C语言登陆系统+通讯录管理系统也适用其他管理系统

#include<stdio.h>#include<string.h>#include<conio.h>#include<stdlib.h>#defineboolint#definetrue1#definefalse0FILE*fp;structtongxunlu /*定义通讯录结构体变量*/(charxingming[20]; /*定义输入名字的数组*/chardianhua[20];/*定义输入电话号码的数组*/chardizhi[40];/*定义输入地址的数组*/charshouji[11];//手机号码charyouxiang[20];/*定义输入邮箱的数组*/charbeizhu[40];/*定义输入备注的数组*/charxuehao[10];/*定义输入学号的数组*/charyunying[20];}txl[100];//默认100个数据intn=0;//记录数据联系人数量intx,y,z,*p;charch;booljudge=true;typedefstruct(charuser[20];charcode[20];}USER;USERpe;voidzhuce();voiddenglu();voidpanduan(inti);voidzengjia();voidwritefile();voidredfile();voidwrite();voidcaozuo();voidchazhao();voidchazhao_xingming();voidchazhao_dianhua();voidxianshi();voidxiugai();voidxiugai_xingming();

voidxiugai_dianhua();voidshanchu();voidshanchu_quanbu();voidshanchu_dange();voidmain()printf(欢迎使用联系人管理系统\n");printf(欢迎使用联系人管理系统\n");printf（"\t\t1.用户登陆2.用户注册3.退出"）;ch=getch();if(ch=='1'||ch=='2')(switch(ch)(case'1':system("cls");denglu();break;case'2':system("cls");zhuce();break;default:printf("error!");))if(ch=='1'||ch=='2')writefile();elseprintf("\n\t\tByeA_A");exit(0);)voidcaozuo()(printf("\n\t\t1.添加联系人2.查找3.修改4.删除5.保存退出6.不保存退出7.保存并注销8.注销不保存")；ch=getch();switch(ch)(case'1':system("cls");zengjia();break;case'2':system("cls");chazhao();break;case'3':system("cls");xiugai();break;case'4':system("cls");shanchu();break;case'5':system("cls");writefile();break;case'6':printf("\n\t\tByeA_A");exit(0);case'7':printf("\n\t\t正在保存,请稍后......\n\t\t注销成功");writefile();break;case'8':fclose(fp);printf("\n\t\t注销成功");returnmain();break;default:printf("\n\t\terror!");returncaozuo();)

/*用户信息写入/*用户信息写入*/(if((fp=fopen(pe.user,"w"))==NULL)(printf("\n\t\t文件打开失败")；)elseif(fwrite(&pe,sizeof(USER),1,fp)!=1)(printf("\n\t\t写入文件错误")；))voidwritefile() /*联系人写入文件*/(inti；if((fp=fopen(pe.user,"a"))==NULL)(printf("\n\t\t文件打开失败")；)for(i=0;i<n;i++)(if(fwrite(&txl[i],sizeof(structtongxunlu),1,fp)!=1)(printf("\n\t\t写入文件错误!\n");))fclose(fp);/*关闭文件*/printf("\n\t ");printf("\n\t\t联系人文件已保存")；printf("\n\t\t谢谢使用，欢迎再次使用!\n");printf("\t\t如果对本软件有疑问，请给我们提出您的问题，我们将为您解答.\n");printf("\t\t我们的软件有不足之处请与我们反映，我们将努力改正!”)；printf("\n\t\t按任意键退出程序\n\t\t");exit(0);printf("\n\t ");)voidreadfile()(fseek(fp,0,2);if(ftell(fp)>0)(rewind(fp);fseek(fp,sizeof(USER),1);for(n=0;!feof(fp)&&fread(&txl[n],sizeof(structtongxunlu),1,fp);n++);)else(rewind(fp);fseek(fp,sizeof(USER),1);printf("\t\t联系人为空")；)printf("\n\t欢迎使用，按任意键进入");)voidzhuce()(chartemp[20],txt[100],cha;do(printf("\t\t\t\t用户注册")；printf("\n\t\t1.直接注册2.阅读用户手册”)；cha=getch();if(cha=='2')(if((fp=fopen("使用说明.txt","r"))==NULL)(printf("\n\t\t打开失败")；exit(0);)fread(txt,2,20,fp);printf("\n\t\t%s",txt);/*txt=fgets(txt,100,fp);printf("%s",txt);*/)printf("\n\t\t按任意键继续")；getch();system("cls");printf("\t\t\t\t用户注册")；printf("\n\t\t用户名:")；scanf("%s",pe.user);printf("\n\t\t密码:")；scanf("%s",pe.code);printf("\n\t\t确认密码:")；scanf("%s",temp);if(strcmp(pe.code,temp)!=0)printf("\n\t\t两次密码不一致，请重新输入");}while(strcmp(pe.code,temp)!=0);fp=fopen(pe.user,"r");if(fp==NULL)(fp=fopen(pe.user,"w");if(fp==NULL)(printf("\n\t注册失败\n");exit(0);)else{system("cls");printf("\n\t注册成功")；write();judge=false;denglu();))else{printf("\n\t该用户名已存在")；fclose(fp);printf("\n\t继续注册?(Y/N)");if(getch()=='Y')returnzhuce();elsereturndenglu();))voiddenglu(){charu[20],c[20],temp[20];printf("\n\t\t\t\t用户登录")；printf("\n\t\t用户名:")；scanf("%s",u);fp=fopen(u,"r+");temp[0]='0';if(fp==NULL){printf("\n\t\t用户不存在,请注册")；printf("\n\t\t1.注册2.重新登陆");temp[0]=getch();if(temp[0]=='1'){system("cls");zhuce();)elsereturndenglu();)do(if(judge==true)fread(&pe,sizeof(USER),1,fp);printf("\t\t密码:")；scanf("%s",c);if(strcmp(pe.code,c)!=0)(printf("\n\t\t密码错误(1.退出2.重新输入)”)；temp[0]=getch();printf("\n");if(temp[0]=='1')(fclose(fp);returnmain();))}while(temp[0]=='2');readfile();getch();caozuo();}voidzengjia()(chartemp,temp2;printf("\n\t\t 请输入联系人信息 -\n");do(if(temp=='2')system("cls");printf("\n\t\t输入联系人姓名:“)；scanf("%s",txl[n].xingming); /*键盘输入*/printf("\n\t\t输入联系人电话号码:")；scanf("%s",txl[n].dianhua);printf("\n\t\t输入联系人地址:")；scanf("%s",txl[n].dizhi);panduan(n);printf("\n\t\t是否确定？(1.确定2.重输3.取消)”)；getch();temp=getch();}while(temp=='2');if(temp=='1'){n++; /*统计个数*/printf("\n\t\t是否继续添加联系人?(Y/N):");/*是否继续输入联系人.*/temp2=getch();if(temp2=='Y'||temp2=='y')zengjia();)printf("\n");returncaozuo();)voidpanduan(inti){char*str1="ChinaMobile",*str2="ChinaUnicom",*str3="ChinaTelicom",*str4="Virtualnetworkoperator";booljudge=true;do{do{printf(("\n\t\t输入手机号码："))；scanf("\n\t\t%s",txl[i].shouji);if(txl[i].shouji[10]=='\0'11txi[i].shouji[11]!='\0')printf("Error!Again\n");}while(txl[i].shouji[10]=='\0'11txi[i].shouji[11]!='\0');x=txl[i].shouji[1];x-=48;y=txl[i].shouji[2];y-=48;z=x*10+y;if((z>=34&&z<=39)||(z>=47&&z<=152)||(z>=157&&z<=159)||z==178||(z>=183&&z<=188)){printf("\n\t\t%s\n",str1);strcpy(txl[i].yunying,str1);}elseif((z>=30&&z<=32)||z==145||z==155||z==156||z==171||z==175||z==176||z==185||z==186){printf("\n\t\t%s\n",str2);strcpy(txl[i].yunying,st⑵;}elseif(z==33||z==49||z==53||z==73||z==77||z==80||z==81||z==89){printf("\n\t\t%s\n",str3);strcpy(txl[i].yunying,str3);}elseif(z==70){printf("%s\n",str4);strcpy(txl[i].yunying,str4);}else{printf("Error!Checkagain\n");judge=false;}}while(judge==false);}///查询联系人函数开始模块四 voidchazhao()(charc;system("cls");TOC\o"1-5"\h\zprintf("\n\t\t 显示和查询联系人 ");printf("\n\t\t| 1-逐个显示所有 2-按姓名查询 |");printf("\n\t\t| 3-按电话查询 4-返回主菜单 |");printf("\n\t\t| ");printf("\n\t\t请选择您所所要的服务：”)；c=getch();switch(c)(case'1':xianshi();break; /*显示所有号码*/case'2':chazhao_xingming();break;/*调用按姓名查询函数*/case'3':chazhao_dianhua();break;/*调用按号码查询函数*/case'4':caozuo();break;/*主菜单*/))voidxianshi()//显示所有联系人函数(inti;system("cls");//清楚屏幕if(n!=0)(printf("\n\t\t 欢迎您查询通讯录所有联系人信息 -);for(i=0;i<n;i++) /*依次序显示*/(printf("\n\t\t姓名：%s",txl[i].xingming);printf("\n\t\t电话：%s",txl[i].dianhua);printf("\n\t\t地址：％s",txl[i].dizhi);printf("\n\t\t手机：%s(%s)",txl[i].shouji,txl[i].yunying);printf("\n\t\t ");if(i+1<n)(printf("\n\t\t ");system("pause");/您回错误信息))printf("\n\t\t ");)else /*无联系人*/printf("\n\t\t通讯录中无任何纪录")；printf("\n\t\t按任意键返回主菜单：")；getch();returncaozuo();)〃按号码查询函数voidchazhao_dianhua()(intmark=0;inti;charphone[15];printf("\n\t\t 按电话查找 ");do{printf("\n\t\t请输入电话号码或手机号码巧；scanf("%s",phone);if(phone[10]=='\0'||phone[11]!='\0')printf("Error!Again\n");}while(phone[10]=='\0'||phone[11]!='\0');for(i=0;i<n;i++){if(strcmp(txl[i].dianhua,phone)==0||strcmp(txl[i].shouji,phone)==0)//对比查找函数{printf("\n\t\t 以下是您查找的学生信息 -);printf("\n\t\t姓名：%s",txl[i].xingming);printf("\n\t\t电话：%s",txl[i].dianhua);printf("\n\t\t地址：％s",txl[i].dizhi);printf("\n\t\t手机：%s(%s)",txl[i].shouji,txl[i].yunying);printf("\n\t\t ");printf("\n\t\t按任意键返回主菜单：")；mark++;getch();returncaozuo();}}if(mark==0){printf("\n\t\t没有找到联系人的信息)printf("\n\t\t按任意键返回主菜单")；getch();returncaozuo();}}voidchazhao_xingming()//按姓名查询{intmark=0;inti;charname[20];");printf("\n\t\t 按姓名查找 ");printf("\n\t\t请输入您要查找的姓名门；scanf("%s",name);for(i=0;i<n;i++)(if(strcmp(txl[i].xingming,name)==0)(printf("\n\t\t 以下是您查找的联系人信息 -);printf("\n\t\t姓名：%s",txl[i].xingming);printf("\n\t\t电话：%s",txl[i].dianhua);printf("\n\t\t地址：％s",txl[i].dizhi);printf("\n\t\t手机：%s(%s)",txl[i].shouji,txl[i].yunying);printf("\n\t\t ");mark++;getch();returnchazhao();))if(mark==0)(printf("\n\t\t没有找到联系人的信息)printf("\n\t\t按任意键返回主菜单")；getch();returncaozuo();))〃〃查询联系人函数结束 〃〃删除联系人函数部分开始 voidshanchu()(charc;if(n==0) /*如果通讯录中没有一个记录输出以下部分*/(printf("\n\t\t对不起，文件中无任何纪录")；printf("\n\t\t按任意键返回主菜单")；getch();returncaozuo();)system("cls"); /*清屏*/TOC\o"1-5"\h\zprintf("\n\t\t 删除菜单 ");printf("\n\t\t| 1-删除所有2-删除单个 |");printf("\n\t\t| 3-返回主菜单 |");printf("\n\t\t| ");printf（"\n\t\t请选择您所所要的服务：”）;c=getch();/*输入的赋予choice*/switch(c)(case'1':shanchu_quanbu();break;case'2':shanchu_dange();break;case'3':caozuo();break;default:caozuo();break;))voidshanchu_quanbu()//删除所有联系人(printf("\n\t\t确认删除?(y/n)");if(getch()=='y')(fclose(fp);if((fp=fopen("通讯录.txt","w"))==NULL) /*文件空输出*/(printf("\n\t\t不能打开文件，删除失败")；readfile();)n=0;printf("\n\t\t纪录已删除，按任意键返回主菜单")；getch();returncaozuo();)elsereturncaozuo();)voidshanchu_xingming()//按姓名删除联系人(inti,m,mark=0,a=0;charname[20];printf("\n\t\t请输入要删除联系人姓名：”)；scanf("%s",name); /*键盘输入姓名*/for(i=a;i<n;i++)(if(strcmp(txl[i].xingming,name)==0)//X对比字符串查找到要删除的联系人(printf("\n\t\t以下是您要删除的联系人纪录：");printf("\n\t\t ");printf("\n\t\t姓名：%s",txl[i].xingming);printf("\n\t\t电话：%s",txl[i].dianhua);printf("\n\t\t地址：％s",txl[i].dizhi);printf("\n\t\t手机：%s(%s)",txl[i].shouji,txl[i].yunying);printf("\n\t\t ");printf("\n\t\t是否删除?(y/n)");if(getch()=='y')//实现删除功能(for(m=i;m<n-1;m++)txl[m]=txl[m+1]; /*将通讯录的向前移*/n--;mark++;printf("\n\t\t删除成功")；printf("\n\t\t是否继续删除?(y/n)");if(getch()=='y')shanchu_xingming(); /*继续调用删除函数*/returncaozuo();)elsereturnshanchu_xingming();)continue;)if(mark==0)(printf("\n\t\t没有该联系人的纪录")；printf("\n\t\t是否继续删除?(y/n)");if(getch()=='y')shanchu_xingming();returncaozuo();))voidshanchu_dianhua()//按电话号码删除联系人(inti,m,mark=0; /*变量定义*/charphone[20];do(printf("\n\t\t请输入要删除联系人电话号码或手机号码：");scanf("%s",phone);if(phone[10]=='\0'||phone[11]!='\0')printf("Error!Again\n");}while(phone[10]=='\0'||phone[11]!='\0');if(n==0)(printf("\n\t\t对不起，文件中无任何纪录")；printf("\n\t\t按任意键返回主菜单")；getch();returncaozuo();)for(i=0;i<n;i++)(if(strcmp(txl[i].dianhua,phone)==0||strcmp(txl[i].shouji,phone)==0)(printf("\n\t\t以下是您要删除的联系人纪录：");printf("\n\t\t姓名：%s",txl[i].xingming);printf("\n\t\t电话：%s",txl[i].dianhua);printf("\n\t\t地址：％s",txl[i].dizhi);printf("\n\t\t手机：%s(%s)",txl[i].shouji,txl[i].yunying);printf("\n\t\t是否删除?(y/n)");if(getch()=='y')(for(m=i;m<n-1;m++)//递推替换实现删除txl[m]=txl[m+1];n--;mark++;//记录删除次数printf("\n\t\t删除成功")；printf("\n\t\t是否继续删除?(y/n)");if(getch()=='y')shanchu_dianhua();returncaozuo();)elsereturnshanchu_dianhua();)continue;)if(mark==0)(printf("\n\t\t没有该联系人的纪录")；printf("\n\t\t是否继续删除?(y/n)");if(getch()=='y')returncaozuo();))voidshanchu_dange()//删除单个联系人(charc;printf("\n\t ");printf("\n\t\t 1-按姓名删除 2-按电话或手机号码删除")；printf("\n\t\t请选择您所所要的服务：”)；printf("\n\t ");c=getch();switch(c)(case'1':shanchu_xingming();break;case'2':shanchu_dianhua();break;))〃/删除函数部分结束 〃/修改联系人函数开始 voidxiugai() /*修改函数*/(charc;if(n==0)(printf("\n\t\t对不起，文件中无任何纪录")；printf("\n\t\t按任意键返回主菜单")；getch();returncaozuo();)system("cls");TOC\o"1-5"\h\z\o"CurrentDocument"printf("\n\t\t 修改联系人菜单 ");printf("\n\t\t| 1-按姓名修改 2-按电话或手机号码修改 |");printf("\n\t\t| 任意键-按返回主菜单 |");printf("\n\t\t ");c=getch();switch(c)(case'1':xiugai_xingming();break;case'2':xiugai_dianhua();break;default:caozuo();break;))voidxiugai_xingming()(charc;inti,mark=0;charname[20];printf("\n\t\t请输入要修改的联系人姓名：”);scanf("%s",name);if(n==0)(printf("\n\t\t文件中无任何联系人")；printf("\n\t\t按任意键返回主菜单")；getch();mark++;returncaozuo();)for(i=0;i<n;i++)(if(strcmp(txl[i].xingming,name)==0)(printf("\n\t\t以下是您要修改的联系人信息)printf("\n\t\t姓名：%s",txl[i].xingming);printf("\n\t\t电话:％s",txl[i].dianhua);printf("\n\t\t地址:%s",txl[i].dizhi);printf("\n\t\t手机：%s(%s)",txl[i].shouji,txl[i].yunying);printf("\n\t\t是否修改(y/n)");if(getch()=='y')(TOC\o"1-5"\h\zprintf("\n\t 请选择修改信息 ");printf("\n\t 1-修改姓名 2-修改电话 ");printf("\n\t 3-修改地址 4-修改手机号码 ")；printf("\n\t ");printf("\n\t请选择您所所要的服务：”)；scanf("%c",&c);switch(c)(case'1':printf("\n\t请输入新姓名：")；scanf("%s",txl[i].xingming);break;case'2':printf("\n\t请输入新电话： ")；scanf("%s",txl[i].dianhua);break;case'3':printf("\n\t请输入新地址:");scanf("%s",txl[i].dizhi);break;case'4':do(printf("\n\t请输入新手机号码：")；scanf("%s",txl[i].shouji);if(txl[i].shouji[10]=='\0'11txi[i].shouji[11]!='\0')printf("Error!Again\n");}while(txl[i].shouji[10]=='\0'11txi[i].shouji[11]!='\0');break;}}}}if(mark==0)(printf("\n\t\t没有找到联系人信息”)；printf("\n\t是否继续修改？(Y/N):");if(getch()=='y')xiugai_xingming();returncaozuo();))voidxiugai_di