C# 多线程 打印 奇偶数

使用AutoResetEvent实现多线程打印奇偶数的方法如下：

static AutoResetEvent oddEvent = new AutoResetEvent(false);
static AutoResetEvent evenEvent = new AutoResetEvent(false);
static int count = 1;

static void Main(string[] args)
{
    Thread t1 = new Thread(PrintOddNumbers);
    Thread t2 = new Thread(PrintEvenNumbers);    t1.Start();
    t2.Start();
    t1.Join();
    t2.Join();
    Console.ReadLine();
}

static void PrintOddNumbers()
{
    while (count <= 100)
    {
        if (count % 2 == 1)
        {
            Console.WriteLine("Thread 1: " + count);
            count++;
            evenEvent.Set();
            oddEvent.WaitOne();
        }
    }
}

static void PrintEvenNumbers()
{
    while (count <= 100)
    {
        if (count % 2 == 0)
        {
            Console.WriteLine("Thread 2: " + count);
            count++;
            oddEvent.Set();
            evenEvent.WaitOne();
        }
    }
}

另一种使用Monitor实现多线程打印奇偶数的方法如下：

static object lockObj = new object();
static int count = 1;

static void Main(string[] args)
{
    Thread t1 = new Thread(PrintOddNumbers);
    Thread t2 = new Thread(PrintEvenNumbers);
    t1.Start();
    t2.Start();
    t1.Join();
    t2.Join();
    Console.ReadLine();
}

static void PrintOddNumbers()
{
    while (count <= 100)
    {
        lock (lockObj)
        {
            if (count % 2 == 1)
            {
                Console.WriteLine("Thread 1: " + count);
                count++;
            }
        }
    }
}

static void PrintEvenNumbers()
{
    while (count <= 100)
    {
        lock (lockObj)
        {
            if (count % 2 == 0)
            {
                Console.WriteLine("Thread 2: " + count);
                count++;
            }
        }
    }
}