官网网址 https://guides.cocoapods.org/
pod init 创建podfile pod install 安装 pod outdated 查看有更新的版本的pod pod update PODName 更新某个pod
podfile引入组件的不同方式：
pod 'Alamofire', :path => '~/Documents/Alamofire'
pod 'Alamofire', :git => 'https://github.com/Alamofire/Alamofire.git'
pod 'Alamofire', :git => 'https://github.com/Alamofire/Alamofire.git', :branch => 'dev'
pod 'Alamofire', :git => 'https://github.com/Alamofire/Alamofire.git', :tag => '3.1.1'
pod 'Alamofire', :git => 'https://github.com/Alamofire/Alamofire.git', :commit => '0f506b1c45'
cocoapods实际做的事情参考https://guides.cocoapods.org/using/using-cocoapods.html
cocoapods问题及解决方案参考https://guides.cocoapods.org/using/troubleshooting.html
#安装ruby gem install ruby
#升级ruby sudo gem update –system
#检查版本 ruby -v
更新rubu镜像
gem sources –remove https://rubygems.org/ gem sources -a https://ruby.taobao.org/ #检查镜像是否更新成功 gem sources -l
