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After having installed the iPhone SDK 3.1.2, Interface Builder is not in sync with Xcode anymore.The light indicator at the bottom of the XIB window is grey.IB doesn\'t see any files from the Xcode pr
众所周知，OpenStack的通信方式有两种，一种是基于HTTP协议的RESTFulAPI方式，另一种则是RPC调用。两种通信方式的应用场景有所不同，在OpenStack中，前者主要用于各组件之间的...
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