有趣的多线程编程（2）——线程中的参数传递-.NET教程,算法/线程

使用类、类的方法或类的属性都可以向线程传递参数：
public class urldownloader
{
    string url;

    public urldownloader (string url)
    {
        this.url = url;
    }

    public void download()
    {
        webclient wc = new webclient();
        console.writeline("downloading " + url);                        
        byte[] buffer = wc.downloaddata (url);
        string download = encoding.ascii.getstring(buffer);
        console.writeline(download);
        console.writeline("download successful.");

        //这里你可以将download进行保存等处理......
    }
}

[... 在另一个类中使用它们...]
              
urldownloader downloader = new urldownloader (yoururl);
new thread (new threadstart (downloader.download)).start();

注意参数是如何传递的。

在.net 2.0中还可以这样：

(code-beside）
方式一：

threadstart starter = delegate { download(yoururl); });
new thread(starter).start();
//使用线程池
waitcallback callback = delegate (object state) { download ((string)state); };
threadpool.queueuserworkitem (callback, yoururl);

方式二(使用parameterizedthreadstart)：
thread t = new thread (new parameterizedthreadstart(downloadurl));
t.start (myurl);

static void downloadurl(object url)
{
    // ....
}