線程使用方法 帶參 不帶參 線程類

如今C#已經建議擯棄使用 Suspend, Resume 暫停/恢復線程, 也儘可能少用 Abort方法中斷一個線程.

建議使用線程的同步手段有: Mutex、ManualResetEvent、AutoResetEvent, Monitor.

下面再對此進行詳細描述.

Thread類的構造函數有2類:

一種是不帶參數(ThreadStart 委託) --

public Thread(ThreadStart start);

另外一種是帶參數(ParameterizedThreadStart 委託) --

public Thread(ParameterizedThreadStart start);

ParameterizedThreadStart 委託簽名:

public delegate void ParameterizedThreadStart(Object obj);

示例:

1. 不帶參數:

// 定義線程方法:

private static void ThreadMain()
{
Console.WriteLine("This is other thread main method.");
}

　　　　// 調用:

Thread mythread = new Thread(ThreadMain);
mythread.Start();

 

2. 帶參數:

// 定義線程方法:

private static void MainThreadWithParameters(object o)
{
Data d = (Data)o; //類型轉換
Console.WriteLine("Running in a thread, received {0}", d.Message);
}

public struct Data
{
public string Message;
}

// 調用:

var data = new Data { Message = "Info" };
Thread t2 = new Thread(MainThreadWithParameters);
t2.Start(data); // 傳入參數

 

3. 經過定義類傳遞參數:

// 定義存放數據和線程方法的類:

public class MyThread
{
private string message;
public MyThread(string data)
{
this.message = data;
}
public void ThreadMethod()
{
Console.WriteLine("Running in a thread, data: {0}", this.message); 
}
}

// 調用

var obj = new MyThread("info");
Thread myThread = new Thread(obj.ThreadMethod); //ThreadStart 委託
mythread.Start();