new Thread(() => {
//多线程处理的任务
//调用ui进程
//Invoke(new Action(() => {
BeginInvoke(new Action(() => {
//改变UI控件状态
}));
}).Start();
new Thread(() =>
{
Thread.Sleep(1000);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 1000; i++)
sb.Append("test");
string s = sb.ToString();
Stopwatch sw = Stopwatch.StartNew();
Invoke(new Action(() =>
{
textBox1.Text = s;
}));
MessageBox.Show(sw.ElapsedMilliseconds.ToString());
}).Start();