这个命令的行为视目前的选取范围而定。

The behavior for this command depends on the current selection.

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如果需要自定义clean命令的行为，可以在此添加自己的代码。

If you want to customize the clean command's behavior, you can add your own code right here.

youdao

在这种情况下，第一个命令发出捕获整个命令的行为的代码。

In this case, the first command emits code that captures the entire command's behavior.

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- You then run a compiler, in our case called "GCC" -- -- one of the world's most popular -- and then you can run it with some number of switches, these command line arguments as they're called that somehow influences the behavior of this program.

然后你们运行编译器，在这里我们使用叫做“GCC“的编译器-,这是全球最流行的-,然后你们可以通过一些命令来运行这个编译器，这些命令行参数可以,影响这个程序的行为。

哈佛公开课 - 计算机科学课程节选