static void Main(string[] args)
{
Console.WriteLine("主线程." + Thread.CurrentThread.ManagedThreadId);
FooDelegate fooDelegate = Foo;
fooDelegate.BeginInvoke("Hello world.", FooComepleteCallback, fooDelegate);
Console.WriteLine("主线程继续执行..." + Thread.CurrentThread.ManagedThreadId);
Console.WriteLine("Press any key to continue...");
Console.ReadKey(true);
}
static void Main(string[] args)
{
Console.WriteLine("主线程" + Thread.CurrentThread.ManagedThreadId);
FooDelegate fooDelegate = Foo;
IAsyncResult result = fooDelegate.BeginInvoke("Hello World.", null, null);
Console.WriteLine("主线程继续执行...");
//当使用BeginInvoke异步调用方法时，如果方法未执行完，EndInvoke方法就会一直阻塞，直到被调用的方法执行完毕
int n = fooDelegate.EndInvoke(result);
Console.WriteLine("回到主线程" + Thread.CurrentThread.ManagedThreadId);
Console.WriteLine("结果是" + n);
Console.ReadKey(true);
}