namespace Test { class Program { static void Main(string[] args) { Thread t1 = new Thread(new ThreadStart(TestMethod)); Thread t2 = new Thread(new ParameterizedThreadStart(TestMethod)); t1.IsBackground = true; t2.IsBackground = true; if(!t1.IsAlive)//线程状态,如果线程已在运行则不运行 { t1.Start(); } if(!t2.IsAlive) { t2.Start("hello"); } Console.ReadKey(); } public static void TestMethod() { Console.WriteLine("不带参数的线程函数"); } public static void TestMethod(object data) { string datastr = data as string; Console.WriteLine("带参数的线程函数,参数为:{0}", datastr); } } }