Ordinaryfunction and method calls are not affected.
普通的函数和方法调用是不受影响的。
2
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。
3
First, by comparing with the definition of ordinaryfunction, the definition of the general function and the equality of two generalized functions are introduced.