CocoaPod指定版本安装删除

安装删除指定版本

sudo gem uninstall cocoapods -v 1.2.0
sudo gem install -n /usr/local/bin cocoapods -v 1.0.0

补充：

1）切换gem源

gem source -l
gem sources --remove https://rubygems.org/
gem source -a https://gems.ruby-china.org/