方法一
添加代理设置，添加环境变量
export http_proxy="http://127.0.0.1:8123"
export https_proxy="http://127.0.0.1:8123"source /etc/profile #重新载入环境变量取消代理
unset http_proxy
unset https_proxy方法二
或者将以下内容写入.bashrc中
export http_proxy="http://127.0.0.1:8123"
export https_proxy="http://127.0.0.1:8123"source /root/.bashrc #重新载入环境变量如果要取消，注视掉这两行export之后，再重载环境变量即可
#export http_proxy="http://127.0.0.1:8123"
#export https_proxy="http://127.0.0.1:8123"source /root/.bashrc #重新载入环境变量文章来自：泰恩数据
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