Ping与iPhone SDK
问题描述：
我需要在iPhone应用程式中执行网路连线，但 NSHost 是iPhone OS不受支援的架构。有人知道其他工具或技术来实现类似的功能吗？
I need to do a network ping in an iPhone app, but NSHost is an unsupported framework for iPhone OS. Does anybody know of other tools or techniques to achive similar functionality?
答
搜索可达性。有一个战利品在例如。 this SO问题。有了这个，您可以测试是否可以访问主机。
Search for Reachability. Have a loot at e.g. this SO question. With this, you can test if a host can be reached.
HTH