1.把想要运行的SDK版本 放到如下目录 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer
2./Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/SDKSettings.plist
3.
4.重启xcode 就行了
1.把想要运行的SDK版本 放到如下目录 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer
2./Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk/SDKSettings.plist
3.
4.重启xcode 就行了