亲自测试可用 devzkndeMacBook-Pro:Platforms devzkn$ /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport devzkndeMacBook-Pro:Platforms devzkn$ open /Applications/Xcode8.3.3.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport devzkndeMacBook-Pro:Platforms devzkn$ cp -r /Users/devzkn/Downloads/11.3\ \(15E217\) /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport