ATM机存取款系统是现代银行系统中不可或缺的一部分。C++作为一种高效的面向对象编程语言，被广泛应用于ATM机存取款系统的开发之中。以下是一份简单的ATM机存取款系统的 C++源代码，旨在帮助初学者们更好地理解和实践C++编程的基本概念和技能。

#include<iostream>
#include<conio.h>
using namespace std;
class bank_account
{
  private:
  int acc_num;
  string name;
  int balance;
  public:
  void assign(int account_number,string acc_name,int acc_balance)
  
    acc_num=account_number;
    name=acc_name;
    balance=acc_balance;
  
  int avail_balance()
  
    return balance;
  
  void deposit(int amount)
  {
    balance+=amount;
  }
  void withdraw(int amount)
  
    balance-=amount;
  
};
int main()
{
  bank_account user;
  int choice;
  int amount;
  int account_number;
  string account_name;
  int account_balance;
  while(true) //This makes the program continuous till the choice is exited from the menu.
  {
    cout<<"\n\n ATm MACHINE";
    cout<<"\n1.Create Account";
    cout<<"\n2.Availability Balance";
    cout<<"\n3.Deposit Money";
    cout<<"\n4.Withdraw Money";
    cout<<"\n5.Exit";
    cout<<"\n\n Enter Your Choice: ";
    cin>>choice;
    switch(choice)
    {
      case 1:
      {
        cout<<"\n Enter Account Number: ";
        cin>>account_number;
        cout<<"\n Enter Account Holder's Name: ";
        cin>>account_name;
        cout<<"\n Enter Account Balance: ";
        cin>>account_balance;
        user.assign(account_number,account_name,account_balance);
        cout<<"\n Congrats! Your Account has been created!!";
        break;
      }
      case 2:
      {
        cout<<"\n Your Available Balance is: "<<user.avail_balance();
        break;
      }
      case 3:
      {
        cout<<"\n Enter the Deposit Amount: ";
        cin>>amount;
        user.deposit(amount);
        cout<<"\n The Amount Has Been Deposited Successfully!!";
        break;
      }
      case 4:
      {
        cout<<"\n Enter the Amount You'd Like to Withdraw: ";
        cin>>amount;
        if(amount>user.avail_balance()){
          cout<<"\n Cannot Withdraw the Amount!\n Balance is Insufficient.";
        }else{
          user.withdraw(amount);
          cout<<"\n The Amount Has Been Withdrawn Successfully!!";
        }
        break;
      }
      case 5:
      {
        cout<<"\n Quitting the System....";
        exit(0);
      }
      default:
      {
        cout<<"\n Invalid Choice: Please Try Again!!\n\n";
      }
    }
    getch(); //This waits for the next input from the user.
  }
  return 0;
}

此代码涵盖了ATM机存取款系统的主要功能，例如创建帐户，提供余额，存款和提款。使用这种简单的代码，初学者可以在C++中编写自己的ATM机存取款系统，以增强自己的编程技能。

尽管这份源代码看起来不是很复杂，但是这应该是一个很好的起点，尤其是对于刚刚开始学习C++的初学者。通过研究此代码，他们可以更好地了解面向对象编程的概念，例如类、对象和访问权限。通过在这份源代码的基础上不断深入，他们可以编写更加复杂的ATM机存取款系统，同时也能够更好地理解C++编程语言的精髓。

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• C++ ATM机存取款系统源代码
  ATM机是一种方便快捷的自动取款机，通过它可以进行现金存取、转账、查询余额等操作。如果你想学习如何构建一个ATM机存取款系统，那么可以使用C++来实现。下面就是一个简单的ATM机存取款系统源代码。
  
  

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