C# 跨线程访问解决方案

 1 private void button2_Click(object sender, EventArgs e)
 2         {
 3             Thread thr = new Thread(ThreadWork);
 4             thr.Start();
 5         }
 6 
 7         private void ThreadWork()
 8         {
 9             if (label2.InvokeRequired)
10             {
11                 Action<string> act = (x) => { label2.Text = x; };
12                 label2.Invoke(act, "线程改变lab值");
13             }
14             else
15             {
16                 label2.Text = "";
17             }
18         }