用以前定义过的类型建立一个新的枚举(grade)之后，您就可以像使用其他成员变量一样使用它了。

By creating a new enumeration (grade) of the previously defined type, you can then use it like any other member variable.

youdao

用以前定义过的类型建立一个新的枚举(grade)之后，您就可以像使用其他成员变量一样使用它了。

By creating a new enumeration (grade) of the previously defined type, you can then use it like any other member variable.

youdao