方法一：关闭电脑代理，如果能科学上网，就科学上网
Go to ~/.cocoapods/repos and run git clone https://github.com/CocoaPods/Specs.git master
犹豫有600多 M,大概率会失败，失败使用方法二
方法二：自己下载，解压到~/.cocoapods/repos推荐
you can download the zip file and then unzip it to ~/.cocoapods/repos codeload.github.com/CocoaPods/S…
