C语言实现电话簿项目

#include <stdio.h>#include <stdlib.h>#include <assert.h>#include <string.h>#define ADDRESS_INFOS_MAX 200typedef struct AddressInfo{ char name[1024]; char phone[1024];}AddressInfo;typedef struct AddressBook{ AddressInfo* infos; int size; int capacity;//容量}AddressBook;AddressBook g_addr_book;//初始化void Init(AddressBook* addr_book){ assert(addr_book != NULL); addr_book->size = 0; addr_book->capacity = 10; addr_book->infos = (AddressInfo*)malloc(sizeof(AddressInfo) * addr_book->capacity); return;}//菜单int Menu(){ printf("===========================/n"); printf("1、新增/n"); printf("2、删除/n"); printf("3、修改/n"); printf("4、查找/n"); printf("5、排序/n"); printf("6、显示全部/n"); printf("7、删除全部/n"); printf("0、退出/n"); printf("===========================/n"); int choice; scanf("%d", &choice); return choice;}//扩容void Realloc(AddressBook* addr_book){ assert(addr_book != NULL); //1、扩大capacity的取值 addr_book->capacity *= 2; //2、申请一个更大的内存 AddressInfo* old_infos = addr_book->infos; addr_book->infos = (AddressInfo*)malloc(sizeof(AddressInfo) * addr_book->capacity); //3、将原有内存中的数据复制过来 for(int i = 0; i < addr_book->size; i++) {  addr_book->infos[i] = old_infos[i]; } //4、释放原有的内存 free(old_infos);  //此处每次扩容阔多少由我们自己定制 printf("扩容成功！/n");}//新增void AddAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); if(addr_book->size >= addr_book->capacity) {  printf("空间已满进行扩容！/n");  Realloc(addr_book);//扩容 } printf("请输入联系人信息！/n"); AddressInfo* p = &addr_book->infos[addr_book->size]; printf("请输入联系人姓名："); scanf("%s", p->name); printf("请输入联系人电话："); scanf("%s", p->phone); addr_book->size++; printf("添加成功！/n"); return;}//删除void DelAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); int id; printf("请输入要删除的联系人序号："); scanf("%d", &id); if(id < 0 || id >= addr_book->size) {  printf("输入需要有误！/n");  return; } printf("删除的序号为[%d]，确认删除请输入Y:", id); char sure[1024] = {0}; scanf("%s", sure); if(strcmp(sure, "Y") != 0) {  printf("删除中止！/n");  return; } AddressInfo* from = &addr_book->infos[addr_book->size - 1]; AddressInfo* to = &addr_book->infos[0]; *to = *from; addr_book->size--; return;}//修改void ModifyAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); printf("修改联系人！/n"); printf("请输入需要修改的联系人序号："); int id = 0; scanf("%d", &id); if(id < 0 || id >= addr_book->size) {  printf("输入序号错误！/n");  return; } AddressInfo* p = &addr_book->infos[id]; char input[1024] = {0}; printf("请输入要修改的姓名："); scanf("%s", input); if(strcmp(input, "#") != 0) {  strcpy(p->name, input); } printf("请输入要修改的电话："); scanf("%s", input); if(strcmp(input, "#") != 0) {  strcpy(p->phone, input); } printf("修改成功！/n"); return;}//查找void FindAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); printf("开始进行查找！/n"); printf("请输入要查找的姓名："); char name[1024] = {0}; scanf("%s", name); int count = 0; for(int i = 0; i < addr_book->size; i++) {  AddressInfo* p = &addr_book->infos[i];  if(strcmp(name, p->name) == 0)  {   printf("[%d] %s/t %s", i, p->name, p->phone);   ++count;  } } return;}//排序void SortAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); for(int i = 0; i < addr_book->size - 1; i++)//冒泡排序 {  for(int j = 0; j < addr_book->size - i - 1; j++)  {   if(strcmp(addr_book->infos[j].name, addr_book->infos[j + 1].name) > 0)   {    AddressInfo temp = addr_book->infos[j];    addr_book->infos[j] = addr_book->infos[j + 1];    addr_book->infos[j + 1] = temp;   }  } } printf("排序完成！/n");}//打印全部void PrintAllAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); printf("显示所有联系人！/n"); for(int i = 0; i < addr_book->size; i++) {  AddressInfo* p = &addr_book->infos[i];  printf("[%d] %s/t%s/n", i, p->name, p->phone); } printf("共显示了%d条数据！/n", addr_book->size); return;}//清除全部void ClearAllAddressBook(AddressBook* addr_book){ assert(addr_book != NULL); printf("确定要清除全部信息么，确定请输入Y："); char sure[1024] = {0}; scanf("%s", sure); if(strcmp(sure, "Y") != 0) {  printf("清除已经取消！/n");  return; } addr_book->size = 0; return;}//文件读取size_t Read(AddressBook* addr_book){ FILE* fp = fopen("./AddrBookData.txt", "r"); if(fp == NULL) {  fp = fopen("./AddrBookData.txt", "w+"); } size_t n = 0; char* buf[1024] = { 0 }; while(fgets(buf, sizeof(buf), fp) != NULL) {  if(addr_book->size >= addr_book->capacity)  {   Realloc(addr_book);//扩容  }  AddressInfo* p = &addr_book->infos[addr_book->size];  sscanf(buf, "%s %s", p->name, p->phone);  addr_book->size++; } fclose(fp); n = addr_book->size; printf("读取了%lu条数据！/n", n); return n;}//文件存储size_t Save(AddressBook* addr_book){ FILE* fp = fopen("./AddrBookData.txt", "w"); size_t n = 0; for(int i = 0; i < addr_book->size; i++) {  fprintf(fp, "%s %s/n", addr_book->infos[i].name, addr_book->infos[i].phone);  n++; } fclose(fp); printf("存储了%lu条数据！/n", n); return n;}int main(){ Init(&g_addr_book); Read(&g_addr_book); typedef void (*ptr_func)(AddressBook*); ptr_func table[] = {  AddAddressBook,  DelAddressBook,  ModifyAddressBook,  FindAddressBook,  SortAddressBook,  PrintAllAddressBook,  ClearAllAddressBook, }; while(1) {  int choice = Menu();  if(choice == 0)  {   printf("使用完毕，退出！/n");   Save(&g_addr_book);   return 0;  }  table[choice - 1](&g_addr_book); }}