1.查看镜像：gem sources -l
2.查看pod版本：pod --version
3.查看repo：pod repo
4.安装pod：sudo gem install cocoapods
5.卸载pod：sudo gem uninstall cocoapods
6.重置代理：git config --global --unset http.proxy
7.git config --global --unset https.proxy
8.查看ruby：ruby --version
9.编辑host：sudo vim /etc/hosts
10.查看本地安装过的cocopods相关东西：gem list --local | grep cocoapods
11.删除cocoapods-core：sudo gem uninstall cocoapods-deintegrate
12.删除cocoapods-downloader：sudo gem uninstall cocoapods-downloader
13.删除cocoapods-plugins：sudo gem uninstall cocoapods-plugins
14.删除cocoapods-search：sudo gem uninstall cocoapods-search
15.删除cocoapods-trunk：sudo gem uninstall cocoapods-trunk
16.删除cocoapods-try：sudo gem uninstall cocoapods-try
17.只想单独更新某个第三方到本地Cocoapods库中最新版本，不更新其他本地第三方：pod update 第三方名字 --verbose --no-repo-update
例如：pod update AFNetworking --verbose --no-repo-update
18.只想给项目添加新的第三方，不更新本地已经存在的第三方：pod install --verbose --no-repo-update
19.更新pod本地库： pod repo update