用c语言编写ATM的程序,实现开户、存款、取款、查询余额、转账的业务逻辑。

2020-07-23 科技 230阅读
#include
#include
#include
#include
void regist();
void login();
void quite();
void inputpassword(char mima[]);
void service();
struct bank
{
char name[20];
char password[7];
int account;
double money;
}kehu;
int find;
int a[10];
struct bank one;
FILE *fp;
void main()
{
int i;
int t=1;
for(i=0;i<100;i++)
{
printf("\t\t\t\t\t\t欢迎使用青软ATM系统\n");
printf("\t\t\t\t\t\t正在进入主界面,请稍等");
int j;
for(j=1;j{
printf(".");
}
t++;
if(t==10)
{
t=1;
}
printf("\n\t\t\t\t\t\t%d%%",i);
system("cls");
}
while(1)
{
printf("\t\t\t\t\t\t服务类型: \n");
printf("\t\t\t\t\t\t[a]: 用户注册\n");
printf("\t\t\t\t\t\t[b]: 用户登录\n");
printf("\t\t\t\t\t\t[c]: 退出系统\n");
printf("\t\t\t\t\t\t请选择服务: ");
fflush(stdin);
char xz;
scanf("%c",&xz);
if(xz=='a'||xz=='A')
{
regist();
} else if (xz=='b'||xz=='B')
{
login();
} else if(xz=='c'||xz=='C')
{
quite();
} else
{
printf("输入有误,请重新输入");
}
getch();
system("cls");
}
}
void inputpassword(char mima[])
{
int i=0;
char ch;
while(1)
{
ch=getch();
if(ch!='\r')
{
if(ch!='\b'){
mima[i]=ch;
i++;
printf("*");
}else{
if(i>0){
i--;
printf("\b \b");
}
}
}else{
break;
}
}
mima[i]='\0';
printf("\n");
}
void regist()
{
fp=fopen("atm.txt","ab+");
if(fp==NULL)
{
printf("\n\t\t\t文件打开失败!");
return;
}
system("cls");
printf("\t\t\t现在执行的是注册函数的使用\n");
printf("\t\t请输入用户名: ");
fflush(stdin);
gets(kehu.name);
char password1[7];
while(1)
{
while(1)
{
printf("\n\n\t\t请输入密码:");
fflush(stdin);
inputpassword(kehu.password);
int n=strlen(kehu.password);
if(n==6)
{
break;
}else
{
printf("\n\t\t密码必须为6位!");
}
}
printf("\n\t\t请输入正确密码!: ");
fflush(stdin);
inputpassword(password1);
if(strcmp(kehu.password,password1)==0)
{
break;
}else{
printf("\n\n\t\t两次密码必须相同!");
}
}
rewind(fp);
struct bank k;
if(fread(&k,sizeof(struct bank),1,fp)==1)
{
fseek(fp,-sizeof(k),2);
fread(&k,sizeof(k),1,fp);
kehu.account=k.account+1;
}else{
kehu.account=20170001;
}
kehu.money=0;
fseek(fp,0,2);
fwrite(&kehu,sizeof(struct bank),1,fp);
fclose(fp);
printf("\n\n\t\t开户成功! ");
printf("\n\t\t您的账号为%d!",kehu.account);
printf("\n\t\t现在请您重新登录!");
}
void searchmoney()
{
system("cls");
printf("您现在使用的是查询余额功能: \n");
printf("\n\n\t\t您的余额是%0.2lf",one.money);
}
void savemoney()
{
system("cls");
double inmoney;
printf("请您选择您要存款的金额 \n");
scanf("%lf",&inmoney);
int q;
int r=1;
for(q=0;q<100;q++)
{
int w;
for(w=1;w{
printf(".");
}
r++;
if(r==10)
{
r=1;
}
printf("\n\t\t\t\t\t\t正在存款%d%%",q);
system("cls");
}
one.money=one.money+inmoney;
fseek(fp,-sizeof(one),1);
fwrite(&one,sizeof(one),1,fp);
printf("\n\n\t\t\t\t\t\t您已存款成功!");
}
void withdrawalmoney()
{
system("cls");
double outputsomemoney;
printf("请您选择您要取款的金额 \n");
scanf("%lf",&outputsomemoney);
if(one.moneyprintf("您的余额已不足,请您注意!");
}else {
int q;
int r=1;
for(q=0;q<100;q++)
{
int w;
for(w=1;w{
printf(".");
}
r++;
if(r==10)
{
r=1;
}
printf("\n\t\t\t\t\t\t正在取款%d%%",q);
system("cls");
}
one.money=one.money-outputsomemoney;
fseek(fp,-sizeof(one),1);
fwrite(&one,sizeof(one),1,fp);
printf("\n\n\t\t\t\t\t\t您已取款成功!请点清钞票!");
printf("\n\n\t\t\t\t\t\t您现在的余额为%lf",one.money);
}
}
void transfermoney()
{
system("cls");
int duifang;
int qian;
fflush(stdin);
printf("\n\n\n\t\t您现在使用的是转账功能");
printf("\n\t\t\t请输入您要转账的账户:");
scanf("%d",&duifang);
int n=ftell(fp);
rewind(fp);
int flag=0;
struct bank temp;
while(fread(&temp,sizeof(temp),1,fp)==1)
{
if(temp.account==duifang)
{
flag=1;
break;
}
}
if(flag==1)
{
printf("请输入转账金额:");
scanf("%d",&qian);
if(one.money>=qian)
{
int q;
int r=1;
for(q=0;q<100;q++)
{
int w;
for(w=1;w{
printf(".");
}
r++;
if(r==10)
{
r=1;
}
printf("\n\t\t\t\t\t\t正在转账,请稍后!%d%%",q);
system("cls");
}
temp.money=temp.money+qian;
fseek(fp,-sizeof(temp),1);
fwrite(&temp,sizeof(temp),1,fp);
one.money=one.money-qian;
fseek(fp,n-sizeof(one),0);
fwrite(&one,sizeof(one),1,fp);
printf("\n\t\t\t\t转账成功!");
}else{
printf("\n\t\t\t\t您的余额已不足!");
}
}
}
void xiugai(){
system("cls");
printf("\n\n\t\t 现在进行的是修改密码功能\n");
char oldpassword[7];
char newpassword[7];
char newpassword1[7];
int i;
for(i=0;i<3;i++){
printf("\n\t\t\t 请输入旧密码:\n");
inputpassword(oldpassword);
if(strcmp(oldpassword,one.password)==0){
printf("\n\t\t\t 输入成功!\n");
break;
}else{
printf("\n\t\t\t 密码输入有误,请重新输入!\n");
}
}
if(i<3){
while(1){
printf("\n\t\t\t 请输入您的新密码:\n");
inputpassword(newpassword);
printf("\n\t\t\t 请输入您的确认密码:\n ");
inputpassword(newpassword1);
if(strcmp(newpassword,newpassword1)==0){
strcpy(one.password,newpassword);
fseek(fp,-sizeof(one),1);
fwrite(&one,sizeof(one),1,fp);
printf("\n\t\t\t 密码修改成功!");
break;
}else{
printf("\n\t\t\t 两次密码输入不一致!");
}
}
}else{
printf("\n\t\t\t 密码输入错误!");
}
}
int zhuxiaozhanghao()
{
system("cls");
int zhuxiaoxitong;
char sf;
printf("你要注销的账号是%d",one.account);
printf("你是否要对此账号进行注销?\n\n\t\t请您选择:注销(Y)or不注销(N):");
fflush(stdin);
scanf("%c",&sf);
if(sf=='y'||sf=='Y')
{
printf("正在为您注销!\n",one.account);
zhuxiaoxitong=1;
}else{
printf("不注销系统!\n",one.account);
}
return zhuxiaoxitong;
}
void service()
{
while(1){
system("cls");
printf("\n\n\n\t\t\t\t\t\t现在是服务系统,本系统有以下服务");
printf("\n\t\t\t\t\t\t[a] 查询余额\n");
printf("\n\t\t\t\t\t\t[b] 存款服务\n");
printf("\n\t\t\t\t\t\t[c] 转账服务\n");
printf("\n\t\t\t\t\t\t[d] 取款服务\n");
printf("\n\t\t\t\t\t\t[e] 修改密码\n");
printf("\n\t\t\t\t\t\t[f] 注销 \n");
printf("\n\t\t\t\t\t\t[g] 退出系统\n");
char e;
printf("\n\t\t\t\t\t\t您要选择的服务是:");
fflush(stdin);
scanf("%c",&e);
switch(e)
{ case'A':
case'a': searchmoney() ;break;
case'B':
case'b': savemoney() ;break;
case'C':
case'c': transfermoney() ;break;
case'D':
case'd': withdrawalmoney() ;break;
case'E':
case'e': xiugai() ;break;
case'F':
case'f': {int zhuxiaoxitong=zhuxiaozhanghao();{if(zhuxiaoxitong==1) return;}break;}
case'G':
case'g': quite();break;
}
printf("\n\n\n\t\t\t\t按任意键继续......\n");
getch();
}
}
void login()
{
fp=fopen("atm.txt","rb+");
if(fp==NULL)
{
printf("\n\n\n\t\t\t\t文件打开失败!");
return;
}
system("cls");
printf("\n\t\t\t\t\t\t现在执行的是登录函数的使用\n");
int zhanghao;
printf("\n\t\t\t\t\t\t请输入账号:");
scanf("%d",&zhanghao);
int flag=0;
while(fread(&one,sizeof(one),1,fp)==1)
{
if(zhanghao==one.account){
flag=1;
break;
}
}
char password2[7];
if(flag==1){
int h;
for(h=0;h<3;h++){
printf("\n\t\t\t\t\t\t请输入密码:");
fflush(stdin);
inputpassword(password2);
if(strcmp(password2,one.password)==0)
{
printf("\n\t\t\t\t\t\t登陆成功!");
service();
break;
}else{
printf("密码不正确!");
}
}
if(h==3){
printf("\n\t\t\t您的密码三次输入有误,返回");
}
}else{
printf("无此账号!");
}
fclose(fp);
}
void quite()
{
system("cls");
printf("\t\t\t现在执行的是退出函数的使用\n");
exit(0);
}
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