例子以拍拍网为例下载网页，最大线程1024，但是要比较好的网络条件下，机器配置比较高才不会处问题哦，在服务器上测试效果很好。-Patted network example to download page as an example, the biggest thread 1024, but relatively good network conditions, the machine configuration will not compare Gao Cai Department issue