2022/02/11   //舒适的环境很难培养出坚强的品格，被安排好的人生也很难做出伟大的事业package mainimport ("encoding/json""fmt"
)type Monster struct {Name     string `json:"name"`Age      intBirthday stringSal      float64Skill    string
}/*func Marshal(v interface{}) ([]byte, error)Marshal函数返回v的json编码。反序列化一个json字符串时，确保反序列化后的数据类型和原来序列化前的数据类型一致
*/func testStruct() {/*1.把结构体序列化*/monster := Monster{Name:     "牛魔王",Age:      500,Birthday: "20220211",Sal:      1000.0,Skill:    "牛魔拳",}data, err := json.Marshal(monster)if err != nil {fmt.Println("序列化错误", err)}fmt.Println(string(data))//data是序列化的格式，接下来把data反序列化/*2.把结构体反序列化*/var monster2 Monstererr2 := json.Unmarshal(data, &monster2)if err2 != nil {fmt.Println("反序列化失败", err)return}fmt.Println("反序列化成功")fmt.Println(monster2)
}func testMap() {/*2.将map序列化*///var myMap map[string]interface{}myMap := make(map[string]interface{})myMap["name"] = "红孩儿"myMap["age"] = 100myMap["Birthday"] = "20000"myMap["Sal"] = 100.5data, err := json.Marshal(myMap)if err != nil {fmt.Println("序列化错误", err)}fmt.Println(string(data))//data是序列化的格式，接下来把data反序列化/*2.把map反序列化反序列化不需要make() 因为Unmarshal()已经封装好了可以查看go手册 Unmarshal()方法*/var myMap2 map[string]interface{}err2 := json.Unmarshal(data, &myMap2)if err2 != nil {fmt.Println("反序列化失败", err)return}fmt.Println("反序列化成功")fmt.Println(myMap2)
}func testSlice() {/*3.将切片序列化*/var slice []map[string]interface{}map1 := make(map[string]interface{})map1["name"] = "map1"map1["age"] = 10map1["Birthday"] = "1002"map1["Sal"] = "map1~"map2 := make(map[string]interface{})map2["name"] = "map2"map2["age"] = 10map2["Birthday"] = [2]string{"1003", "qweqw"}map2["Sal"] = "map1~"slice = append(slice, map1)slice = append(slice, map2)data, err := json.Marshal(slice)if err != nil {fmt.Println("序列化错误", err)}fmt.Println(string(data))/*3.将切片反序列化*/var slice2 []map[string]interface{}err2 := json.Unmarshal(data, &slice2)if err2 != nil {fmt.Println("反序列化失败", err)return}fmt.Println("反序列化成功")fmt.Println(slice2)
}func main() {testStruct()testMap()testSlice()
}

//cal_test.go包package mainimport ("testing"
)//编写测试用例，去测试addUpper()是否正确
//命令台指令补充//直接测试所有文件函数//	go test -v//测试单个函数//go test -v  -run  测试函数名字//测试单个文件//go test -v  xxx_test.go  xxx.gofunc TestAddUpper(t *testing.T) {//调用res := addUpper(11)if res != 55 {t.Fatalf("结果错误，期望值%v, 实际%v", 55, res)}//如果正确输出日志t.Logf("执行正确!")
}func TestGetSum(t *testing.T) {//调用res := getSum(11, 12)if res != 2223 {t.Fatalf("结果错误，期望值%v, 实际%v", 23, res)}//如果正确输出日志t.Logf("执行正确!")//测试单个函数//go test -v  -run  测试函数名字//测试单个文件//go test -v  xxx_test.go  xxx.go
}

//cal.go包package mainfunc addUpper(n int) int {res := 0for i := 1; i <= n-1; i++ {res += i}return res
}func getSum(n1 int, n2 int) int {return n1 + n2
}