摘要: 接口与实现分离 阅读全文
posted @ 2020-12-19 15:32 z974890869 阅读(151) 评论(0) 推荐(0) 编辑
摘要: 1 //provision_21: Don't try to return a reference when you must return an object 2 //static :不能比较 3 #include<iostream> 4 class Rational 5 { 6 friend c 阅读全文
posted @ 2020-12-19 10:35 z974890869 阅读(53) 评论(0) 推荐(0) 编辑