[记录]查看Xcode内置的ios SDK版本
在Launchpad的other中打开Terminal,然后输入:xcodebuild -showsdks然后提示错误:wenpeidings-Mac:~ wenpd$ xcodebuild -showsdksxcode-select: error: tool ‘xcodebuild’ requires Xcode, but active developer directory ‘/Library/Developer/CommandLineTools’ is a command line too