class D丁类classn.等级；阶级；阶层；班级；课；[生]纲；<口>出色的风度v.分类classifcation screen分极筛class of permutation排列类class identification阶级身份classifiers ensemble分类器集成classified operation分类经营class testing-case类测试用例class administration班级管理class of nonlaborers非劳动阶级classified principal分类原则class in association社课

1. Name lookup in class scope finds names declared in other scopes as well.
   类作用域中的名字查找也会发生在其他作用域中声明的名字。