How To Create A Socket Based iPhone App and Server[mark]

以下文章介绍在ios上实现socket客户端。

http://www.raywenderlich.com/3932/how-to-create-a-socket-based-iphone-app-and-server

需要注意的是：

　　

调用[outputStream write:[data bytes] maxLength:[data length]];前先要调用

    if ([outputStreamhasSpaceAvailable])