解决安装sass时报错的问题

ERROR:  SSL verification error at depth 0: certificate has expired (10)
ERROR:  Certificate /C=CN/ST=ZheJiang/L=HangZhou/O=Alibaba (China) Technology Co., Ltd./CN=*.taobao.org expired at 2018-12-05T03:16:02Z
Error fetching https://ruby.taobao.org/:
        SSL_connect returned=1 errno=0 state=error: certificate verify failed (certificate has expired) (https://ruby.taobao.org/specs.4.8.gz)

安装sass会报错
解决方式
改为gem sources --add https://gems.ruby-china.com/