We define member functions similarly to how we define ordinary functions. As with any function, a member function consists of four parts.

成员函数的定义与普通函数的定义类似。和任何函数一样，成员函数也包含下面四个部分。

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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。

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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。

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