打開終端（應(yīng)用程序——實用工具），運行：
sudo vi /etc/hosts
屏幕上會提示你輸入密碼（輸入密碼的時候不會有任何字符顯示，甚至*都不會顯示，輸完之后按回車就是了），打開 hosts 文件之后按 i 鍵進入插入模式（可理解為編輯模式），然后按照你的需要對該文件進行編輯，
添加--------->>>> 0.0.0.0 account.jetbrains.com
編輯完成之后按 ESC 鍵退出插入模式，之后按 :wq+回車保存退出，記得英文的冒號也是要輸入的哦。
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