c++程序求修改
刚学c++，编写了一个银行存取款的小程序，由于没有学过容器和向量，我都是用类定义数组实现的，现在刚学容器，向量一类的，觉得有点懵，谁能帮我把我这个程序改成用容器和向量实现啊
程序代码：#include<iostream>
#include<fstream>
#include<time.h>
#include<stdio.h>
using namespace std;
class cust
{
private:
char card[20];
char password[20];
float rest;
float money;
char date[100];
public:
cust()
{
rest=0.0;
}
bankin(float n)
{
FILE *fp;
time_t t=time(0);
strftime(date,sizeof(date),"%Y/%m/%d %X",localtime(&t));
money=n;
rest=rest+money;
cout<<"已经存入！"<<endl;
fp=fopen(card,"r");
if(fp==NULL)
{
fp=fopen(card,"w");
}
else
{
fclose(fp);
fp=fopen(card,"a+");
}
if(fp==NULL)
{
cout<<"打开文件失败，程序退出"<<endl;
exit(0);
}
fprintf(fp,"%s %s 存入%.2f %.2f\n",date,card,n,rest);
fclose(fp);
}
bankout(float n)
{
FILE *fp;
time_t t=time(0);
strftime(date,sizeof(date),"%Y/%m/%d %X",localtime(&t));
if(n>rest)cout<<"余额不足！"<<endl;
else
{
money=-n;
rest=rest+money;
cout<<"取款成功！"<<endl;
fp=fopen(card,"a+");
if(fp==NULL)
{
cout<<"打开文件失败，程序退出"<<endl;
exit(0);
}
fprintf(fp,"%s %s 取出%.2f %.2f\n",date,card,n,rest);
fclose(fp);
}
}
view()
{
cout<<"您的余额为："<<rest<<endl;
}
int card_same(char ca[])
{
int kk=0;
if(!strcmp(card,ca))kk=1;
return kk;
}
setcard(char a[20])
{
strcpy(card,a);
}
setpassword()
{
FILE *fp;
char a1[20],a2[20];
cout<<"请输入密码:"<<endl;
cin>>a1;
cout<<"请再输一遍密码:"<<endl;
cin>>a2;
while(strcmp(a2,a1))
{
cout<<"两次输入不一致，请重新输入！"<<endl;
cout<<"请输入密码:"<<endl;
cin>>a2;
cout<<"请再输一遍密码:"<<endl;
cin>>a1;
}
strcpy(password,a1);
fp=fopen("用户名密码.txt","a+");
if(fp==NULL)
{
cout<<"打开文件失败，程序退出"<<endl;
exit(0);
}
fprintf(fp,"%s %s\n",card,password);
fclose(fp);
}
setrest()
{
FILE *fp;
char n[20];
fp=fopen(card,"a+");
while(!feof(fp))
{
fscanf(fp,"%s",n);
}
rest=atof(n);
fclose(fp);
}
int login(char c[20],char p[20])
{
int log=0;
if(!strcmp(card,c)&&!strcmp(password,p))
log=1;
return log;
}
print()
{
char now_time[20];
time_t t=time(0);
strftime(now_time,sizeof(date),"%Y/%m/%d %X",localtime(&t));
cout<<"日期"<<'\t'<<'\t'<<'\t'<<"卡号"<<'\t'<<"余额"<<endl;
printf("%s\t%s\t%.2f\n",now_time,card,rest);
}
load(char c1[],char p1[])
{
strcpy(card,c1);
strcpy(password,p1);
}
show()
{
FILE *fp;
char read;
cout<<"交易日期"<<'\t'<<"卡号"<<'\t'<<"交易情况"<<'\t'<<"余额"<<endl;
fp=fopen(card,"r");
if(fp==NULL)
{
cout<<"尚未开始交易"<<endl;
}
else
{
while(!feof(fp))
{
fscanf(fp,"%c",&read);
printf("%c",read);
}
cout<<endl;
fclose(fp);
}
}
};程序代码：#include<iostream>
#include<fstream>
#include<time.h>
#include<stdio.h>
#include"class.h"
using namespace std;
int menu(char key[],int a,int b)
{
int n,m,i;
while(1)
{
m=1;
for(i=0;i<strlen(key);i++)
{
if(isdigit(key[i])==0)
{
m=0;
break;
}
}
if(m==0)
{
printf("请输入正确的选择：\n");
scanf("%s",key);
}
else
{
n=atoi(key);
if(n>b||n<a)printf("请输入正确的选择：\n"),scanf("%s",key);
else break;
}
}
return n;
}
int main( void )
{
FILE *fp;
cust cm[100];
int i=0,t=0,total;
char key[100],key1[100],c[20],p[20],card[20];
float n;
fp=fopen("用户名密码.txt","a+");
if(fp==NULL)
{
cout<<"打开文件失败，程序退出"<<endl;
exit(0);
}
while(!feof(fp))
{
fscanf(fp,"%s %s",c,p);
if(feof(fp))break;
cm[i].load(c,p);
i++;
}
total=i;
cout<<"*******************************************************"<<endl;
cout<<"*--------------------中国银行欢迎你！-----------------*"<<endl;
cout<<"* *"<<endl;
cout<<"* 1用户登陆 2注册 3退出系统 *"<<endl;
cout<<"*******************************************************"<<endl;
cin>>key;
menu(key,1,3);
while(menu(key,1,3)!=3)
{
switch(menu(key,1,3))
{
case 1:
do{
cout<<"请输入用户名："<<endl;
cin>>c;
cout<<"请输入密码："<<endl;
cin>>p;
for(i=0;i<total;i++)
{
if(cm[i].login(c,p))break;
}
if(!cm[i].login(c,p))cout<<"用户名或者密码错误，请重新输入"<<endl;
t++;
if(t>=3){cout<<"输入错误次数过多，系统将自动退出！"<<endl;
exit(0);}
}while(!cm[i].login(c,p));
t=0;
cout<<"登陆成功"<<endl;
cm[i].setrest();
do{
cout<<"*******************************************************"<<endl;
cout<<"*--------------------中国银行欢迎你！-----------------*"<<endl;
cout<<"* *"<<endl;
cout<<"* 1存款 2取款 3查询余额 4查看明细 5退出系统 *"<<endl;
cout<<"*******************************************************"<<endl;
cin>>key1;
menu(key1,1,5);
switch(menu(key1,1,5))
{
case 1:
cout<<"请输入要存入的金额："<<endl;
cin>>n;
cm[i].bankin(n);
break;
case 2:
cout<<"请输入要取出的金额："<<endl;
cin>>n;
cm[i].bankout(n);
break;
case 3:
cm[i].print();
break;
case 4:
cm[i].show();
break;
}
}while(menu(key1,1,5)!=5);
break;
case 2:
do{
cout<<"请输入用户名"<<endl;
cin>>card;
for(i=0;i<=total;i++)
{
if(cm[i].card_same(card)==1)
{
cout<<"该用户名已经存在,请重新输入："<<endl;
break;
}
}
}while(cm[i].card_same(card)==1);
cm[total].setcard(card);
cm[total].setpassword();
total++;
cout<<"恭喜你，注册成功！"<<endl;
break;
}
cout<<"*******************************************************"<<endl;
cout<<"*--------------------中国银行欢迎你！-----------------*"<<endl;
cout<<"* *"<<endl;
cout<<"* 1用户登陆 2注册 3退出系统 *"<<endl;
cout<<"*******************************************************"<<endl;
cin>>key;
}
}
这么好的学习方式，肯定是你自己改呀。当你把程序改好了的时候容器中向量一类的基本用法不就掌握了吗。