查看模拟器版本路径：
1、打开Finder,点击前往，输入：
/应用程序/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
查看.a文件路径：
1、打开Finder,点击前往。输入：
//真机路径
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/usr/lib
//模拟器路径
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/usr/lib