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");
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。

原文链接：http://blog.csdn.net/shancx/article/details/70448073