You should not use your instance constructors, some special private function, or any other idiom to initialize static variables.

不应该使用实例构造函数、一些特殊的私有方法、任何其它习惯来初始化静态变量。

youdao

Private function can access private variables.

这说明私有函数能访问私有变量。

youdao

The local council is holding a civic reception for Oscar-nominated Neeson, and a private function where he will meet and greet everyone involved in project.

BBC: Neeson to unveil patriot statue

Twitter has a private messaging function which Talia is now aware of, and she has also taken down some of her previous posts from public places.

BBC: What every parent should know about social media

Will the people who enroll in it or in private plans that function like Medicaid get more care, or better care, than they would have gotten without health reform?

FORBES: John Goodman on Medicaid Outcomes