class1.cs

原代码详细说明是关于c++方面的希望可以帮助大家使用

using System;
using System.Threading;

class Account 
{
	int balance;
	Random r = new Random();
	public Account(int initial) 
	{
		balance = initial;
	}
	int Withdraw(int amount) 
	{
		if(balance < 0) 
		{
			throw new Exception("负存款额");
		}
		lock (this)
		{
			if (balance >= amount) 
			{
				Console.WriteLine("取款前的存款额:" + balance);
				Console.WriteLine("{0}取出的数额:{1}",Thread.CurrentThread.Name,amount); 
				balance = balance - amount;
				Console.WriteLine("取后的存款额:" + balance);
				return amount;
			}
			else 
			{
				Console.WriteLine("{0}要取出的数额:{1},被拒绝",Thread.CurrentThread.Name,amount); 
				return 0; // 拒绝交易
			}
		}
	}
	public void DoTransactions() 
	{
		for (int i = 0; i < 5; i++) 
		{
			Withdraw(r.Next(1, 1000));//取款
		}
	}
}
class Test 
{
	public static void Main() 
	{
		Thread[] threads = new Thread[3];
		Account acc = new Account(1000);
		for(int i = 0; i <3; i++) 
		{
			threads[i]= new Thread(new ThreadStart(acc.DoTransactions));
			threads[i].Name="Thread"+(i+1);
		}
		for(int i = 0; i < 3; i++) 
		{
			threads[i].Start();
		}
	}
}