运算符重载

原創 为爱存在 2020-02-21 23:49

运算符重载：
1 声明为类的成员函数，形参会少一个
2 声明为友元函数，形参会多一个

前缀++运算符，和后缀++运算符重载时候，参数列表的区别，会多一个int，

以后补上细节

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