bundle exec pod repo add https://github.com/CocoaPods/Specs.git
或者 cd ~/.cocoapods/repos 文件下 git clone https://github.com/CocoaPods/Specs.git
bundle exec pod repo add https://github.com/CocoaPods/Specs.git
或者 cd ~/.cocoapods/repos 文件下 git clone https://github.com/CocoaPods/Specs.git