一、命令
终端执行：
sudo vim /etc/hosts二、效果
执行命令后会让输入本机密码：
输入密码后就会显示 hosts 文件内容：
之后按照 vim 的命令修改文件即可：
i 进入 insert 模式
:wq! 强制保存并退出
详细解决方案
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