//C++语言 通过构造函数初始化学生信息#include "stdafx.h"#include <iostream>#include <string>using namespace std;/*class CStudent{private: char m_Name[10]; int m_Age; double m_Height;public: CStudent(char *name, int age, double height) { strcpy(m_Name, name); m_Age = age; m_Height = height; } void display() { cout << "name:" << m_Name << endl; cout << "age:" << m_Age << endl; cout << "height:"<< m_Height << endl; }};*//*//内联函数class CStudent{private: char m_Name[10]; int m_Age; double m_Height;public: CStudent(char *name, int age, double height); inline void display();};CStudent::CStudent(char *name, int age, double height){ strcpy(m_Name, name); m_Age = age; m_Height = height;}inline void CStudent::display(){ cout << "name:" << m_Name << endl; cout << "age:" << m_Age << endl; cout << "height:"<< m_Height << endl;}int main(int argc, int argv[]){ CStudent student("格格", 18, 160); student.display(); //内联函数 return 0;}*//*//友元函数class CStudent{private: char m_Name[10]; int m_Age; double m_Height;public: CStudent(char *name, int age, double height); friend void display(CStudent &stu);};CStudent::CStudent(char *name, int age, double height){ strcpy(m_Name, name); m_Age = age; m_Height = height;}void display(CStudent &stu){ cout << "name:" << stu.m_Name << endl; cout << "age:" << stu.m_Age << endl; cout << "height:"<< stu.m_Height << endl;}int main(int argc, int argv[]){ CStudent student("格格", 18, 160); display(student); //友元函数 return 0;}*/class CStudent{private: char m_Name[10]; static int m_Age; //声明静态成员变量 static double m_Height; //声明静态成员变量public: CStudent(char *name, int age, double height); static void SetStu(int age, int height); //声明静态成员函数 static void display(); //声明静态成员函数};CStudent::CStudent(char *name, int age, double height){ strcpy(m_Name, name); m_Age = age; m_Height = height;}void CStudent::SetStu(int age, int height){ m_Age = age; m_Height = height;}void CStudent::display(){ //cout << "name:" << m_Name << endl; //静态成员函数不可以访问普通成员变量 cout << "age:" << m_Age << endl; cout << "height:"<< m_Height << endl;}//初始化静态成员变量 ##不能用参数初始化表,对静态成员变量进行初始化int CStudent::m_Age = 0;double CStudent::m_Height = 0;int main(int argc, int argv[]){ CStudent::display(); //显示初始化的值 CStudent student("格格", 18, 160); student.display(); CStudent::SetStu(24, 170); student.display(); return 0;}
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