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创建一个新的Thread（）会将ParameterizedThreadStart对象作为C sharp中的参数

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啊我在线程编程中非常棒，只是开始创建多个线程的基本步骤，所以我用Google搜索并获得了一些关于在c＃中创建Thread的片段，这里是我发现的片段：

public MyThread(string name) { 
    count = 0; 
    thrd = new Thread(new ThreadStart(this.run)); // here m getting error
    thrd.Name = name; 
    thrd.Start(); 
  } 

  // Entry point of thread. 
  void run() { 
    Console.WriteLine(thrd.Name + " starting."); 

    do { 
      Thread.Sleep(500); 
      Console.WriteLine("In " + thrd.Name + 
                        ", count is " + count); 
      count++; 
    } while(count < 10); 

    Console.WriteLine(thrd.Name + " terminating."); 
  } 
}

错误是 The best overloaded method match for System.Threading.Thread.Thread(System.Threading.ParameterizedThreadStart) has some invalid arguments

为什么Thread构造函数要求我提供ParameterizedThreadStart对象，我希望传递简单的ThreadStart对象 .

另一件事是ThreadStart类没有带有1个参数的构造函数，即它需要0个参数，但在片段中它们显示了 new ThreadStart(this.run) 这个？使用C＃2008

这是完整的代码

using System; 
using System.Threading; 

class MyThread { 
  public int count; 
  public Thread thrd; 

  public MyThread(string name) { 
    count = 0; 
    thrd = new Thread(new ThreadStart(this.run)); 
    thrd.Name = name; 
    thrd.Start(); 
  } 

  // Entry point of thread. 
  void run() { 
    Console.WriteLine(thrd.Name + " starting."); 

    do { 
      Thread.Sleep(500); 
      Console.WriteLine("In " + thrd.Name + 
                        ", count is " + count); 
      count++; 
    } while(count
c#

3 回答

  • 2

    不知道为什么它不起作用，但你可以尝试：

    thrd = new Thread(run);

    从 run 方法组到 ThreadStart 委托的转换是隐式的 .

    我怀疑你在 System.Threading.ThreadStart 和代码中其他地方定义的另一种类型之间存在名称冲突...尝试将插入符号放在 ThreadStart 并按F12转到声明

    回复于
  • 2

    我已经完成了你给我们的不完整的例子，我没有遇到相同的编译器错误 .

    class Program
{
    static int count;
    static Thread thrd;


    public static void MyThread(string name) { 
        count = 0; 
        thrd = new Thread(new ThreadStart(run)); // here m getting error
        thrd.Name = name; 
        thrd.Start(); 
    } 

  // Entry point of thread. 
  static void  run() { 
    Console.WriteLine(thrd.Name + " starting.");

    do
    {
        Thread.Sleep(500);
        Console.WriteLine("In " + thrd.Name +
                          ", count is " + count);
        count++;
    } while (count == 5);
  }



  static void Main(string[] args)
  {
  }
}
    回复于
  • 2

    这应该是绝对正常的，因为有an overload取 ThreadStart 而不是 ParameterizedThreadStart .

    我怀疑这里还有其他的东西......你能提供一个简短而完整的例子来证明这个问题吗？

    除了缺少类声明本身和变量声明之外，您的代码为我编译没有问题：

    using System;
using System.Threading;

class MyThread {

    int count;
    Thread thrd;

    public MyThread(string name) { 
        count = 0; 
        thrd = new Thread(new ThreadStart(this.run)); // here m getting error
        thrd.Name = name; 
        thrd.Start(); 
    } 

    // Entry point of thread. 
    void run() { 
        Console.WriteLine(thrd.Name + " starting."); 

        do { 
            Thread.Sleep(500); 
            Console.WriteLine("In " + thrd.Name + 
                              ", count is " + count); 
            count++; 
        } while(count < 10); 

        Console.WriteLine(thrd.Name + " terminating."); 
    } 
}
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