static-scope rule 静态作用域原则
You can use static assertions in global scope and inside namespaces, function bodies, or class declarations.
可以在全局范围以及在名称空间、函数体或类声明内使用静态断言。
The scope resolution operator should sit between the class name and the static property you wish to access.
范围解析操作符应位于类名和希望访问的静态属性之间。
The valid lifetime and scope of application responses and static content may differ, although applications typically have a shorter lifetime and smaller scope than static content pages.
应用程序响应和静态内容的有效生存期和作用域可能有所不同，与静态内容页相比，通常应用程序的生存期较短，作用域也较小。
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