通讯管理系统

#include <stdio.h> #include <stdlib.h>//动态内存分配 #include <string.h> typedef struct Contact{ int id; char name[100]; char phone[100]; char email[100]; char group[100]; struct Contact*next; } Contact; //定义联系人结构体 typedef struct{ Contact*head; int count; int next_id; } AddressBook; //定义通讯录管理结构体 void initAddressBook(AddressBook*book){ book->head = NULL; book->count = 0; book->next_id = 1; } //初始化通讯录 void printMenu(){ printf("\n======================\n"); printf("\n====通讯录管理系统====\n"); printf("\n======================\n"); printf("\n======请选择操作======\n"); printf("1.添加联系人\n"); printf("2.显示联系人\n"); printf("3.搜索联系人\n"); printf("4.修改联系人\n"); printf("5.删除联系人\n"); printf("6.分组管理联系人\n"); printf("7.导出数据到文件 \n"); printf("8.导入数据\n"); printf("0.退出\n"); printf("\n请输入选项："); } //打印菜单 void addContact(AddressBook*book){ printf("\n======添加联系人======\n"); Contact*newContact = (Contact*)malloc(sizeof(Contact)); if(newContact == NULL){ printf("内存分配失效！\n"); return; }//申请内存空间 newContact->id = book->next_id; book->next_id++;//给联系人编号 printf("请输入姓名："); scanf("%s",newContact->name); printf("请输入电话："); scanf("%s",newContact->phone); printf("请输入邮箱："); scanf("%s",newContact->email); printf("请输入分组："); scanf("%s",newContact->group);//获取用户输入 newContact->next = book->head; book->head = newContact; book->count++; printf("\n已成功添加联系人！ID：%d\n",newContact->id); } //添加联系人 void displayAllContacts(AddressBook*book){ printf("\n===所有联系人%d人===\n",book->count); if(book->count == 0) printf("通讯录为空\n"); else{ Contact*current = book->head; printf("ID\t姓名\t\t电话\t\t邮箱\t\t分组\n"); while(current!=NULL){ printf("%d\t%s\t\t%s\t\t%s\t\t%s\n", current->id,current->name,current->phone,current->email,current->group); current = current->next; } } } //显示所有联系人 void searchContact(AddressBook*book) { printf("\n====搜索联系人====\n"); printf("1.姓名搜索\n"); printf("2.电话搜索\n"); printf("3.分组搜索\n"); printf("请选择搜索方式："); int choice; scanf("%d",&choice); char keyword[100]; printf("请输入关键词:"); scanf("%s",keyword); Contact*current = book->head; int found = 0; while(current!=NULL){ int match = 0; switch(choice){ case 1: if(strstr(current->name,keyword)!=NULL){ match = 1; } break; case 2: if(strstr(current->phone,keyword)!=NULL){ match = 1; } break; case 3: if(strcmp(current->group,keyword)==0){ match = 1; } break; } if(match){ if(!found){ printf("ID\t姓名\t\t电话\t\t邮箱\t\t分组\n"); found = 1; } printf("%d\t%s\t\t%s\t\t%s\t\t%s\n", current->id,current->name,current->phone,current->email,current->group); } current = current->next; } if(!found){ printf("未匹配到相关联系人\n"); } } //搜索联系人 void deleteContact(AddressBook*book){ printf("\n====删除联系人====\n"); if(book->count == 0){ printf("通讯录为空！\n"); return; } printf("请输入要删除的联系人ID：\n"); int id; scanf("%d",&id); Contact*current = book->head; Contact*prev = NULL; while(current != NULL && current->id != id){ prev = current; current = current->next; } if(current == NULL){ printf("未找出ID为%d的联系人",id); } else{ if(prev == NULL){ book->head = current->next; } else{ prev->next = current->next; } free(current); book->count--; printf("联系人删除成功！"); } } //删除联系人 void exportfile(AddressBook*book){ printf("\n====导出数据====\n"); char filename[100]; printf("请输入文件名："); scanf("%s",filename); FILE*file = fopen(filename,"wb"); if(file == NULL){ printf("文件创建失败！\n"); return; } fwrite(&book->count,sizeof(int),1,file);//写入联系人数量 Contact*current = book->head; while(current!=NULL){ fwrite(current,sizeof(Contact),1,file); current = current->next;//写入每个联系人 } fclose(file); printf("数据导出成功！共导出%d个联系人到文件%s\n",book->count,filename); } //文件操作（导入、导出） int main(){ AddressBook book; initAddressBook(&book); int choice; do{ printMenu(); scanf("%d",&choice); switch(choice){ case 1: addContact(&book); break; case 2: displayAllContacts(&book); break; case 3: searchContact(&book); break; case 4: modifyContact(&book); break; case 5: deleteContact(&book); break; case 6: manageGroup(&book); break; case 7: exportfile(&book); break; case 8: importfile(&book); break; case 0: printf("\n退出系统ing...\n"); freeMemory(&book); break; default: printf("输入错误！请重新输入："); break; } }while(choice!=0) return 0; } //主函数（程序入口）