mydjm

摘要： 1 #include <iostream> 2 using namespace std; 3 4 class Person 5 { 6 public: 7 int age; 8 int name; 9 virtual void pee()10 {11 cout<<"man stand and woman sit"<<endl;12 }13 };14 15 class man : public Person16 {17 void pee()18 {19 cout<<"man stand~"<<en 阅读全文

摘要： 1 #include <iostream> 2 using namespace std; 3 4 class A 5 { 6 protected: 7 int m_data; 8 public: 9 A(int data=1)//给了个值~10 {11 m_data=data;12 }13 int GetData()14 {15 return m_data;16 }17 };18 19 void main()20 {21 A a(2);22 A b;//无参，别加括号，那会变成函数~23... 阅读全文