C语言银行储蓄系统源码
本文为大家分享了C语言银行储蓄系统源码，实现银行的各项功能，供大家参考，具体内容如下
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <string.h>
void openaccount();//开户
void save();//存款
void withdraw();//取款
void showAccount();//查询
void transferAccounts();//转账
void reportLoss(); //挂失
void cancelLoss(); //解除挂失
void cancelAccount(); //注销账户
void updatePassword(); //更改密码
int load();//登陆账号
int accountnum=0;//定义全局变量，用来计算账户数目
int nowaccount=0;//登录成功是的账户
struct Bank
{
char account[20]; //账号
char password[10]; //密码
char name[20]; //用户名
int balance;//账户余额
int state;//状态
}; //结构体
struct Bank banks[100];
int load()
{
int right=0,i=0,j;
int r1,r2;
char ch;
char account1[20]= {0};
char password1[10]= {0};
printf("登陆\n请输入账号：\n");
scanf("%s",account1);
printf("请输入密码：\n");
while((ch=getch())!='\r')
{
password1[i++]=ch;
putchar('*');
}
for(j=0; j<accountnum; j++)
{
r1=strcmp(account1,banks[j].account);
r2=strcmp(password1,banks[j].password);
if(r1==0&&r2==0)
{
nowaccount=j;
if(banks[j].state==0)
{
printf("登录成功！\n");//登录成功
right=1;
}
else if(banks[j].state==1)
{
printf("您的账户处于挂失状态,请解挂\n");
right=3;
}
else if(banks[j].state==2)
{
printf("账户已经销户\n");
right=2;
}
break;
}
}
if(right==0)
printf("登陆失败！\n");
return right;
}
int main()
{
int i=0,num;
char a[100];
FILE *fp;
if((fp=fopen("account.txt","r"))==NULL)
{
if((fp=fopen("account.txt","w"))==NULL)
{
printf("失败！\n");
exit(1);
}
}
while(fscanf(fp,"%s%s%s%d%d",banks[i].account,banks[i].name,banks[i].password,&banks[i].balance,&banks[i].state)!=EOF)
{
accountnum++;
i++;
}
fclose(fp);
printf("欢迎来到我的银行\n");
while(1)
{
printf("请选择业务:\n");
printf("1.开户 2.存款 3.取款\n");
printf("4.查询 5.转账 6.挂失\n");
printf("7.解挂 8.销户 9.改密\n");
printf("-1.退出\n");
scanf("%s",a);
num=atoi(a);
if(num==1)
openaccount();//开户
else if(num==2)
save();//存款
else if(num==3)
withdraw();//取款
else if(num==4)
showAccount();//查询
else if(num==5)
transferAccounts();//转账
else if(num==6)
reportLoss(); //挂失
else if(num==7)
cancelLoss(); //解挂
else if(num==8)
cancelAccount(); //注销账户
else if(num==9)
updatePassword(); //更改密码
else if(num==-1)
{
printf("欢迎下次再来\n");
break;
}
else
printf("抱歉，没有此业务\n");
}
if((fp=fopen("account.txt","w"))==NULL)
{
printf("失败！\n");
exit(1);
}
for(i=0; i<accountnum; i++)
{
fprintf(fp,"%s\t%s\t%s\t%d\t%d\n",banks[i].account,banks[i].name,banks[i].password,banks[i].balance,banks[i].state);
}
fclose(fp);
return 0;
}
void openaccount()
{
int i=0,j=0;
int r;
char ch;
char password1[10]= {0};
printf("账户（十位数）：\n");
scanf("%s",banks[accountnum].account);
while(banks[accountnum].account[i]!='\0')
i++;
if(i!=10)
{
printf("输入账号有误\n");
return;
}
i=0;
printf("姓名：\n");
scanf("%s",banks[accountnum].name);
printf("密码：\n");
while((ch=getch())!='\r')
{
banks[accountnum].password[i++]=ch;
putchar('*');
}
printf("\n");
printf("再次输入密码：\n");
while((ch=getch())!='\r')
{
password1[j++]=ch;
putchar('*');
}
printf("\n");
r=strcmp(banks[accountnum].password,password1);
if(r!=0)
{
printf("两次密码不相同，开户失败！\n");
return;
}
banks[accountnum].balance=0;
banks[accountnum].state=0;
accountnum++;
printf("开户成功\n");
}
void save()
{
if(load()!=1)
return;
char addmoney[10];//存入金额
int money;//将字符型转化为int型
int i=0;
printf("存入金额:\n");
scanf("%s",addmoney);
while(addmoney[i]!='\0')
{
if(addmoney[i]<'0'||addmoney[i]>'9')
{
printf("输入格式错误！\n");
return;
}
i++;
}
while(addmoney[i]!='\0')
{
if(i>9)
{
printf("金额超限\n");
return;
}
i++;
}
money=atoi(addmoney);
if(money==0)
{
printf("存款失败\n");
return;
}
else
{
banks[nowaccount].balance+=money;
printf("存款成功\n");
}
}
void withdraw()
{
if(load()!=1)
return;
char reducemoney[10];//取款金额
int money,i=0;
printf("请输入取款金额\n");
scanf("%s",reducemoney);
while(reducemoney[i]!='\0')
{
if(reducemoney[i]<'0'||reducemoney[i]>'9')
{
printf("输入格式错误！\n");
return;
}
i++;
}
while(reducemoney[i]!='\0')
{
if(i>9)
{
printf("金额超限\n");
return;
}
i++;
}
money=atoi(reducemoney);
if(money==0)
{
printf("取款失败\n");
return;
}
else
{
if(money>banks[nowaccount].balance)
printf("您的账户没有这么多余额,取款失败!\n");
else
{
banks[nowaccount].balance-=money;
printf("取款成功\n");
}
}
}
void showAccount()
{
if(load()!=1&&load()!=2)
return;
printf("您的账户信息如下：\n");
printf("账号：%s\t余额：%d\n",banks[nowaccount].account,banks[nowaccount].balance);
}
void transferAccounts()
{
if(load()!=1)
return;
char account1[20];
int i,judge=0,money,a;
char tramoney[10];
printf("请输入您转入的账户\n");
scanf("%s",account1);
for(i=0; i<accountnum; i++)
{
if(strcmp(account1,banks[i].account)==0)
{
a=i;
judge=1;
break;
}
}
if(judge!=1)
{
printf("没有发现此账户\n");
return;
}
printf("请输入转账金额\n");
scanf("%s",tramoney);
while(tramoney[i]!='\0')
{
if(tramoney[i]<'0'||tramoney[i]>'9')
{
printf("输入格式错误！\n");
return;
}
i++;
}
while(tramoney[i]!='\0')
{
if(i>9)
{
printf("金额超限\n");
return;
}
i++;
}
money=atoi(tramoney);
if(money==0)
{
printf("转账失败\n");
return;
}
else
{
if(money>banks[nowaccount].balance)
printf("您的账户没有这么多余额,转账失败!\n");
else
{
banks[nowaccount].balance-=money;
banks[a].balance+=money;
printf("转账成功\n");
}
}
}
void reportLoss()
{
if(load()!=1)
return;
banks[nowaccount].state=1;
printf("挂失成功\n");
}
void cancelLoss()
{
int judge=0;
if(load()==3)
{
printf("立即解挂请按1，退出请按0\n");
scanf("%d",&judge);
if(judge==1)
{
banks[nowaccount].state=0;
printf("解挂成功\n");
}
}
else if(load()==1)
printf("账户正常\n");
}
void cancelAccount()
{
int r;
r=load();
if(r==2)
{
printf("账户已经销户\n");
return;
}
else if(r==3||r==0)
return;
else if(r==1)
{
printf("请将您的账户余额取完\n");
banks[nowaccount].state=2;
banks[nowaccount].balance=0;
printf("注销成功\n");
}
}
void updatePassword()
{
char newpassword1[10]= {0},newpassword2[10]= {0};
int i=0,j=0,r;
char ch;
if(load()!=1)
return;
printf("请输入新密码\n");
while((ch=getch())!='\r')
{
newpassword1[i++]=ch;
putchar('*');
}
printf("\n");
printf("再次输入密码：\n");
while((ch=getch())!='\r')
{
newpassword2[j++]=ch;
putchar('*');
}
printf("\n");
r=strcmp(newpassword1,newpassword2);
printf("r:%d",r);
if(r!=0)
{
printf("两次密码不相同，改密失败！\n");
return;
}
i=0;
while(newpassword1[i]!='\0')
{
banks[nowaccount].password[i]=newpassword1[i];
i++;
}
printf("改密成功\n");
}
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