It defines one member operator and has three nonmember operators .

它定义了一个成员操作符，并且有三个非成员操作符。

Member and nonmember functions with the same name do not overload one another.

具有同一名字的成员函数和非成员函数不会相互重载。

The Sales item class offers a good example of member and nonmember binary operators .

中给出了成员和非成员二元操作符的良好例子。

Most overloaded operators may be defined as ordinary nonmember functions or as class member functions.

大多数重载操作符可以定义为普通非成员函数或类的成员函数.

The fact that member and nonmember functions are possible changes how the set of candidate functions is selected.

成员函数和非成员函数都是可能的，这一事实改变了选择候选函数集的方式。