As we learned in Section 2.8 (p. 65), class data members are not initialized when the class is defined. Instead, data members are initialized through a constructor.

正如在第2 . 8节所学习的，在定义类时没有初始化它的数据成员，而是通过构造函数来初始化其数据成员。

youdao

There is one crucially important difference between how we define variables and class data members: We ordinarily cannot initialize the members of a class as part of their definition.

定义变量和定义数据成员存在非常重要的区别：一般不能把类成员的初始化作为其定义的一部分。

youdao

It includes all class data members, all class member functions (either explicitly declared, or implicitly generated by the compiler), all base classes of the class, and all their members. Consider.

它包括所有类的数据成员，所有类的成员函数(或者显式声明，或者由编译器隐式生成)，所有类的基类和所有它们的成员。

youdao

This is a settlement of a data security breach class action lawsuit with 130M class members.

FORBES: Top Ten Internet Law Developments of 2012