在从主sudoers文件退出visudo时，它会进入包含文件进行编辑。

When you exit out of visudo from the main sudoers file, it will take you to the include file for editing.

youdao

在文件菜单中上，单击退出。

On the File menu, click Exit.

youdao

保存文件然后退出。

Save the file and exit.

youdao

But once you've written a program, "hello world," in a file called hello.c, you Save and Quit.

不过一旦你们写了一个“hello，world“程序“,并且把它保存为hello，c文件后退出。

哈佛公开课 - 计算机科学课程节选