Windows多线程

 

 

//简单的引出多线程是肿么回事儿。。。。当点击下载的时候，下载内容还没结束也可以点击资源库，其实这就用了另一个线程，弹出“下载完成”对话框的时候，没有点击确定是不能点击主页面内容的，这就是用------action action = new action(msg);            this.invoke(action);------把对话框交给主页面去处理

namespace windows多线程
{
    public partial class form1 : form
    {
        public form1()
        {
            initializecomponent();
        }

        private void btndownload_click(object sender, eventargs e)
        {
            this.backgroundworker1.runworkerasync();
        }

        private void btnziyuanku_click(object sender, eventargs e)
        {
            messagebox.show("精彩大片，应有尽有");
        }

        private void backgroundworker1_dowork(object sender, doworkeventargs e)
        {
            for (int i = 30320; i < 30340; i++)
            {
                try
                {
                    webclient client = new webclient();
                    client.downloadfile(@"https://job.cnblogs.com/offer/" + i + "/", @"e:\movices\" + i + ".html");
                }
                catch (exception ex)
                { }
            }
            action action = new action(msg);
            this.invoke(action);
        }
        private void msg()
        {
            messagebox.show("下载成功");
        }
    }
}