对于一般的语言使用者来说 ,20% 的语言特性就能够满足 80% 的使用需求,剩下在使用中掌握。基于这一理论,Go 基础系列的文章不会刻意追求面面俱到,但该有知识点都会覆盖,目的是带你快跑赶上 Golang 这趟新车。

Hurry up , Let's go !

前面我们学习过 Golang 中基础数据类型,比如内置类型 int string bool 等,其实还有一些复杂一点点,但很好用的复合类型,类似 C 中的数组和 struct、C++ 中的 map ,今天我们就来学习 Go 中的复合类型。

通过本文的学习你将掌握以下知识:

  • 结构体

  • 指针类型

  • 数组和切片

  • 映射类型

指针

指针不保存实际数据的内容,而是保存了指向值的内存地址 。用 & 对变量取内存地址,用 * 来访问指向的内存。这点和 C 中的指针是一样,唯一不同的是 Go 中的指针不能运算。

 a := 3pa := &a // 用 `&` 对变量取内存地址fmt.Println("point", a, *pa) // 用 `*` 来访问指向的内存

只声明没赋值的指针值是 nil ,代表空指针。

 var a0 *int // 只声明没赋值的指针是nilif a0 == nil {fmt.Println("point", "it is nil point")}

结构体

与C中的结构体类似, 结构体是一种聚合的数据类型,是由零个或多个任意类型的值聚合成的实体。每个值称为结构体的成员,看例子:

type Test struct {a intb int}

语法上的不同看到了吗? 每个结构体字段之后没有分号,没有分号写起来还是很舒服的。

初始化

可以在定义的时候初始化

test := Test{1, 2}  // 定义结构体变量并初始化

初始化部分结构体字段

t2  = Test{a: 3}   //指定赋值Test.a为3  Test.b隐式赋值0

隐式初始化

t3  = Test{}       // .a .b都隐式赋值0

多个变量可以分组一起赋值

var (t1  = Test{8, 6}t2  = Test{a: 3}  //指定赋值Test.a  Test.b隐式赋值0t3  = Test{}      // .a .b都隐式赋值0pt4 = &Test{8, 6} // 指针
)

访问成员

通过 . 运算来访问结构体成员,不区分结构体类型或是结构体指针类型。

fmt.Println("struct", st0.a, st0.b) // 通过 . 运算来访问结构体成员

对于只声明没赋值的结构体,其内部变量被赋予零值,下面我们声明了 st0 但没有对其赋值。

var st0 Test  
fmt.Println("struct", st0.a, st0.b) //输出:struct 0 0

数组

数组是一个由固定长度的特定类型元素组成的序列,一个数组可以由零个或多个元素组成。 数组可以用下标访问元素,下标从 0 开始。

数组声明后赋值

 var strarr [2]string // 数组声明语法strarr[0] = "ready"strarr[1] = "go"

声明赋值同时完成

 intarr := [5]int{6, 8, 9, 10, 7} // 声明赋值同时完成

对于确定初始值个数的数组,可以省略数组长度

 intarr := [...]int{6, 8, 9, 10, 7} // 声明赋值同时完成

Slice 切片

切片是变长的序列,序列中每个元素都有相同的类型。slice 语法和数组很像,只是没有固定长度而已,切片底层引用一个数组对象,修改切片会修改原数组。

通过切片可以访问数组的部分或全部元素,正因为切片长度不是固定的,因此切片比数组更加的常用。

声明与初始化

常规初始化

简短声明并初始化切片

s0 := []int{1, 2, 3, 4, 5, 6} // 简短声明加赋值

声明后再初始化

var s []int        // 声明切片s
s = s0     // 用切片s0初始化切片s

声明并初始化切片

var s00 []int = s0 // 用切片s0初始化切片s

切片的零值是 nil

// 切片的零值是nil 空切片长度和容量都是0
var nilslice []int
if nilslice == nil {fmt.Println("slice", "nilslice is nil ", len(nilslice), cap(nilslice))
}

make初始化

除了上述的常规初始化方法,还可以用 make 内置函数来创建切片

// 内建函数make创建切片,指定切片长度和容量
// make 函数会分配一个元素为零值的数组并返回一个引用了它的切片
s2 := make([]int, 4, 6) //创建元素都是0的切片s2, 长度为4,容量为6 第三个参数可以省略
fmt.Println("slice", len(s2), cap(s2), s2)

切片长度

长度表示切片中元素的数目,可用内置函数 len 函数得到。

切片容量

容量表示切片中第一个元素到引用的底层数组结尾所包含元素个数,可用内置函数 cap 求得。

切片区间

切片区间遵循「左闭右开」原则,

s0 := [5]int{6, 8, 9, 10, 7} // 数组定义
var slice []int = intarr[1:4]    //  创建切片slice 包含数组子序列

默认上下界。切片下界的默认值为 0,上界默认是该切片的长度。

fmt.Println("slice", s0[:], s0[0:], s0[:5], s0[0:5]) // 这四个切片相同

切片append操作

append 函数用于在切片末尾追加新元素。

添加元素也分两种情况。

添加之后长度还在原切片容量范围内

s2 := make([]int, 4, 6) //创建元素都是0的切片s2, 长度为4,容量为6 第三个参数可以省略
s22 := append(s2, 2)    // append每次都是在最后添加,所以此时,s21 s22指向同一个底层数组
fmt.Println(s21, s22)   // [0 0 0 0 2] [0 0 0 0 2]

添加元素之后长度超出原切片容量

此时会分配新的数组空间,并返回指向这个新分配的数组的切片。

下面例子中 s24 切片已经指向新分配的数组,s22 依然指向的是原来的数组空间,而 s24 已经指向了新的底层数组。

 s24 := append(s2, 1, 2, 3)fmt.Println(s24, s22) // s24 [0 0 0 0 1 2 3] [0 0 0 0 2]

二维切片

可以定义切片的切片,类似其他语言中的二维数组用法。参考代码:

 s3 := [][]int{{1, 1, 1},{2, 2, 2},}fmt.Println(s3, s3[0], len(s3), cap(s3)) // 输出: [[1 1 1] [2 2 2]] [1 1 1] 2 2

map 映射类型

在 Go 中 map 是键值对类型,代表 key 和value 的映射关系,一个map就是一个哈希表的引用 。

定义和初始化

下面这样定义并初始化一个 map 变量

 m0 := map[int]string{0: "0",1: "1",}

也可以用内置 make 函数来初始化一个 map 变量,后续再向其中添加键值对。像下面这样:

 m1 := make(map[int]string) // make 函数会返回给定类型的映射,并将其初始化备用if m1 != nil {fmt.Println("map", "m1 is not nil", m1) // m1 不是nil}m1[0] = "1"m1[1] = "2"

注意:只声明不初始化的map变量是 nil 映射,不能直接拿来用!

 var m map[int]string // 未初始化的m零值是nil映射if m == nil {fmt.Println("map", "m is nil", m)}//m[0] = "1" // 这句引发panic异常, 映射的零值为 nil 。nil映射既没有键,也不能添加键。

元素读取

使用语法:vaule= m[key] 获取键 key 对应的元素 vaule 。

上面我们只用了一个变量来获取元素,其实这个操作会返回两个值,第一个返回值代表读书的元素,第二个返回值是代表键是否存在的 bool 类型,举例说明:

 v, st := m1[0]  // v是元素值,下标对应的元素存在st=true 否则st=false_, st1 := m1[0] // _ 符号表示忽略第一个元素v1, _ := m1[0]  // _ 符号表示忽略第二个元素 fmt.Println(v, st, v1, st1, m1[2]) // m1[2]不存在,返回元素string的零值「空字符」

删除元素

内置函数 delete 可以删除 map 元素,举例:

delete(m1, 1)  // 删除键是 1 的元素

range 遍历

range 用于遍历 切片 或 映射。

数组或切片遍历

当使用for 循环和 range 遍历数组或切片时,每次迭代都会返回两个值。第一个值为当前元素的下标,第二个值为该下标所对应元素的一份副本。

s1 := []int{1, 2, 3, 4, 5, 6}  
for key, vaule := range s1 {fmt.Println("range", key, vaule)
}for key := range s1 { // 只需要索引,忽略第二个变量即可fmt.Println("range", key)
}for _, vaule := range s1 { // 只需要元素值,用'_'忽略索引fmt.Println("range", vaule)
}

map 遍历

当使用for 循环和 range 遍历map 时,每次迭代都会返回两个值。第一个值为当前元素 key , 第二个值是 value

m0 := map[int]string{0: "0",1: "1",
}
fmt.Println("map", m0)for k, v := range m0 { // range遍历映射,返回key 和 vaulefmt.Println("map", "m0 key:", k, "vaule:", v)
}

总结

通过本文的学习,我们掌握了 Golang 中基本的控制流语句,利用这些控制语句加上一节介绍的变量等基础知识,可以构成丰富的程序逻辑,你就能用 Golang 来做一些有意思的事情了。

感谢各位的阅读,文章的目的是分享对知识的理解,技术类文章我都会反复求证以求最大程度保证准确性,若文中出现明显纰漏也欢迎指出,我们一起在探讨中学习.

今天的技术分享就到这里,我们下期再见。


创作不易,白票不是好习惯,如果在我这有收获,动动手指「点赞」「关注」是对我持续创作的最大支持。

https://coub.com/stories/147574
https://coub.com/stories/147615
https://coub.com/stories/147632
https://coub.com/stories/147674
https://coub.com/stories/147681
https://coub.com/stories/147715
https://coub.com/stories/147718
https://coub.com/stories/147766
https://coub.com/stories/147802
https://coub.com/stories/147831
https://coub.com/stories/147847
https://coub.com/stories/147863
https://coub.com/stories/147892
https://coub.com/stories/147916
https://coub.com/stories/147941
https://coub.com/stories/147982
https://coub.com/stories/148029
https://coub.com/stories/148086
https://coub.com/stories/148113
https://coub.com/stories/148147
https://coub.com/stories/148148
https://coub.com/stories/148201
https://coub.com/stories/148202
https://coub.com/stories/148260
https://coub.com/stories/148258
https://coub.com/stories/148305
https://coub.com/stories/148304
https://coub.com/stories/148369
https://coub.com/stories/148376
https://coub.com/stories/148443
https://coub.com/stories/148457
https://coub.com/stories/148506
https://coub.com/stories/148518
https://coub.com/stories/148581
https://coub.com/stories/148598
https://coub.com/stories/148668
https://coub.com/stories/148683
https://coub.com/stories/148799
https://coub.com/stories/148856
https://coub.com/stories/148921
https://coub.com/stories/148969
https://coub.com/stories/148999
https://coub.com/stories/149015
https://coub.com/stories/149072
https://coub.com/stories/149107
https://coub.com/stories/149122
https://coub.com/stories/149190
https://coub.com/stories/149217
https://coub.com/stories/149279
https://coub.com/stories/149326
https://coub.com/stories/149393
https://coub.com/stories/149467
https://coub.com/stories/149477
https://coub.com/stories/149550
https://coub.com/stories/149561
https://coub.com/stories/149605
https://coub.com/stories/149639
https://coub.com/stories/149669
https://coub.com/stories/149760
https://coub.com/stories/149763
https://coub.com/stories/149881
https://coub.com/stories/150014
https://coub.com/stories/149996
https://coub.com/stories/150089
https://coub.com/stories/150099
https://coub.com/stories/150156
https://coub.com/stories/150162
https://coub.com/stories/150224
https://coub.com/stories/150226
https://coub.com/stories/150301
https://coub.com/stories/150305
https://coub.com/stories/150432
https://coub.com/stories/150440
https://coub.com/stories/150519
https://coub.com/stories/150565
https://coub.com/stories/150675
https://coub.com/stories/150729
https://coub.com/stories/150777
https://coub.com/stories/150867
https://coub.com/stories/150943
https://coub.com/stories/151057
https://coub.com/stories/151076
https://coub.com/stories/151113
https://coub.com/stories/151221
https://coub.com/stories/151230
https://coub.com/stories/151295
https://coub.com/stories/151302
https://coub.com/stories/151389
https://coub.com/stories/151407
https://coub.com/stories/151533
https://coub.com/stories/151590
https://coub.com/stories/151616
https://coub.com/stories/151665
https://coub.com/stories/151736
https://coub.com/stories/151778
https://coub.com/stories/151857
https://coub.com/stories/151905
https://coub.com/stories/151981
https://coub.com/stories/151998
https://coub.com/stories/152093
https://coub.com/stories/152148
https://coub.com/stories/152280
https://coub.com/stories/152293
https://coub.com/stories/152347
https://coub.com/stories/152359
https://coub.com/stories/152446
https://coub.com/stories/152455
https://coub.com/stories/152663
https://coub.com/stories/152681
https://coub.com/stories/152736
https://coub.com/stories/152730
https://coub.com/stories/152817
https://coub.com/stories/152862
https://coub.com/stories/152928
https://coub.com/stories/152949
https://coub.com/stories/152994
https://coub.com/stories/153069
https://coub.com/stories/153087
https://coub.com/stories/153180
https://coub.com/stories/153196
https://coub.com/stories/153285
https://coub.com/stories/153326
https://coub.com/stories/153378
https://coub.com/stories/153420
https://coub.com/stories/153476
https://coub.com/stories/153545
https://coub.com/stories/153551
https://coub.com/stories/153624
https://coub.com/stories/153626
https://coub.com/stories/153761
https://coub.com/stories/153755
https://coub.com/stories/153838
https://coub.com/stories/153967
https://coub.com/stories/153997
https://coub.com/stories/154028
https://coub.com/stories/154085
https://coub.com/stories/154075
https://coub.com/stories/154149
https://coub.com/stories/154211
https://coub.com/stories/154254
https://coub.com/stories/154303
https://coub.com/stories/154353
https://coub.com/stories/154412
https://coub.com/stories/154434
https://coub.com/stories/154507
https://coub.com/stories/154535
https://coub.com/stories/154605
https://coub.com/stories/154627
https://coub.com/stories/154714
https://coub.com/stories/154758
https://coub.com/stories/154811
https://coub.com/stories/154823
https://coub.com/stories/154877
https://coub.com/stories/154900
https://coub.com/stories/154951
https://coub.com/stories/154991
https://coub.com/stories/155049
https://coub.com/stories/155081
https://coub.com/stories/155158
https://coub.com/stories/155173
https://coub.com/stories/155249
https://coub.com/stories/155241
https://coub.com/stories/155310
https://coub.com/stories/155333
https://coub.com/stories/155405
https://coub.com/stories/155447
https://coub.com/stories/155523
https://coub.com/stories/155520
https://coub.com/stories/155605
https://coub.com/stories/155643
https://coub.com/stories/155691
https://coub.com/stories/155760
https://coub.com/stories/155770
https://coub.com/stories/155799
https://coub.com/stories/155825
https://coub.com/stories/155871
https://coub.com/stories/155892
https://coub.com/stories/155902
https://coub.com/stories/155940
https://coub.com/stories/155972
https://coub.com/stories/155995
https://coub.com/stories/156014
https://coub.com/stories/156040
https://coub.com/stories/156069
https://coub.com/stories/156095
https://coub.com/stories/156136
https://coub.com/stories/156135
https://coub.com/stories/156174
https://coub.com/stories/156212
https://coub.com/stories/156224
https://coub.com/stories/156249
https://coub.com/stories/156276
https://coub.com/stories/156285
https://coub.com/stories/156330
https://coub.com/stories/156331
https://coub.com/stories/156372
https://coub.com/stories/156396
https://coub.com/stories/156408
https://coub.com/stories/156456
https://coub.com/stories/156460
https://coub.com/stories/156502
https://coub.com/stories/156510
https://coub.com/stories/156544
https://coub.com/stories/156561
https://coub.com/stories/156607
https://coub.com/stories/156612
https://coub.com/stories/156659
https://coub.com/stories/156658
https://coub.com/stories/156730
https://coub.com/stories/156743
https://coub.com/stories/156784
https://coub.com/stories/156790
https://coub.com/stories/156848
https://coub.com/stories/156855
https://coub.com/stories/156906
https://coub.com/stories/156942
https://coub.com/stories/156952
https://coub.com/stories/156984
https://coub.com/stories/157017
https://coub.com/stories/157047
https://coub.com/stories/157057
https://coub.com/stories/157094
https://coub.com/stories/157131
https://coub.com/stories/157123
https://coub.com/stories/157170
https://coub.com/stories/157200
https://coub.com/stories/157205
https://coub.com/stories/157244
https://coub.com/stories/157258
https://coub.com/stories/157289
https://coub.com/stories/157321
https://coub.com/stories/157335
https://coub.com/stories/157397
https://coub.com/stories/157411
https://coub.com/stories/157475
https://coub.com/stories/157494
https://coub.com/stories/157534
https://coub.com/stories/157565
https://coub.com/stories/157616
https://coub.com/stories/157619
https://coub.com/stories/157689
https://coub.com/stories/157714
https://coub.com/stories/157766
https://coub.com/stories/157774
https://coub.com/stories/157815
https://coub.com/stories/157845
https://coub.com/stories/157841
https://coub.com/stories/157882
https://coub.com/stories/157921
https://coub.com/stories/157933
https://coub.com/stories/157991
https://coub.com/stories/158014
https://coub.com/stories/158032
https://coub.com/stories/158072
https://coub.com/stories/158095
https://coub.com/stories/158139
https://coub.com/stories/158157
https://coub.com/stories/158192
https://coub.com/stories/158242
https://coub.com/stories/158243
https://coub.com/stories/158311
https://coub.com/stories/158336
https://coub.com/stories/158365
https://coub.com/stories/158410
https://coub.com/stories/158424
https://coub.com/stories/158440
https://coub.com/stories/158463
https://coub.com/stories/158478
https://coub.com/stories/158497
https://coub.com/stories/158526
https://coub.com/stories/158531
https://coub.com/stories/158578
https://coub.com/stories/158595
https://coub.com/stories/158627
https://coub.com/stories/158658
https://coub.com/stories/158691
https://coub.com/stories/158741
https://coub.com/stories/158756
https://coub.com/stories/158790
https://coub.com/stories/158803
https://coub.com/stories/158828
https://coub.com/stories/158872
https://coub.com/stories/158885
https://coub.com/stories/158934
https://coub.com/stories/158946
https://coub.com/stories/158974
https://coub.com/stories/159003
https://coub.com/stories/159006
https://coub.com/stories/159036
https://coub.com/stories/159069
https://coub.com/stories/159071
https://coub.com/stories/159104
https://coub.com/stories/159135
https://coub.com/stories/159155
https://coub.com/stories/159210
https://coub.com/stories/159227
https://coub.com/stories/159256
https://coub.com/stories/159323
https://coub.com/stories/159310
https://coub.com/stories/159367
https://coub.com/stories/159391
https://coub.com/stories/159397
https://coub.com/stories/159433
https://coub.com/stories/159472
https://coub.com/stories/159492
https://coub.com/stories/159538
https://coub.com/stories/159545
https://coub.com/stories/159602
https://coub.com/stories/159609
https://coub.com/stories/159662
https://coub.com/stories/159697
https://coub.com/stories/159703
https://coub.com/stories/159729
https://coub.com/stories/159772
https://coub.com/stories/159787
https://coub.com/stories/159836
https://coub.com/stories/159850
https://coub.com/stories/159882
https://coub.com/stories/159898
https://coub.com/stories/159919
https://coub.com/stories/159972
https://coub.com/stories/160009
https://coub.com/stories/160048
https://coub.com/stories/160097
https://coub.com/stories/160131
https://coub.com/stories/160208
https://coub.com/stories/160225
https://coub.com/stories/160304
https://coub.com/stories/160305
https://coub.com/stories/160394
https://coub.com/stories/160400
https://coub.com/stories/160474
https://coub.com/stories/160569
https://coub.com/stories/160643
https://coub.com/stories/160653
https://coub.com/stories/160703
https://coub.com/stories/160724
https://coub.com/stories/160755
https://coub.com/stories/160781
https://coub.com/stories/160813
https://coub.com/stories/160847
https://coub.com/stories/160902
https://coub.com/stories/160923
https://coub.com/stories/160985
https://coub.com/stories/160990
https://coub.com/stories/161068
https://coub.com/stories/161103
https://coub.com/stories/161145
https://coub.com/stories/161200
https://coub.com/stories/161218
https://coub.com/stories/161280
https://coub.com/stories/161298
https://coub.com/stories/161352
https://coub.com/stories/161377
https://coub.com/stories/161424
https://coub.com/stories/161478
https://coub.com/stories/161505
https://coub.com/stories/161547
https://coub.com/stories/161588
https://coub.com/stories/161616
https://coub.com/stories/161682
https://coub.com/stories/161685
https://coub.com/stories/161756
https://coub.com/stories/161764
https://coub.com/stories/161792
https://coub.com/stories/161858
https://coub.com/stories/161887
https://coub.com/stories/161934
https://coub.com/stories/161978
https://coub.com/stories/162050
https://coub.com/stories/162062
https://coub.com/stories/162148
https://coub.com/stories/162225
https://coub.com/stories/162282
https://coub.com/stories/162283
https://coub.com/stories/162391
https://coub.com/stories/162403
https://coub.com/stories/162452
https://coub.com/stories/162503
https://coub.com/stories/162511
https://coub.com/stories/162547
https://coub.com/stories/162584
https://coub.com/stories/162583
https://coub.com/stories/162652
https://coub.com/stories/162671
https://coub.com/stories/162717
https://coub.com/stories/162745
https://coub.com/stories/162795
https://coub.com/stories/162822
https://coub.com/stories/162873
https://coub.com/stories/162894
https://coub.com/stories/162950
https://coub.com/stories/162953
https://coub.com/stories/162998
https://coub.com/stories/163038
https://coub.com/stories/163062
https://coub.com/stories/163093
https://coub.com/stories/163114
https://coub.com/stories/163182
https://coub.com/stories/163202
https://coub.com/stories/163278
https://coub.com/stories/163313
https://coub.com/stories/163322
https://coub.com/stories/163394
https://coub.com/stories/163414
https://coub.com/stories/163473
https://coub.com/stories/163495
https://coub.com/stories/163543
https://coub.com/stories/163586
https://coub.com/stories/163603
https://coub.com/stories/163657
https://coub.com/stories/163708
https://coub.com/stories/163730
https://coub.com/stories/163809
https://coub.com/stories/163831
https://coub.com/stories/163869
https://coub.com/stories/163891
https://coub.com/stories/163935
https://coub.com/stories/163986
https://coub.com/stories/164026
https://coub.com/stories/164076
https://coub.com/stories/164146
https://coub.com/stories/164162
https://coub.com/stories/164231
https://coub.com/stories/164252
https://coub.com/stories/164293
https://coub.com/stories/164327
https://coub.com/stories/164378
https://coub.com/stories/164417
https://coub.com/stories/164464
https://coub.com/stories/164470
https://coub.com/stories/164538
https://coub.com/stories/164597
https://coub.com/stories/164625
https://coub.com/stories/164654
https://coub.com/stories/164683
https://coub.com/stories/164750
https://coub.com/stories/164775
https://coub.com/stories/164817
https://coub.com/stories/164890
https://coub.com/stories/164899
https://coub.com/stories/164973
https://coub.com/stories/164986
https://coub.com/stories/165048
https://coub.com/stories/165082
https://coub.com/stories/165112
https://coub.com/stories/165168
https://coub.com/stories/165192
https://coub.com/stories/165232
https://coub.com/stories/165318
https://coub.com/stories/165315
https://coub.com/stories/165387
https://coub.com/stories/165420
https://coub.com/stories/165451
https://coub.com/stories/165469
https://coub.com/stories/165546
https://coub.com/stories/165587
https://coub.com/stories/165607
https://coub.com/stories/165638
https://coub.com/stories/165667
https://coub.com/stories/165671
https://coub.com/stories/165698
https://coub.com/stories/165723
https://coub.com/stories/165765
https://coub.com/stories/165780
https://coub.com/stories/165817
https://coub.com/stories/165843
https://coub.com/stories/165859
https://coub.com/stories/165913
https://coub.com/stories/165928
https://coub.com/stories/165987
https://coub.com/stories/166003
https://coub.com/stories/166083
https://coub.com/stories/166108
https://coub.com/stories/166114
https://coub.com/stories/166176
https://coub.com/stories/166196
https://coub.com/stories/166232
https://coub.com/stories/166260
https://coub.com/stories/166274
https://coub.com/stories/166308
https://coub.com/stories/166329
https://coub.com/stories/166366
https://coub.com/stories/166390
https://coub.com/stories/166428
https://coub.com/stories/166452
https://coub.com/stories/166475
https://coub.com/stories/166508
https://coub.com/stories/166520
https://coub.com/stories/166564
https://coub.com/stories/166565
https://coub.com/stories/166599
https://coub.com/stories/166604
https://coub.com/stories/166647
https://coub.com/stories/166658
https://coub.com/stories/166699
https://coub.com/stories/166743
https://coub.com/stories/166764
https://coub.com/stories/166798
https://coub.com/stories/166822
https://coub.com/stories/166840
https://coub.com/stories/166868
https://coub.com/stories/166884
https://coub.com/stories/166918
https://coub.com/stories/166914
https://coub.com/stories/166959
https://coub.com/stories/166963
https://coub.com/stories/167014
https://coub.com/stories/167028
https://coub.com/stories/167050
https://coub.com/stories/167090
https://coub.com/stories/167102
https://coub.com/stories/167144
https://coub.com/stories/167145
https://coub.com/stories/167181
https://coub.com/stories/167204
https://coub.com/stories/167257
https://coub.com/stories/167259
https://coub.com/stories/167306
https://coub.com/stories/167308
https://coub.com/stories/167357
https://coub.com/stories/167375
https://coub.com/stories/167429
https://coub.com/stories/167446
https://coub.com/stories/167491
https://coub.com/stories/167516
https://coub.com/stories/167532
https://coub.com/stories/167583
https://coub.com/stories/167588
https://coub.com/stories/167643
https://coub.com/stories/167648
https://coub.com/stories/167704
https://coub.com/stories/167740
https://coub.com/stories/167737
https://coub.com/stories/167791
https://coub.com/stories/167819
https://coub.com/stories/167838
https://coub.com/stories/167877
https://coub.com/stories/167918
https://coub.com/stories/167921
https://coub.com/stories/167957
https://coub.com/stories/167981
https://coub.com/stories/168017
https://coub.com/stories/168043
https://coub.com/stories/168077
https://coub.com/stories/168099
https://coub.com/stories/168120
https://coub.com/stories/168148
https://coub.com/stories/168183
https://coub.com/stories/168202
https://coub.com/stories/168237
https://coub.com/stories/168251
https://coub.com/stories/168300
https://coub.com/stories/168308
https://coub.com/stories/168355
https://coub.com/stories/168366
https://coub.com/stories/168410
https://coub.com/stories/168449
https://coub.com/stories/168456
https://coub.com/stories/168588
https://coub.com/stories/168601
https://coub.com/stories/168660
https://coub.com/stories/168686
https://coub.com/stories/168764
https://coub.com/stories/168836
https://coub.com/stories/168844
https://coub.com/stories/168903
https://coub.com/stories/168933
https://coub.com/stories/168989
https://coub.com/stories/169001
https://coub.com/stories/169034
https://coub.com/stories/169082
https://coub.com/stories/169100
https://coub.com/stories/169153
https://coub.com/stories/169205
https://coub.com/stories/169257
https://coub.com/stories/169291
https://coub.com/stories/169321
https://coub.com/stories/169378
https://coub.com/stories/169395
https://coub.com/stories/169434
https://coub.com/stories/169457
https://coub.com/stories/169498
https://coub.com/stories/169509
https://coub.com/stories/169558
https://coub.com/stories/169578
https://coub.com/stories/169640
https://coub.com/stories/169720
https://coub.com/stories/169722
https://coub.com/stories/169795
https://coub.com/stories/169804
https://coub.com/stories/169899
https://coub.com/stories/169957
https://coub.com/stories/169970
https://coub.com/stories/170005
https://coub.com/stories/170063
https://coub.com/stories/170085
https://coub.com/stories/170136
https://coub.com/stories/170183
https://coub.com/stories/170194
https://coub.com/stories/170233
https://coub.com/stories/170262
https://coub.com/stories/170330
https://coub.com/stories/170386
https://coub.com/stories/170436
https://coub.com/stories/170404
https://coub.com/stories/170498
https://coub.com/stories/170522
https://coub.com/stories/170544
https://coub.com/stories/170576
https://coub.com/stories/170640
https://coub.com/stories/170638
https://coub.com/stories/170681
https://coub.com/stories/170693
https://coub.com/stories/170738
https://coub.com/stories/170762
https://coub.com/stories/170798
https://coub.com/stories/170848
https://coub.com/stories/170926
https://coub.com/stories/170976
https://coub.com/stories/171002
https://coub.com/stories/171010
https://coub.com/stories/171043
https://coub.com/stories/171051
https://coub.com/stories/171090
https://coub.com/stories/171116
https://coub.com/stories/171151
https://coub.com/stories/171191
https://coub.com/stories/171201
https://coub.com/stories/171230
https://coub.com/stories/171244
https://coub.com/stories/171306
https://coub.com/stories/171314
https://coub.com/stories/171379
https://coub.com/stories/171420
https://coub.com/stories/171452
https://coub.com/stories/171505
https://coub.com/stories/171523
https://coub.com/stories/171554
https://coub.com/stories/171582
https://coub.com/stories/171619
https://coub.com/stories/171634
https://coub.com/stories/171691
https://coub.com/stories/171692
https://coub.com/stories/171728
https://coub.com/stories/171731
https://coub.com/stories/171771
https://coub.com/stories/171780
https://coub.com/stories/171846
https://coub.com/stories/171853
https://coub.com/stories/171898
https://coub.com/stories/171925
https://coub.com/stories/171970
https://coub.com/stories/171990
https://coub.com/stories/172032
https://coub.com/stories/172064
https://coub.com/stories/172089
https://coub.com/stories/172136
https://coub.com/stories/172154
https://coub.com/stories/172204
https://coub.com/stories/172217
https://coub.com/stories/172272
https://coub.com/stories/172285
https://coub.com/stories/172356
https://coub.com/stories/172373
https://coub.com/stories/172447
https://coub.com/stories/172466
https://coub.com/stories/172537
https://coub.com/stories/172557
https://coub.com/stories/172622
https://coub.com/stories/172657
https://coub.com/stories/172705
https://coub.com/stories/172717
https://coub.com/stories/172759
https://coub.com/stories/172785
https://coub.com/stories/172810
https://coub.com/stories/172850
https://coub.com/stories/172919
https://coub.com/stories/172926
https://coub.com/stories/172971
https://coub.com/stories/173053
https://coub.com/stories/173062
https://coub.com/stories/173109
https://coub.com/stories/173170
https://coub.com/stories/173203
https://coub.com/stories/173247
https://coub.com/stories/173251
https://coub.com/stories/173321
https://coub.com/stories/173331
https://coub.com/stories/173378
https://coub.com/stories/173421
https://coub.com/stories/173449
https://coub.com/stories/173510
https://coub.com/stories/173529
https://coub.com/stories/173575
https://coub.com/stories/173593
https://coub.com/stories/173633
https://coub.com/stories/173663
https://coub.com/stories/173696
https://coub.com/stories/173720
https://coub.com/stories/173770
https://coub.com/stories/173803
https://coub.com/stories/173865
https://coub.com/stories/173882
https://coub.com/stories/173904
https://coub.com/stories/173928
https://coub.com/stories/173968
https://coub.com/stories/174000
https://coub.com/stories/174022
https://coub.com/stories/174070
https://coub.com/stories/174090
https://coub.com/stories/174122
https://coub.com/stories/174130
https://coub.com/stories/174194
https://coub.com/stories/174212
https://coub.com/stories/174265
https://coub.com/stories/174293
https://coub.com/stories/174324
https://coub.com/stories/174363
https://coub.com/stories/174390
https://coub.com/stories/174418
https://coub.com/stories/174466
https://coub.com/stories/174493
https://coub.com/stories/174547
https://coub.com/stories/174563
https://coub.com/stories/174618
https://coub.com/stories/174615
https://coub.com/stories/174686
https://coub.com/stories/174711
https://coub.com/stories/174732
https://coub.com/stories/174763
https://coub.com/stories/174789
https://coub.com/stories/174823
https://coub.com/stories/174841
https://coub.com/stories/174881
https://coub.com/stories/174896
https://coub.com/stories/174934
https://coub.com/stories/174949
https://coub.com/stories/174983
https://coub.com/stories/175022
https://coub.com/stories/175036
https://coub.com/stories/175066
https://coub.com/stories/175082
https://coub.com/stories/175105
https://coub.com/stories/175131
https://coub.com/stories/175151
https://coub.com/stories/175197
https://coub.com/stories/175202
https://coub.com/stories/175267
https://coub.com/stories/175256
https://coub.com/stories/175318
https://coub.com/stories/175316
https://coub.com/stories/175370
https://coub.com/stories/175373
https://coub.com/stories/175398
https://coub.com/stories/175413
https://coub.com/stories/175438
https://coub.com/stories/175460
https://coub.com/stories/175497
https://coub.com/stories/175499
https://coub.com/stories/175528
https://coub.com/stories/175557
https://coub.com/stories/175569
https://coub.com/stories/175606
https://coub.com/stories/175608
https://coub.com/stories/175631
https://coub.com/stories/175651
https://coub.com/stories/175693
https://coub.com/stories/175700
https://coub.com/stories/175737
https://coub.com/stories/175736
https://coub.com/stories/175759
https://coub.com/stories/175781
https://coub.com/stories/175789
https://coub.com/stories/175823
https://coub.com/stories/175846
https://coub.com/stories/175890
https://coub.com/stories/175887
https://coub.com/stories/175921
https://coub.com/stories/175927
https://coub.com/stories/175975
https://coub.com/stories/175994
https://coub.com/stories/176034
https://coub.com/stories/176062
https://coub.com/stories/176074
https://coub.com/stories/176115
https://coub.com/stories/176121
https://coub.com/stories/176173
https://coub.com/stories/176188
https://coub.com/stories/176281
https://coub.com/stories/176292
https://coub.com/stories/176328
https://coub.com/stories/176342
https://coub.com/stories/176379
https://coub.com/stories/176416
https://coub.com/stories/176448
https://coub.com/stories/176454
https://coub.com/stories/176498
https://coub.com/stories/176499
https://coub.com/stories/176535
https://coub.com/stories/176557
https://coub.com/stories/176589
https://coub.com/stories/176602
https://coub.com/stories/176633
https://coub.com/stories/176641
https://coub.com/stories/176673
https://coub.com/stories/176691
https://coub.com/stories/176720
https://coub.com/stories/176729
https://coub.com/stories/176771
https://coub.com/stories/176795
https://coub.com/stories/176832
https://coub.com/stories/176860
https://coub.com/stories/176892
https://coub.com/stories/176899
https://coub.com/stories/176962
https://coub.com/stories/176968
https://coub.com/stories/177043
https://coub.com/stories/177086
https://coub.com/stories/177121
https://coub.com/stories/177184
https://coub.com/stories/177181
https://coub.com/stories/177238
https://coub.com/stories/177263
https://coub.com/stories/177316
https://coub.com/stories/177356
https://coub.com/stories/177399
https://coub.com/stories/177428
https://coub.com/stories/177473
https://coub.com/stories/177539
https://coub.com/stories/177549
https://coub.com/stories/177618
https://coub.com/stories/177622
https://coub.com/stories/177668
https://coub.com/stories/177773
https://coub.com/stories/177788
https://coub.com/stories/177872
https://coub.com/stories/177905
https://coub.com/stories/177966
https://coub.com/stories/177979
https://coub.com/stories/178040
https://coub.com/stories/178064
https://coub.com/stories/178111
https://coub.com/stories/178175
https://coub.com/stories/178188
https://coub.com/stories/178287
https://coub.com/stories/178320
https://coub.com/stories/178359
https://coub.com/stories/178402
https://coub.com/stories/178399
https://coub.com/stories/178474
https://coub.com/stories/178528
https://coub.com/stories/178551
https://coub.com/stories/178584
https://coub.com/stories/178645
https://coub.com/stories/178653
https://coub.com/stories/178726
https://coub.com/stories/178760
https://coub.com/stories/178849
https://coub.com/stories/178938
https://coub.com/stories/179006
https://coub.com/stories/179008
https://coub.com/stories/179086
https://coub.com/stories/179103
https://coub.com/stories/179181
https://coub.com/stories/179210
https://coub.com/stories/179302
https://coub.com/stories/179292
https://coub.com/stories/179378
https://coub.com/stories/179382
https://coub.com/stories/179427
https://coub.com/stories/179445
https://coub.com/stories/179515
https://coub.com/stories/179565
https://coub.com/stories/179608
https://coub.com/stories/179674
https://coub.com/stories/179721
https://coub.com/stories/179762
https://coub.com/stories/179781
https://coub.com/stories/179850
https://coub.com/stories/179865
https://coub.com/stories/179932
https://coub.com/stories/179949
https://coub.com/stories/180019
https://coub.com/stories/180024
https://coub.com/stories/180103
https://coub.com/stories/180115
https://coub.com/stories/180200
https://coub.com/stories/180204
https://coub.com/stories/180299
https://coub.com/stories/180313
https://coub.com/stories/180385
https://coub.com/stories/180466
https://coub.com/stories/180553
https://coub.com/stories/180586
https://coub.com/stories/180589
https://coub.com/stories/180727
https://coub.com/stories/180811
https://coub.com/stories/180852
https://coub.com/stories/180923
https://coub.com/stories/180968
https://coub.com/stories/181013
https://coub.com/stories/181041
https://coub.com/stories/181063
https://coub.com/stories/181113
https://coub.com/stories/181141
https://coub.com/stories/181201
https://coub.com/stories/181230
https://coub.com/stories/181290
https://coub.com/stories/181300
https://coub.com/stories/181323
https://coub.com/stories/181420
https://coub.com/stories/181443
https://coub.com/stories/181483
https://coub.com/stories/181492
https://coub.com/stories/181557
https://coub.com/stories/181531
https://coub.com/stories/181632
https://coub.com/stories/181681
https://coub.com/stories/181699
https://coub.com/stories/181753
https://coub.com/stories/181762
https://coub.com/stories/181817
https://coub.com/stories/181854
https://coub.com/stories/181905
https://coub.com/stories/181976
https://coub.com/stories/182035
https://coub.com/stories/182081
https://coub.com/stories/182147
https://coub.com/stories/182190
https://coub.com/stories/182207
https://coub.com/stories/182244
https://coub.com/stories/182262
https://coub.com/stories/182315
https://coub.com/stories/182357
https://coub.com/stories/182379
https://coub.com/stories/182491
https://coub.com/stories/182533
https://coub.com/stories/182556
https://coub.com/stories/182610
https://coub.com/stories/182648
https://coub.com/stories/182684
https://coub.com/stories/182701
https://coub.com/stories/182728
https://coub.com/stories/182757
https://coub.com/stories/182764
https://coub.com/stories/182810
https://coub.com/stories/182895
https://coub.com/stories/182905
https://coub.com/stories/182946
https://coub.com/stories/182950
https://coub.com/stories/182999
https://coub.com/stories/183047
https://coub.com/stories/183058
https://coub.com/stories/183119
https://coub.com/stories/183177
https://coub.com/stories/183240
https://coub.com/stories/183250
https://coub.com/stories/183306
https://coub.com/stories/183307
https://coub.com/stories/183343
https://coub.com/stories/183367
https://coub.com/stories/183408
https://coub.com/stories/183446
https://coub.com/stories/183481
https://coub.com/stories/183505
https://coub.com/stories/183534
https://coub.com/stories/183554
https://coub.com/stories/183592
https://coub.com/stories/183630
https://coub.com/stories/183671
https://coub.com/stories/183685
https://coub.com/stories/183708
https://coub.com/stories/183748
https://coub.com/stories/183755
https://coub.com/stories/183806
https://coub.com/stories/183858
https://coub.com/stories/183867
https://coub.com/stories/183902
https://coub.com/stories/183946
https://coub.com/stories/183957
https://coub.com/stories/183992
https://coub.com/stories/184017
https://coub.com/stories/184069
https://coub.com/stories/184057
https://coub.com/stories/184094
https://coub.com/stories/184127
https://coub.com/stories/184139
https://coub.com/stories/184187
https://coub.com/stories/184204
https://coub.com/stories/184252
https://coub.com/stories/184264
https://coub.com/stories/184319
https://coub.com/stories/184341
https://coub.com/stories/184380
https://coub.com/stories/184403
https://coub.com/stories/184430
https://coub.com/stories/184468
https://coub.com/stories/184473
https://coub.com/stories/184517

查看全文
如若内容造成侵权/违法违规/事实不符,请联系编程学习网邮箱:809451989@qq.com进行投诉反馈,一经查实,立即删除!

相关文章

  1. 在VMware中用CenOS7搭建Hadoop集群

    前期准备工作在VMware中利用Hadoop_Master这条虚拟机复制出另外另外两个虚拟机,分别取名为:Hadoop_slave,Hadoop_slave1Hadoop_Master虚拟机,Hadoop压缩包,JDK压缩包 链接:https://pan.baidu.com/s/1QETJ3o98z4usyN1j1LZx7A 提取码:lfgx1、关闭防火墙 问题: 为什么要关闭…...

    2024/4/24 14:33:21
  2. 2020最新 阿里云ecs建站 一键环境配置 图文超详细_liunx下建站

    一、购买域名和阿里云ecs首先,我们需要购买ecs,选择了1核1G的入门版,地域可以选择离你比较近的;在这里我们CentOS 6.5 64位操作系统;如果你是学生,阿里云还有不错的体验价格,9.9一个月,性价比超高;打一波广告,阿里云这一点的确不错!(查看阿里云折扣)购买域名也是需…...

    2024/5/9 1:34:56
  3. Python3邮件发送

    1.利用聚合网站的接口,获取深圳的天气预报登录https://www.juhe.cn/,申请天气api接口,然后利用python去调用api获取近5日天气数据,并命名为weather.py# coding=utf-8 import requestsclass Weather_get:def __init__(self, city, key):self.city = cityself.key = keydef req…...

    2024/5/8 18:42:56
  4. JavaScript 教程学习笔记2-基本语法

    基本语法1.语句2.变量2.1 概念2.2 变量提升3.标识符4.注释5.区块6.条件语句6.1 if 结构if...else 结构switch 结构6.4三元运算符 ?:7.循环语句7.1 while 循环7.2 for 循环7.3 do...while 循环7.4 break 语句和 continue 语句7.5 标签(label) 1.语句 JavaScript 程序的执行单…...

    2024/5/9 0:13:33
  5. 如何实现一个简单eureka部署

    1.首先创建一个独立的微服务 来搭建eureka2.引入maven的依赖<!--导入eureka服务--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-eureka-server</artifactId></dependency>3…...

    2024/5/8 17:32:18
  6. 离散数学——Euler 图与 Hamilton 图

    Euler 图与 Hamilton 图Euler 图Hamilton 图中国邮路问题Euler 图欧拉图\textcolor{red}{欧拉图}欧拉图: 1.经过所有边2.边不重复3.起点、终点重合\textcolor{blue}{1. 经过所有边\\2. 边不重复\\3. 起点、终点重合}1.经过所有边2.边不重复3.起点、终点重合充要条件\textcolor…...

    2024/5/8 13:26:19
  7. Android(7)——高级控件ListView,CardView

    文章目录Android1 ListView1.1 ListView展示列表数据1.2 获取系统已安装应用列表1.3 网络下载数据并显示1.4 引用不同行布局2 CardView控件2.1 介绍2.2 demoBaseAdapter Android 安卓开发者指南:https://developer.android.google.cn/guide 1 ListView ListView是android中常用…...

    2024/5/8 14:24:22
  8. 1、 电信号

    信号的概念信号是反应消息的物理量,是消息的表现形式。电信号的概念随着时间变化的电压或电流。因为电信号是所有信号中最容易转换和控制的信号,所以得到广泛应用。电子电路中将信号分为:模拟信号在时间和数值上均具有连续性,且在任何瞬间的电压或电流值都是有意义的。数字…...

    2024/4/24 14:33:12
  9. UnrealEngine

    Win10源码编译UnrealEngine背景准备工作编译更新到Epic的最新更改 背景 其实从来没有记笔记的习惯,总觉得理解了就行了,奈何年纪大了,有些东西不记一下确实容易忘,复用的时候还要再花同样长的时间重新学习,效率太低了,为了提高生产力还是记一下。 准备工作创建Epic Games…...

    2024/5/8 12:16:56
  10. docker centos/mysql-57-centos7镜像 mysql大小写敏感问题

    文章目录1. 不同系统下mysql大小写敏感情况2. 查看mysql的大小写敏感3. 一般linux下mysql设置为大小写不敏感4. docker centos/mysql-57-centos7镜像 mysql设置为大小写敏感 1. 不同系统下mysql大小写敏感情况 windows下,mysql大小写默认不敏感 linux下,mysql大小写默认敏感2…...

    2024/5/8 17:51:19
  11. springboot的pom文件relativePath报错问题

    springboot的pom文件relativePath报错问题 遇到朋友问的一个小问题,他在百度以后没能解决,话不多说,直接上图从图中可以看出,父子工程引用路径出了问题,我就百度了一下,找了几篇文章大体都是路径指向问题,这边我就复现一下朋友操作的过程比较重要 第1.0.0.1第1.0.0.2步第1.0.0.…...

    2024/5/8 18:59:53
  12. NumPy包的安装

    NumPy包安装然后打开pychrom ,导入numpy执行以下代码 from numpy import *print(eye(4))# 运行结果如下: [[1. 0. 0. 0.][0. 1. 0. 0.][0. 0. 1. 0.][0. 0. 0. 1.]]...

    2024/4/27 21:12:51
  13. Python(十五)- 创建二叉树和遍历的实现

    树(tree)是一种非线性的数据结构,是一种抽象数据类型(ADT),用来模拟具有树状结构性质的数据集合,它是由n(n>0)个有限节点通过连接它们的边组成一个具有层次关系的集合。1.简介 树的结构十分直观,而树的很多概念定义都有一个相同的特点:递归,也就是说,一棵树要满…...

    2024/5/8 20:11:27
  14. ASP.NET三层架构——DAL层(数据访问层)中的Service类

    先简单介绍一下吧,DAL层又称:数据访问层,其功能主要是负责数据库的访问。主要实现对数据表的Select(查询)、Insert(插入)、Update(更新)、Delete(删除)等操作。基于”高内聚,低耦合“的设计原则,一个类只完成对某一特定数据的操作。也就是说一个实体类要有一个Ser…...

    2024/5/8 19:09:21
  15. 【梳理】简明操作系统原理 第十章 多核心调度 基于事件的并发(内附文档高清截图)

    参考教材: Operating Systems: Three Easy Pieces Remzi H. Arpaci-Dusseau and Andrea C. Arpaci-Dusseau 在线阅读: http://pages.cs.wisc.edu/~remzi/OSTEP/ University of Wisconsin Madison 教授 Remzi Arpaci-Dusseau 认为课本应该是免费的。 ————————————…...

    2024/4/24 14:33:09
  16. Linux管理进程及计划任务实验(强制终止进程、给服务器系统添加计划任务)

    文章目录Linux管理进程及计划任务实验实验要求实验步骤设置计划运行 Linux管理进程及计划任务实验 实验要求 需求描述 1.管理服务器系统中的进程 ●使用kill命令终止postfix服务的进行 ●查找系统中占用CPU的无用进程,并强行终止该进程 2.设置计划运行的管理系统任务 ●每周一…...

    2024/4/24 14:33:08
  17. Nginx流控

    Nginx流控介绍 流量限制(rate-limiting),是Nginx中一个非常实用,却经常被错误理解和错误配置的功能。我们可以用来限制用户在给定时间内HTTP请求的数量。请求,可以是一个简单网站首页的GET请求,也可以是登录表单的POST请求。 流量限制可以用作安全目的,比如可以减慢暴力密…...

    2024/4/24 14:33:15
  18. Spring-Cloud-Gateway 源码解析 —— 路由(1.1)之 RouteDefinitionLocator 一览

    1. 概述本文主要对 路由定义定位器 RouteDefinitionLocator 做整体的认识。在 《Spring-Cloud-Gateway 源码解析 —— 网关初始化》 中,我们看到路由相关的组件 RouteDefinitionLocator / RouteLocator 的初始化。涉及到的类比较多,我们用下图重新梳理下 :RouteDefinitionLo…...

    2024/4/24 14:33:11
  19. 学习笔记

    学习笔记半个月的时间主要学习以下的一些东西1.AD画板打板,以及一些快捷键的使用。2.对及去了解和观看了一些PX4和Linux的资料,对PX4有了一些认识并尝试在树莓派ubuntu16.04系统上搭建PX4的编译环境。 在这期间发现了一些有趣有用的网站 : PX4官网 https://dev.px4.io AMaze…...

    2024/4/24 14:33:06
  20. 虚拟机Ubuntu上安装VMware Tools

    虚拟机Ubuntu分辨率太小,文件不能拖拽。油管上的一个视频: https://www.youtube.com/watch?v=F5WaWIfi8f8 总结: 终端写入: # sudo apt-get update # sudo apt-get upgrade # sudo reboot再次终端写入: # sudo apt-get update # sudo apt-get install open-vm-tools-des…...

    2024/4/25 21:48:47

最新文章

  1. 如何让路由器分配固定网段(网络号)ip

    一.wan和lan wan广域网&#xff0c;负责连接互联网 lan局域网&#xff0c;负责保证一个区域内的设备可以互相通讯&#xff0c;比如wife就是让所有连接设备处于同一网段下 一.问题导入 1.我们平时在虚拟机和实体机通信时 必须让它们位于同一ip网段下。 通过winscp等软件进行…...

    2024/5/9 3:22:44
  2. 梯度消失和梯度爆炸的一些处理方法

    在这里是记录一下梯度消失或梯度爆炸的一些处理技巧。全当学习总结了如有错误还请留言&#xff0c;在此感激不尽。 权重和梯度的更新公式如下&#xff1a; w w − η ⋅ ∇ w w w - \eta \cdot \nabla w ww−η⋅∇w 个人通俗的理解梯度消失就是网络模型在反向求导的时候出…...

    2024/5/7 10:36:02
  3. 手机无线投屏到windows11电脑

    1 安装无线投影组件 2 电脑端打开允许其他设备投影的开关 3 手机找到投屏选项 4 手机搜索可用设备连接即可 这里的官方文档给的不太好,给了一些让人眼花撩乱的信息,以下是经过整合的有效信息...

    2024/5/7 17:09:12
  4. 面试算法-140-接雨水

    题目 给定 n 个非负整数表示每个宽度为 1 的柱子的高度图&#xff0c;计算按此排列的柱子&#xff0c;下雨之后能接多少雨水。 示例 1&#xff1a; 输入&#xff1a;height [0,1,0,2,1,0,1,3,2,1,2,1] 输出&#xff1a;6 解释&#xff1a;上面是由数组 [0,1,0,2,1,0,1,3,2…...

    2024/5/6 17:38:41
  5. 【外汇早评】美通胀数据走低,美元调整

    原标题:【外汇早评】美通胀数据走低,美元调整昨日美国方面公布了新一期的核心PCE物价指数数据,同比增长1.6%,低于前值和预期值的1.7%,距离美联储的通胀目标2%继续走低,通胀压力较低,且此前美国一季度GDP初值中的消费部分下滑明显,因此市场对美联储后续更可能降息的政策…...

    2024/5/8 6:01:22
  6. 【原油贵金属周评】原油多头拥挤,价格调整

    原标题:【原油贵金属周评】原油多头拥挤,价格调整本周国际劳动节,我们喜迎四天假期,但是整个金融市场确实流动性充沛,大事频发,各个商品波动剧烈。美国方面,在本周四凌晨公布5月份的利率决议和新闻发布会,维持联邦基金利率在2.25%-2.50%不变,符合市场预期。同时美联储…...

    2024/5/7 9:45:25
  7. 【外汇周评】靓丽非农不及疲软通胀影响

    原标题:【外汇周评】靓丽非农不及疲软通胀影响在刚结束的周五,美国方面公布了新一期的非农就业数据,大幅好于前值和预期,新增就业重新回到20万以上。具体数据: 美国4月非农就业人口变动 26.3万人,预期 19万人,前值 19.6万人。 美国4月失业率 3.6%,预期 3.8%,前值 3…...

    2024/5/4 23:54:56
  8. 【原油贵金属早评】库存继续增加,油价收跌

    原标题:【原油贵金属早评】库存继续增加,油价收跌周三清晨公布美国当周API原油库存数据,上周原油库存增加281万桶至4.692亿桶,增幅超过预期的74.4万桶。且有消息人士称,沙特阿美据悉将于6月向亚洲炼油厂额外出售更多原油,印度炼油商预计将每日获得至多20万桶的额外原油供…...

    2024/5/7 14:25:14
  9. 【外汇早评】日本央行会议纪要不改日元强势

    原标题:【外汇早评】日本央行会议纪要不改日元强势近两日日元大幅走强与近期市场风险情绪上升,避险资金回流日元有关,也与前一段时间的美日贸易谈判给日本缓冲期,日本方面对汇率问题也避免继续贬值有关。虽然今日早间日本央行公布的利率会议纪要仍然是支持宽松政策,但这符…...

    2024/5/4 23:54:56
  10. 【原油贵金属早评】欧佩克稳定市场,填补伊朗问题的影响

    原标题:【原油贵金属早评】欧佩克稳定市场,填补伊朗问题的影响近日伊朗局势升温,导致市场担忧影响原油供给,油价试图反弹。此时OPEC表态稳定市场。据消息人士透露,沙特6月石油出口料将低于700万桶/日,沙特已经收到石油消费国提出的6月份扩大出口的“适度要求”,沙特将满…...

    2024/5/4 23:55:05
  11. 【外汇早评】美欲与伊朗重谈协议

    原标题:【外汇早评】美欲与伊朗重谈协议美国对伊朗的制裁遭到伊朗的抗议,昨日伊朗方面提出将部分退出伊核协议。而此行为又遭到欧洲方面对伊朗的谴责和警告,伊朗外长昨日回应称,欧洲国家履行它们的义务,伊核协议就能保证存续。据传闻伊朗的导弹已经对准了以色列和美国的航…...

    2024/5/4 23:54:56
  12. 【原油贵金属早评】波动率飙升,市场情绪动荡

    原标题:【原油贵金属早评】波动率飙升,市场情绪动荡因中美贸易谈判不安情绪影响,金融市场各资产品种出现明显的波动。随着美国与中方开启第十一轮谈判之际,美国按照既定计划向中国2000亿商品征收25%的关税,市场情绪有所平复,已经开始接受这一事实。虽然波动率-恐慌指数VI…...

    2024/5/7 11:36:39
  13. 【原油贵金属周评】伊朗局势升温,黄金多头跃跃欲试

    原标题:【原油贵金属周评】伊朗局势升温,黄金多头跃跃欲试美国和伊朗的局势继续升温,市场风险情绪上升,避险黄金有向上突破阻力的迹象。原油方面稍显平稳,近期美国和OPEC加大供给及市场需求回落的影响,伊朗局势并未推升油价走强。近期中美贸易谈判摩擦再度升级,美国对中…...

    2024/5/4 23:54:56
  14. 【原油贵金属早评】市场情绪继续恶化,黄金上破

    原标题:【原油贵金属早评】市场情绪继续恶化,黄金上破周初中国针对于美国加征关税的进行的反制措施引发市场情绪的大幅波动,人民币汇率出现大幅的贬值动能,金融市场受到非常明显的冲击。尤其是波动率起来之后,对于股市的表现尤其不安。隔夜美国股市出现明显的下行走势,这…...

    2024/5/6 1:40:42
  15. 【外汇早评】美伊僵持,风险情绪继续升温

    原标题:【外汇早评】美伊僵持,风险情绪继续升温昨日沙特两艘油轮再次发生爆炸事件,导致波斯湾局势进一步恶化,市场担忧美伊可能会出现摩擦生火,避险品种获得支撑,黄金和日元大幅走强。美指受中美贸易问题影响而在低位震荡。继5月12日,四艘商船在阿联酋领海附近的阿曼湾、…...

    2024/5/4 23:54:56
  16. 【原油贵金属早评】贸易冲突导致需求低迷,油价弱势

    原标题:【原油贵金属早评】贸易冲突导致需求低迷,油价弱势近日虽然伊朗局势升温,中东地区几起油船被袭击事件影响,但油价并未走高,而是出于调整结构中。由于市场预期局势失控的可能性较低,而中美贸易问题导致的全球经济衰退风险更大,需求会持续低迷,因此油价调整压力较…...

    2024/5/8 20:48:49
  17. 氧生福地 玩美北湖(上)——为时光守候两千年

    原标题:氧生福地 玩美北湖(上)——为时光守候两千年一次说走就走的旅行,只有一张高铁票的距离~ 所以,湖南郴州,我来了~ 从广州南站出发,一个半小时就到达郴州西站了。在动车上,同时改票的南风兄和我居然被分到了一个车厢,所以一路非常愉快地聊了过来。 挺好,最起…...

    2024/5/7 9:26:26
  18. 氧生福地 玩美北湖(中)——永春梯田里的美与鲜

    原标题:氧生福地 玩美北湖(中)——永春梯田里的美与鲜一觉醒来,因为大家太爱“美”照,在柳毅山庄去寻找龙女而错过了早餐时间。近十点,向导坏坏还是带着饥肠辘辘的我们去吃郴州最富有盛名的“鱼头粉”。说这是“十二分推荐”,到郴州必吃的美食之一。 哇塞!那个味美香甜…...

    2024/5/4 23:54:56
  19. 氧生福地 玩美北湖(下)——奔跑吧骚年!

    原标题:氧生福地 玩美北湖(下)——奔跑吧骚年!让我们红尘做伴 活得潇潇洒洒 策马奔腾共享人世繁华 对酒当歌唱出心中喜悦 轰轰烈烈把握青春年华 让我们红尘做伴 活得潇潇洒洒 策马奔腾共享人世繁华 对酒当歌唱出心中喜悦 轰轰烈烈把握青春年华 啊……啊……啊 两…...

    2024/5/8 19:33:07
  20. 扒开伪装医用面膜,翻六倍价格宰客,小姐姐注意了!

    原标题:扒开伪装医用面膜,翻六倍价格宰客,小姐姐注意了!扒开伪装医用面膜,翻六倍价格宰客!当行业里的某一品项火爆了,就会有很多商家蹭热度,装逼忽悠,最近火爆朋友圈的医用面膜,被沾上了污点,到底怎么回事呢? “比普通面膜安全、效果好!痘痘、痘印、敏感肌都能用…...

    2024/5/5 8:13:33
  21. 「发现」铁皮石斛仙草之神奇功效用于医用面膜

    原标题:「发现」铁皮石斛仙草之神奇功效用于医用面膜丽彦妆铁皮石斛医用面膜|石斛多糖无菌修护补水贴19大优势: 1、铁皮石斛:自唐宋以来,一直被列为皇室贡品,铁皮石斛生于海拔1600米的悬崖峭壁之上,繁殖力差,产量极低,所以古代仅供皇室、贵族享用 2、铁皮石斛自古民间…...

    2024/5/8 20:38:49
  22. 丽彦妆\医用面膜\冷敷贴轻奢医学护肤引导者

    原标题:丽彦妆\医用面膜\冷敷贴轻奢医学护肤引导者【公司简介】 广州华彬企业隶属香港华彬集团有限公司,专注美业21年,其旗下品牌: 「圣茵美」私密荷尔蒙抗衰,产后修复 「圣仪轩」私密荷尔蒙抗衰,产后修复 「花茵莳」私密荷尔蒙抗衰,产后修复 「丽彦妆」专注医学护…...

    2024/5/4 23:54:58
  23. 广州械字号面膜生产厂家OEM/ODM4项须知!

    原标题:广州械字号面膜生产厂家OEM/ODM4项须知!广州械字号面膜生产厂家OEM/ODM流程及注意事项解读: 械字号医用面膜,其实在我国并没有严格的定义,通常我们说的医美面膜指的应该是一种「医用敷料」,也就是说,医用面膜其实算作「医疗器械」的一种,又称「医用冷敷贴」。 …...

    2024/5/6 21:42:42
  24. 械字号医用眼膜缓解用眼过度到底有无作用?

    原标题:械字号医用眼膜缓解用眼过度到底有无作用?医用眼膜/械字号眼膜/医用冷敷眼贴 凝胶层为亲水高分子材料,含70%以上的水分。体表皮肤温度传导到本产品的凝胶层,热量被凝胶内水分子吸收,通过水分的蒸发带走大量的热量,可迅速地降低体表皮肤局部温度,减轻局部皮肤的灼…...

    2024/5/4 23:54:56
  25. 配置失败还原请勿关闭计算机,电脑开机屏幕上面显示,配置失败还原更改 请勿关闭计算机 开不了机 这个问题怎么办...

    解析如下&#xff1a;1、长按电脑电源键直至关机&#xff0c;然后再按一次电源健重启电脑&#xff0c;按F8健进入安全模式2、安全模式下进入Windows系统桌面后&#xff0c;按住“winR”打开运行窗口&#xff0c;输入“services.msc”打开服务设置3、在服务界面&#xff0c;选中…...

    2022/11/19 21:17:18
  26. 错误使用 reshape要执行 RESHAPE,请勿更改元素数目。

    %读入6幅图像&#xff08;每一幅图像的大小是564*564&#xff09; f1 imread(WashingtonDC_Band1_564.tif); subplot(3,2,1),imshow(f1); f2 imread(WashingtonDC_Band2_564.tif); subplot(3,2,2),imshow(f2); f3 imread(WashingtonDC_Band3_564.tif); subplot(3,2,3),imsho…...

    2022/11/19 21:17:16
  27. 配置 已完成 请勿关闭计算机,win7系统关机提示“配置Windows Update已完成30%请勿关闭计算机...

    win7系统关机提示“配置Windows Update已完成30%请勿关闭计算机”问题的解决方法在win7系统关机时如果有升级系统的或者其他需要会直接进入一个 等待界面&#xff0c;在等待界面中我们需要等待操作结束才能关机&#xff0c;虽然这比较麻烦&#xff0c;但是对系统进行配置和升级…...

    2022/11/19 21:17:15
  28. 台式电脑显示配置100%请勿关闭计算机,“准备配置windows 请勿关闭计算机”的解决方法...

    有不少用户在重装Win7系统或更新系统后会遇到“准备配置windows&#xff0c;请勿关闭计算机”的提示&#xff0c;要过很久才能进入系统&#xff0c;有的用户甚至几个小时也无法进入&#xff0c;下面就教大家这个问题的解决方法。第一种方法&#xff1a;我们首先在左下角的“开始…...

    2022/11/19 21:17:14
  29. win7 正在配置 请勿关闭计算机,怎么办Win7开机显示正在配置Windows Update请勿关机...

    置信有很多用户都跟小编一样遇到过这样的问题&#xff0c;电脑时发现开机屏幕显现“正在配置Windows Update&#xff0c;请勿关机”(如下图所示)&#xff0c;而且还需求等大约5分钟才干进入系统。这是怎样回事呢&#xff1f;一切都是正常操作的&#xff0c;为什么开时机呈现“正…...

    2022/11/19 21:17:13
  30. 准备配置windows 请勿关闭计算机 蓝屏,Win7开机总是出现提示“配置Windows请勿关机”...

    Win7系统开机启动时总是出现“配置Windows请勿关机”的提示&#xff0c;没过几秒后电脑自动重启&#xff0c;每次开机都这样无法进入系统&#xff0c;此时碰到这种现象的用户就可以使用以下5种方法解决问题。方法一&#xff1a;开机按下F8&#xff0c;在出现的Windows高级启动选…...

    2022/11/19 21:17:12
  31. 准备windows请勿关闭计算机要多久,windows10系统提示正在准备windows请勿关闭计算机怎么办...

    有不少windows10系统用户反映说碰到这样一个情况&#xff0c;就是电脑提示正在准备windows请勿关闭计算机&#xff0c;碰到这样的问题该怎么解决呢&#xff0c;现在小编就给大家分享一下windows10系统提示正在准备windows请勿关闭计算机的具体第一种方法&#xff1a;1、2、依次…...

    2022/11/19 21:17:11
  32. 配置 已完成 请勿关闭计算机,win7系统关机提示“配置Windows Update已完成30%请勿关闭计算机”的解决方法...

    今天和大家分享一下win7系统重装了Win7旗舰版系统后&#xff0c;每次关机的时候桌面上都会显示一个“配置Windows Update的界面&#xff0c;提示请勿关闭计算机”&#xff0c;每次停留好几分钟才能正常关机&#xff0c;导致什么情况引起的呢&#xff1f;出现配置Windows Update…...

    2022/11/19 21:17:10
  33. 电脑桌面一直是清理请关闭计算机,windows7一直卡在清理 请勿关闭计算机-win7清理请勿关机,win7配置更新35%不动...

    只能是等着&#xff0c;别无他法。说是卡着如果你看硬盘灯应该在读写。如果从 Win 10 无法正常回滚&#xff0c;只能是考虑备份数据后重装系统了。解决来方案一&#xff1a;管理员运行cmd&#xff1a;net stop WuAuServcd %windir%ren SoftwareDistribution SDoldnet start WuA…...

    2022/11/19 21:17:09
  34. 计算机配置更新不起,电脑提示“配置Windows Update请勿关闭计算机”怎么办?

    原标题&#xff1a;电脑提示“配置Windows Update请勿关闭计算机”怎么办&#xff1f;win7系统中在开机与关闭的时候总是显示“配置windows update请勿关闭计算机”相信有不少朋友都曾遇到过一次两次还能忍但经常遇到就叫人感到心烦了遇到这种问题怎么办呢&#xff1f;一般的方…...

    2022/11/19 21:17:08
  35. 计算机正在配置无法关机,关机提示 windows7 正在配置windows 请勿关闭计算机 ,然后等了一晚上也没有关掉。现在电脑无法正常关机...

    关机提示 windows7 正在配置windows 请勿关闭计算机 &#xff0c;然后等了一晚上也没有关掉。现在电脑无法正常关机以下文字资料是由(历史新知网www.lishixinzhi.com)小编为大家搜集整理后发布的内容&#xff0c;让我们赶快一起来看一下吧&#xff01;关机提示 windows7 正在配…...

    2022/11/19 21:17:05
  36. 钉钉提示请勿通过开发者调试模式_钉钉请勿通过开发者调试模式是真的吗好不好用...

    钉钉请勿通过开发者调试模式是真的吗好不好用 更新时间:2020-04-20 22:24:19 浏览次数:729次 区域: 南阳 > 卧龙 列举网提醒您:为保障您的权益,请不要提前支付任何费用! 虚拟位置外设器!!轨迹模拟&虚拟位置外设神器 专业用于:钉钉,外勤365,红圈通,企业微信和…...

    2022/11/19 21:17:05
  37. 配置失败还原请勿关闭计算机怎么办,win7系统出现“配置windows update失败 还原更改 请勿关闭计算机”,长时间没反应,无法进入系统的解决方案...

    前几天班里有位学生电脑(windows 7系统)出问题了&#xff0c;具体表现是开机时一直停留在“配置windows update失败 还原更改 请勿关闭计算机”这个界面&#xff0c;长时间没反应&#xff0c;无法进入系统。这个问题原来帮其他同学也解决过&#xff0c;网上搜了不少资料&#x…...

    2022/11/19 21:17:04
  38. 一个电脑无法关闭计算机你应该怎么办,电脑显示“清理请勿关闭计算机”怎么办?...

    本文为你提供了3个有效解决电脑显示“清理请勿关闭计算机”问题的方法&#xff0c;并在最后教给你1种保护系统安全的好方法&#xff0c;一起来看看&#xff01;电脑出现“清理请勿关闭计算机”在Windows 7(SP1)和Windows Server 2008 R2 SP1中&#xff0c;添加了1个新功能在“磁…...

    2022/11/19 21:17:03
  39. 请勿关闭计算机还原更改要多久,电脑显示:配置windows更新失败,正在还原更改,请勿关闭计算机怎么办...

    许多用户在长期不使用电脑的时候&#xff0c;开启电脑发现电脑显示&#xff1a;配置windows更新失败&#xff0c;正在还原更改&#xff0c;请勿关闭计算机。。.这要怎么办呢&#xff1f;下面小编就带着大家一起看看吧&#xff01;如果能够正常进入系统&#xff0c;建议您暂时移…...

    2022/11/19 21:17:02
  40. 还原更改请勿关闭计算机 要多久,配置windows update失败 还原更改 请勿关闭计算机,电脑开机后一直显示以...

    配置windows update失败 还原更改 请勿关闭计算机&#xff0c;电脑开机后一直显示以以下文字资料是由(历史新知网www.lishixinzhi.com)小编为大家搜集整理后发布的内容&#xff0c;让我们赶快一起来看一下吧&#xff01;配置windows update失败 还原更改 请勿关闭计算机&#x…...

    2022/11/19 21:17:01
  41. 电脑配置中请勿关闭计算机怎么办,准备配置windows请勿关闭计算机一直显示怎么办【图解】...

    不知道大家有没有遇到过这样的一个问题&#xff0c;就是我们的win7系统在关机的时候&#xff0c;总是喜欢显示“准备配置windows&#xff0c;请勿关机”这样的一个页面&#xff0c;没有什么大碍&#xff0c;但是如果一直等着的话就要两个小时甚至更久都关不了机&#xff0c;非常…...

    2022/11/19 21:17:00
  42. 正在准备配置请勿关闭计算机,正在准备配置windows请勿关闭计算机时间长了解决教程...

    当电脑出现正在准备配置windows请勿关闭计算机时&#xff0c;一般是您正对windows进行升级&#xff0c;但是这个要是长时间没有反应&#xff0c;我们不能再傻等下去了。可能是电脑出了别的问题了&#xff0c;来看看教程的说法。正在准备配置windows请勿关闭计算机时间长了方法一…...

    2022/11/19 21:16:59
  43. 配置失败还原请勿关闭计算机,配置Windows Update失败,还原更改请勿关闭计算机...

    我们使用电脑的过程中有时会遇到这种情况&#xff0c;当我们打开电脑之后&#xff0c;发现一直停留在一个界面&#xff1a;“配置Windows Update失败&#xff0c;还原更改请勿关闭计算机”&#xff0c;等了许久还是无法进入系统。如果我们遇到此类问题应该如何解决呢&#xff0…...

    2022/11/19 21:16:58
  44. 如何在iPhone上关闭“请勿打扰”

    Apple’s “Do Not Disturb While Driving” is a potentially lifesaving iPhone feature, but it doesn’t always turn on automatically at the appropriate time. For example, you might be a passenger in a moving car, but your iPhone may think you’re the one dri…...

    2022/11/19 21:16:57