关于C ++中的全局命名空间
在C ++中，我们应该使用 :: ？
In C++, should we be prepending stuff in the global namespace with ::?
当使用WinAPI，它在C，应该我 :: HANDLE 而不是 HANDLE 和 :: LoadLibrary 而不是 LoadLibrary ？ C ++是什么说的？
For example, when using WinAPI, which is in C, should I do ::HANDLE instead of HANDLE, and ::LoadLibrary instead of LoadLibrary? What does C++ say about this? Is it generally a good idea, factoring in issues like readability and maintainability?
由于命名空间在C中不存在，所以don是一个好主意， 't use :: HANDLE访问HANDLE类型。
As namespaces don't exists in C, don't use ::HANDLE to access HANDLE type.
使用prepending :: for全局命名空间是一个好主意，为了可读性，你知道你想要访问的类型是从全局命名空间。
Using the prepending :: for global namespace is a good idea for readability, you know the type you want to access is from global namespace.
此外，如果你在一个嵌套的命名空间并声明自己的HANDLE类型（例如），那么编译器将使用这一个而不是windows。 h一个！
Moreover, if you are in a nested namespace and declare your own HANDLE type (for example), then the compiler will use this one instead of windows.h one!
因此，在嵌套命名空间中工作时，总是喜欢使用:: before names。
Thus, always prefer using :: before names when working in nested namespace.