说明：  华为编程规范与范例：包括排版、注释、标识符命名、可读性、变量、结构、函数、过程、可测性、代码编辑、编译、审查
(Huawei programming standards and examples include : typesetting, Notes, the identifier name, readability, variable, structure, function, process, Testability, code edit, compile, review)