Sass遇到的問題

gem無法切換淘寶源：

gem sources --remove https://rubygems.org/
gem sources -a http://ruby.taobao.org/

報錯：
Error fetching https://ruby.taobao.org/:
SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hello A: tlsv1 alert protocol version (https://gems.ruby-china.org/specs.4.8.gz)

淘寶的gem源已經不再維護，域名變化，改用 https://gems.ruby-china.com