c - 在 C 中为银行程序使用文本文件

Question

在你的帮助下我几乎完成了这个银行程序(我之前问过一个关于相同代码的问题)。但是我想用一个文本文件链接这个 C 代码中的银行账户用户号码和他的余额。我不知道这是否可能，因为我是编程新手。我在这个网站上看到了其他相关问题，因此我问了这个问题。谢谢!

#include<stdio.h>
#include<conio.h>
int main(void)
{
int deposit,withdraw,kbalance;
int option;
int decash,wicash;
int balance;
int wibal;

printf("Wel0ome to skybank\n");
printf("Enter your current Balance\n");
scanf_s("%d", &balance);
printf("Press 1 to deposit cash\n");
printf("Press 2 to Withdraw Cash\n");
printf("Press 3 to Know Your Balance\n");
printf("Press 4 to Quit\n");
while((option=getchar())!=4){
scanf_s("%d", &option);
switch(option)
   {
    case 1:
        printf("Enter the amount you want to deposit\n");
        scanf_s("%d", &decash);
        printf("Thank You\n");
        printf("%d have been deposited in your account\n", decash);
        balance=balance+decash;
        printf("Your balance is Rs.%d\n",balance);
        break;
    case 2:
        printf("Enter the amount you want to withdraw\n");
        scanf_s("%d", &wicash);
        wibal=balance-wicash;
        if(wicash<balance){
            printf("Thank You\n");
            printf("%d have been withdrawed from your account\n", wicash);
            printf("Your balance is Rs.%d\n", wibal);}
        else{
            printf("Sorry. You have insufficient balance to conduct         this transaction!\n");}
        balance=balance-wicash;
        break;
    case 3:
        printf("Your balance is Rs.%d\n", balance);
        break;
    case 4:
        exit();
        break;
    default:
        printf("Invalid Input\n");
        break;
    }
}
_getch();
}

Answer 1

有结构

struct BankAccount
{
    int AccountNo;
    int Balance
} Accounts[NUM_OF_ACCOUNTS]

使用结构格式读/写文件