Back in the days of command lines and character - based menus, interfaces indirectly offered services to users.
回到命令行和 基于 字符的菜单时代, 那时界面通常间接地为用户提供服务.
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A backslash immediately before a newline has long been used to continue string command lines.
这么规定的初衷有两个:一是为了每一行都要以换行结束.
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Provides a list of sample command lines that you can modify for your own use.
提供可修改以供自己使用的示例命令行列表.
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