qq_41470045的博客

#include <iostream>using namespace std;class Person{private: string name; bool gender; int age;public: Person(string name_ ,bool gender_, int age_){ name = name_; gender = gender_; age = age_; cou

int a = 0;int &ar = a;在C++中直接sizeof ar或& ar 得到的地址大小和首地址与a相同，这就赵造成了不占内存别名的假象通过一个包含 引用的类可以看出class refClass{ private: double& ref; public: refClass(double var = 4.00) :ref(var){} };cout << sizeof refClass << endl;