C语言简单通讯录

#include<stdio.h>#include<stdlib.h>#include<conio.h>#include<string.h>#include<windows.h>#define LEN sizeof(struct student)#define TITLE_T "╔═══════════════╗\n"#define NAME "║※姓名: 号码: ║\n"#define GESHI "║※%-15s %-11s ║\n"#define BOTTOM_B "╚═══════════════╝\n"#define NEIRONG stu[i].name,stu[i].numstruct student //定义通讯录结构体{char name[15]; //姓名char num[12]; //号码};struct student stu[50]; //定义结构体数组void in(); //添加联系人void show(); //显示联系人void order(); //按字符排序void del(); //删除联系人void modify(); //修改联系人void menu(); //主菜单void total(); //计算总人数void search(); //查找联系人void main() //主函数{system("title 某某某通讯录"); //设置cmd窗口标题system("mode con cols=85 lines=35"); //设置cmd窗口大小system("color 8A");int n;menu(); //执行菜单命令scanf("%d",&n); //输入选择功能的编号while(n){switch(n){case 1:in();break;case 2:show();break;case 3:search();break;case 4:del();break;case 5:modify();break;case 6:total();break;default:printf("输入编码有误!正在返回...");Sleep(3000);break;}menu(); //执行完功能再次显示菜单界面scanf("%d",&n);}}void menu() //自定义函数实现菜单功能{system("cls");system("date /t");system("time /t");printf("\n\n\n\n\n");printf("\t\t╔══════════某某某通讯录══════════╗\n");printf("\t\t║※0. 退出║\n");printf("\t\t║※1. 添加║\n");printf("\t\t║※2. 查看║\n");printf("\t\t║※3. 查找║\n");printf("\t\t║※4. 删除║\n");printf("\t\t║※5. 修改║\n");printf("\t\t║※6. 联系人总数║\n");printf("\t\t╚══════════════════════════╝\n\n");printf("\t\t请选择(0-6):");}void in() //添加联系人{int i,m=0; //m是记录的条数char ch[2];FILE *fp; //定义文件指针if((fp=fopen("data","ab+"))==NULL) //打开指定文件{printf("打开文件失败!正在返回...");Sleep(3000);return;}while(!feof(fp)){if(fread(&stu[m] ,LEN,1,fp)==1)m++; //统计当前记录条数}fclose(fp);if(m==0)printf("当前无记录!\n");else{system("cls");printf(TITLE_T);printf(NAME);for(i=0;i<m;i++)printf(GESHI,NEIRONG); //将信息按指定格式输出printf(BOTTOM_B);}if((fp=fopen("data","wb"))==NULL) //以只写二进制方式打开文件{printf("打开文件失败!正在返回...");Sleep(3000);return;}for(i=0;i<m;i++)fwrite(&stu[i] ,LEN,1,fp); //如果原来有记录，就将记录写入到磁盘文件中printf("是否添加?(y/n):");scanf("%s",ch);while(strcmp(ch,"Y")==0||strcmp(ch,"y")==0) //判断是否要添加联系人{back:printf("请输入联系人姓名：");scanf("%s",&stu[m].name); //输入姓名for(i=0;i<m;i++)if(strcmp(stu[i].name,stu[m].name)==0){printf("您输入的联系人已存在!\n");goto back;}printf("请输入联系人号码：");scanf("%s",stu[m].num);if(fwrite(&stu[m],LEN,1,fp)!=1) //将新录入的信息写入指定的磁盘文件{printf("保存'%s'失败!是否继续?(y/n):",stu[m].name);scanf("%s",ch);continue;}else{printf("添加'%s'成功!\n",stu[m].name);m++;}printf("是否继续?(y/n):"); //询问是否继续scanf("%s",ch);}printf("正在返回...");fclose(fp);order();return;}void show() //显示联系人{FILE *fp;int i,m=0;if((fp=fopen("data","ab+"))==NULL) //打开指定文件{printf("打开文件失败!正在返回...");Sleep(3000);return;}while(!feof(fp)){if(fread(&stu[m] ,LEN,1,fp)==1)m++;}fclose(fp);if(m>0){printf(TITLE_T);printf(NAME);for(i=0;i<m;i++)printf(GESHI,NEIRONG); //将信息按指定格式输出printf(BOTTOM_B);}elseprintf("当前无记录!");printf("按任意键返回...");getch();}void del() //删除联系人函数{FILE *fp;int i,j,m=0;char sname[15];char ch[2];if((fp=fopen("data","ab+"))==NULL){printf("不能打开文件,正在返回...\n");Sleep(3000);return;}while(!feof(fp))if(fread(&stu[m],LEN,1,fp)==1)m++;fclose(fp);if(m==0){printf("当前无记录!正在返回...\n");Sleep(3000);return;}printf("请输入联系人姓名:");scanf("%s",sname);for(i=0;i<m;i++)if(strcmp(sname,stu[i].name)==0)break;if(i==m){printf("找不到'%s'!正在返回...",sname);Sleep(3000);return;}printf("已找到'%s',是否删除?(y/n)",sname);scanf("%s",ch);if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0) //判断是否要进行删除{for(j=i;j<m;j++)stu[j]=stu[j+1]; //将后一个记录移到前一个记录的位置m--; //记录的总个数减1printf("删除'%s'成功!\n",sname);}if((fp=fopen("data","wb"))==NULL){printf("打开文件失败!正在返回...\n");Sleep(3000);return;}for(j=0;j<m;j++) //将更改后的记录重新写入指定的磁盘文件中if(fwrite(&stu[j] ,LEN,1,fp)!=1){printf("保存失败!正在返回...\n");Sleep(3000);}fclose(fp);show();}void search() //自定义查找函数{FILE *fp;int i,m=0;char sname[15];char ch[2];if((fp=fopen("data","ab+"))==NULL){printf("打开文件失败!正在返回...\n");Sleep(3000);return;}while(!feof(fp))if(fread(&stu[m],LEN,1,fp)==1)m++;fclose(fp);if(m==0){printf("当前无记录!正在返回...\n");Sleep(3000);return;}back1: printf("请输入联系人姓名:");scanf("%s",&sname);for(i=0;i<m;i++)if(strcmp(sname,stu[i].name)==0) //查找输入的号码是否在记录中{printf("已找到'%s',是否显示?(y/n)",sname);scanf("%s",ch);if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0){printf(TITLE_T);printf(NAME);printf(GESHI,NEIRONG); //将查找出的结果按指定格式输出printf(BOTTOM_B);}else{printf("正在返回...");Sleep(3000);return;}}if(i==m+1){printf("找不到'%s',是否继续?(y/n):",sname); //未找到要查找的信息scanf("%s",ch);while(strcmp(ch,"Y")==0||strcmp(ch,"y")==0) //判断是否要继续查找联系人goto back1;printf("正在返回...");Sleep(3000);return;}printf("按任意键返回...\n");getch();}void modify(){FILE *fp;int i,j,m=0;char sname[15];if((fp=fopen("data","ab+"))==NULL){printf("打开文件失败!正在返回...\n");Sleep(3000);return;}while(!feof(fp))if(fread(&stu[m],LEN,1,fp)==1)m++;fclose(fp);if(m==0){printf("当前无记录!正在返回...\n");Sleep(3000);return;}printf("请输入联系人姓名：\n");scanf("%s",&sname);for(i=0;i<m;i++)if(strcmp(sname,stu[i].name)==0) //检索记录中是否有要修改的信息break;if(i<m){printf("已找到'%s',请修改!\n",sname);printf("请输入联系人姓名：\n");scanf("%s",stu[i].name); //输入名字printf("请输入联系人号码：\n"); //输入号码scanf("%s",stu[i].num);}else{printf("找不到'%s'!正在返回...",sname);Sleep(3000);return;}if((fp=fopen("data","wb"))==NULL){printf("打开文件失败!正在返回...\n");Sleep(3000);return;}for(j=0;j<m;j++) //将新修改的信息写入指定的磁盘文件中{printf("保存'%s'失败!正在返回...",sname);Sleep(3000);return;}fclose(fp);order();show();}void total() //自定义计算总人数函数{FILE *fp;int m=0;if((fp=fopen("data","ab+"))==NULL){printf("打开文件失败!正在返回...\n");Sleep(3000);return;}while(!feof(fp))if(fread(&stu[m],LEN,1,fp)==1)m++;printf("此通讯录总共有%d名联系人!\n",m); //将统计的个数输出fclose(fp);printf("\n按任意键返回...\n");getch(); //输入任意键返回}void order() //自动排序函数{FILE *fp;struct student t; //用于交换信息int i=0,j=0,m=0; //i,j用于循环if((fp=fopen("data","ab+"))==NULL){printf("打开文件失败!正在返回...");Sleep(3000);return;}while(!feof(fp))m++;for(i=0;i<m-1;i++)for(j=i+1;j<m;j++) //双重循环实现联系人比较并交换if((strcmp(stu[i].name,stu[j].name))>0){t=stu[i];stu[i]=stu[j];stu[j]=t;}if((fp=fopen("data","wb"))==NULL){printf("文件打开失败!正在返回...\n");Sleep(3000);return;}for(i=0;i<m;i++) //将重新排好序的内容重新写入指定的磁盘文件中if(fwrite(&stu[i],LEN,1,fp)!=1){printf("排序失败!正在返回...");Sleep(3000);return;}fclose(fp);}。