IOS cocoapods安装
- 安装cocoapads：
sudo gem install cocoapods
需要更换源地址：
添加源：gem sources --add https://gems.ruby-china.com/
删除源：gem sources --remove http://rubygems-china.oss.aliyuncs.com
查看源：gem sources -l
再次执行安装命令：sudo gem install cocoapods
执行：sudo gem install -n /usr/local/bin cocoapods - 设置pod仓库：
pod setup
参考：执行pod setup很慢很慢解决方案： https://www.jianshu.com/p/43a268ba8f47