公众号：爱写bug

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define N 100typedef struct Books {char num[20];char name[20];char author[20];int price;int total;char introduce[50];}BK;
BK bk[N];void inputBk(BK *p, int i);
void deleteBK(char bkNum[]);
void judge(int jdg);
void sortInfo(BK bk[], int n);
void swapInfo(BK *p, BK *q);
void outputInfo(BK *p);
void updateInfo(char bkNum[]);
void serchInfo(char bkNum[]);int i, tmp=0, flag = 1, menu;
void main() {while (flag) {do {printf("############################################菜单栏######################################\n");printf("请输入想要实现的功能选项\n");printf("1、录入新书籍\n");printf("2、删除指定书籍\n");printf("3、价格从小到大排序书籍\n");printf("4、修改指定书籍\n");printf("5、查询指定书籍\n");printf("6、退出菜单栏\n");printf("############################################菜单栏######################################\n");printf("请输入选项：");scanf_s("%d", &menu);} while (menu>6 || menu<1);judge(menu);}getchar(); getchar(); getchar();
}void judge(int jdg) {int n;char bkNum[20];switch (jdg) {case 1:printf("请输入要录入书籍的个数：");scanf_s("%d", &n);for (i = tmp; i<n + tmp; i++) {inputBk(&bk[i], i);}tmp = n + tmp;//tmp很关键，记录数量避免多次添加，前面数据被覆盖break;case 2:printf("请输入要删除的书号：");scanf("%s", bkNum);deleteBK(bkNum);break;case 3:sortInfo(bk,tmp);printf("排序后：\n");for (i = 0; i < tmp; i++) {outputInfo(&bk[i]);}break;case 4:printf("请输入要修改的书号：");scanf("%s", bkNum);updateInfo(bkNum);break;case 5:printf("请输入要查询的书号：");scanf("%s", bkNum);serchInfo(bkNum);break;case 6:flag = 0;break;}}void inputBk(BK *p, int i) {printf("请录入第%d本书：\n",i+1);printf("请输入书号：");scanf("%s",p->num);printf("请输入书名：");scanf("%s", p->name);printf("请输入作者：");scanf("%s", p->author);printf("请输入单价：");scanf_s("%d", &(p->price));printf("请输入数量：");scanf_s("%d", &(p->total));printf("请输入简介：");scanf("%s", p->introduce);}
void deleteBK(char bkNum[]) {int assert=0;for (i = 0; i<tmp; i++) {if (strcmp(bkNum, bk[i].num) == 0) {for (int j = i; j<tmp - 1; j++) {strcpy(bk[j].num ,bk[j + 1].num);strcpy(bk[j].name, bk[j + 1].name);strcpy(bk[j].author, bk[j + 1].author);strcpy(bk[j].introduce, bk[j + 1].introduce);bk[j].price = bk[j].price;bk[j].total = bk[j].total;tmp = tmp - 1;//记录tmp数量assert = 1;break;}}}if (assert) {printf("已经删除该书籍信息\n");}else {printf("没有找到该书籍\n");}}
void sortInfo(BK bk[],int n) {int i, j;for (i = 0; i < n - 1;i++) {for (j = 0; j < n - 1-i;j++) {if (bk[j].price > bk[j+1].price) {swapInfo(&bk[j],&bk[j+1]);}}}}
void swapInfo(BK *p,BK *q) {BK trmp;trmp = *p; *p = *q; *q = trmp;
}
void outputInfo(BK *p) {printf("%s\t%s\t%s\t%d\t%d\t%s\n", p->num, p->name, p->author, p->price, p->total, p->introduce);}void updateInfo(char bkNum[]) {int assert = 0;for (i = 0; i<tmp; i++) {if (strcmp(bkNum, bk[i].num) == 0) {printf("请修改图书馆第%d本书：\n", i + 1);printf("请修改书号：");scanf("%s", bk[i].num);printf("请修改书名：");scanf("%s", bk[i].name);printf("请修改作者：");scanf("%s", bk[i].author);printf("请修改单价：");scanf_s("%d", &(bk[i].price));printf("请修改数量：");scanf_s("%d", &(bk[i].total));printf("请修改简介：");scanf("%s", bk[i].introduce);assert = 1;break;}}if (assert) {printf("已经修改该书籍信息\n");}else {printf("没有找到该名称书籍\n");}}
void serchInfo(char bkNum[]) {int assert = 0;for (i = 0; i<tmp; i++) {if (strcmp(bkNum, bk[i].num) == 0) {outputInfo(&bk[i]);assert = 1;break;}}if (assert) {printf("已经查询到该书籍信息\n");}else {printf("没有找到该名称的书籍\n");}}