You can then refine search results by using search scopes, and by defining membership to the search scope with scope rules.
接着，我们还可以使用搜索范围来细化搜索结果，并通过范围规则来定义范围中的成员。
Chapter 4 covers functions and program structure - external variables, scope rules, multiple source files, and so on - and also touches on the preprocessor.
第4章介绍函数和程序结构—外部变量、作用域规则和多个源文件等，并涉及到预处理器。
Chapter 4 covers functions and program structure - external variables, scope rules, multiple source files, and so on - and also touches on the preprocessor.
第4章介绍函数和程序结构—外部变量、作用域规则和多个源文件等，并涉及到预处理器。
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