private void button2_Click(object sender, EventArgs e)
{
string id = Thread.CurrentThread.ManagedThreadId.ToString();
Thread.CurrentThread.Name = "MainThread";
richTextBox1.Text = "主线程线程ID：" + id + " 主线程名：" + Thread.CurrentThread.Name + "\n";
begin1 = new deltest1(method1);
callback = new AsyncCallback(back1);
List <objstate> list = new List <objstate>();
for (int i = 0; i < 10; i++)
{
objstate obj = new objstate("James" + (i * i).ToString(), "Warke" + (i * 3).ToString());
list.Add(obj);
}
//delegate.BeginInvoke(parameter[] para, AsyncCallback callback, object obj)
//para是method方法的参数;
//callback是method方法执行完后在同一子线程中立即执行的回调函数;
//obj是一个可以传入回调函数中的object ，在回调函数中通过 IAsyncResult.AsyncState获取
begin1.BeginInvoke(back1, list);
this.Location = new System.Drawing.Point(0, 0);
MessageBox.Show("主线程没有阻塞");
}
private void button1_Click(object sender, EventArgs e)
{
begin = new deltest(method);
callback = new AsyncCallback(back);
obj = new objstate(); //实例化类，该对象可以传入回调函数中
begin.BeginInvoke(back, obj); //异步执行method，界面不会假死，5秒后执行回调函数，弹出提示框
}
private void back(IAsyncResult ar)
{
string res = begin.EndInvoke(ar);
objstate obj = (objstate)(ar.AsyncState);//通过AsyncState获取传入的object
MessageBox.Show(res + "\n" + obj.fname + " " + obj.lname + " " + obj.birthday);
}
private void FirstMethod()
{
begin = new deltest(method);
callback = new AsyncCallback(back);
obj = new objstate(); //实例化类，该对象可以传入回调函数中
begin.BeginInvoke(back, obj); //异步执行method，界面不会假死，5秒后执行回调函数，弹出提示框
}
