你回答你的问题基本。静态变量（一个函数或者类的成员变量或局部变量）是只初始化一次，终止。例如；

So as you see although we call foo function three times the initialization of a static varible is done only once.

youdao

在创建一个类型的任何实例之前，应该初始化其中的静态成员变量。

You know that you should initialize static member variables in a type before you create any instances of that type.

youdao

当你有更复杂的逻辑来初始化静态成员变量时，请创建静态构造函数。

When you have more complicated logic to initialize static member variables, create a static constructor.

youdao

当你有更复杂的逻辑来初始化静态成员变量时，请创建静态构造函数。

When you have more complicated logic to initialize static member variables, create a static constructor.

youdao