問題：
安裝cocoaPods失敗
sudo gem install cocoapod
報錯：【提示：ERROR: Error installing cocoapods: ERROR: Failed to build gem native extension.】
百度發現可能ruby版本問題
rvm -v
報錯：-bash: rvm: command not found
安裝ruby:
\curl -sSL https://get.rvm.io | bash -s stable --ruby
報錯：
curl: (7) Failed to connect to raw.githubusercontent.com port 443: Connection refused
解決：
1.通過地址https://blog.csdn.net/qq_43531694/article/details/106862753
方式一解決ruby安裝問題完成安裝
2.執行 source /Users/當前賬戶名/.rvm/scripts/rvm啟動rvm
3.執行安裝cocoapods 命令sudo gem install cocoapods 完成安裝；