文件cotact.c

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include "contact.h"
/*初始化*/
void InitContact(pContact pc)
{pc->count = 0;memset(pc->data, 0, sizeof(pc->data));
}/*增加數據*/
void AddContact(pContact pc)
{if (pc->count < 1000){printf("請輸入名字>");scanf("%s", pc->data[pc->count].name);printf("請輸入年齡>");scanf("%d", &pc->data[pc->count].age);printf("請輸入性別>");scanf("%s", pc->data[pc->count].sex);pc->count++;}else{printf("存不下了");return;}
}/*展示*/
void ShowContact(pContact pc)
{printf("姓名：             年齡：     性別：\n");if (pc->count != 0){for (int i = 0; i < pc->count; i++){if (pc->data[i].age != 0){printf("%d|%-8s%11d%11s\n", i,pc->data[i].name,pc->data[i].age,pc->data[i].sex);}}}else{printf("通訊沒有號碼\n");return;}
}/*刪除*/
void DelContact(pContact pc)
{printf("請輸入要刪除的編號");int i = 0,num;scanf("%d", &num);for (i = num; i < pc->count; i++){pc->data[i] =  pc->data[i +1];}
}/*判斷輸入的名字是不是重復,如果重復就刪除*/
void justice(pContact pc)
{for (int i = 0; i < pc->count-1; i++){if(!strcmp(pc->data[pc->count - 1].name , pc->data[i].name)){printf("\n非法輸入\n");pc->data[pc->count -1] = pc->data[pc->count];}}
}/*比較*/
char compare(const void * a, const void * b)
{return (*(char*)a+1 - *(char*)b);
}void Sort(pContact pc)
{int i;qsort (pc, pc->count, sizeof(people), compare);for (i=0; i<pc->count;i++)printf("%d|%-8s%8d%11s\n", i,pc->data[i].name, pc->data[i].age, pc->data[i].sex);return;
}/*查找*/
int search_son(pContact pc,char *name)
{int i, j;for (i = 0; i < pc->count; i++){//if (name == pc->data->name[i])//這樣的比較不行，if (!strcmp(name, pc->data[i].name)){return i;}}return -1;
}
void Search(pContact pc)
{int i = 0;char name[20];//要給一個大小，要不然一直讀取位置時發生訪問沖突printf("name>");scanf("%s", &name);i = search_son(pc,name);if (i >= 0){printf("找到了，嗚啦啦啦啦啦啦啦啦啦啦啦啦啦啦啦！\n");printf("%d|%-8s%8d%11s\n",i,pc->data[i].name,pc->data[i].age,pc->data[i].sex);printf("******************************************\n");}else{printf("Can't find it\n");}return;
}

main.c

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include "contact.h"void menu()
{printf("*************************\n");printf("**1.add     2.show*******\n");printf("**3.search  4.delete*****\n");printf("**5.sort    0.exit*******\n");printf("*************************\n");
}int main()
{int input = 0;Contact my_con;InitContact(&my_con);do {menu();printf("please chose");scanf("%d", &input);//運行第二遍是輸入字母默認為1switch (input){case ADD:AddContact(&my_con);justice(&my_con);break;case SHOW:ShowContact(&my_con);break;case DEL:DelContact(&my_con);break;case EXIT:break;case SEARCH:Search(&my_con);break;case SORT:Sort(&my_con);break;default :fflush(stdin);fflush(stdout);break;}} while (input);system("pause");return 0;
}

contact.h

#ifndef __CONTACT_H__
#define __CONTACT_H__/*
這個順序就是switch()的順序，注意逗號不是分號，最后一個不寫符號
*/
enum OPTION
{EXIT,ADD,SHOW,SEARCH,DEL,SORT
};#define MAX_NAME 20
typedef struct PeoInfo
{char name[MAX_NAME];int age;char sex[4];
}people;typedef struct Contact
{people data[1000];int count;
}Contact,*pContact;void AddContact(pContact pc);
void InitContact(pContact pc);
void ShowContact(pContact pc);
void DelContact(pContact pc);
void justice(pContact pc);
void Search(pContact pc);
void Sort(pContact pc);
#endif // !__CONTACT_H__