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[= delete] using private constructor: application-1: 点击查看代码 #include<iostream> using namespace std; class B; class A { friend class B; private: A() {} 阅读全文
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lamda can be as an inline function or a object. [how to understand "lamda", comparing with class] [lamda introducer: pass value or reference ] [spec: 阅读全文
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前言:虚函数、继承、模板函数、模板类基础知识 点击查看代码 #include<iostream> #include<memory> #include<list> using namespace std; class Observer; //抽象目标 class Subject{ public: vi 阅读全文