C#线程的使用简单示例代码如下：

using System;
using System.Threading;

class Program
{
static void Main(string[] args)
{
Thread.CurrentThread.Name = "主线程";
Thread thread1 = new Thread(new ThreadStart(Program.Output));
thread1.Name = "子线程1";
thread1.Priority = ThreadPriority.Lowest;
Thread thread2 = new Thread(new ThreadStart(Program.Output));
thread2.Name = "子线程2";
thread2.Priority = ThreadPriority.Highest;
thread1.Start();
thread2.Start();
}

static void Output()
{
for (int i = 0; i < 10; i++)
{
Console.WriteLine("线程：{0}，i的值：{1}", Thread.CurrentThread.Name, i);
}
}
}

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