C ++中类静态变量的生存期是多少? [英] What is the lifetime of class static variables in C++?

问题描述

如果我有一个名为Test ::的课程，

If I have a class called Test ::

class Test
{
    static std::vector<int> staticVector;
};

staticVector 何时构造，何时破坏?

when does staticVector get constructed and when does it get destructed ?

是用Test类的第一个对象的实例化，还是像常规静态变量一样?

Is it with the instantiation of the first object of Test class, or just like regular static variables ?

为澄清起见，在阅读了《编程语言概念》(Sebesta Ch-5.4.3.1)之后，我想到了这个问题，并说了::

请注意，当静态修饰符 出现在 C ++中的类定义中的变量， Java和C#，与它无关 变量的生存期.在那里面 上下文，它意味着变量是一个 类变量，而不是 实例变量.多种用途 保留字可能会造成混淆 特别是对于那些学习 语言.

Note that when the static modifier appears in the declaration of a variable in a class definition in C++, Java and C#, it has nothing to do with the lifetime of the variable. In that context, it means the variable is a class variable, rather than an instance variable. The multiple use of a reserved word can be confusing particularly to those learning the language.

您了解吗? :(

推荐答案

与常规静态(全局)变量完全一样.

Exactly like regular static (global) variables.

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