拷貝構(gòu)造函數(shù)

1.如果沒有自定義的拷貝構(gòu)造函數(shù)則系統(tǒng)自動生成一個默認(rèn)的拷貝構(gòu)造函數(shù)

2.當(dāng)采用直接初始化、復(fù)制初始化實例對象時或參數(shù)傳遞時系統(tǒng)自動調(diào)用構(gòu)造函數(shù)。

Teacher.h

#include<string>#include<iostream>using namespace std;class Teacher{public:    Teacher(string _name="q",int _age=25,int _m=100);    Teacher(const Teacher &tea);    void test(Teacher t);    void teach();    void setName(string _name);    string getName();    void setGender(string _gender);    string getGender();    void setAge(int _age);    int getAge();    int getMax();PRivate:    string m_strName;    string m_strGender;    int m_iAge;    const int m_iMax;};Teacher.cpp
#include"Teacher.h"using namespace std;/*定義一個Teacher類：    自定義拷貝構(gòu)造函數(shù)數(shù)據(jù)成員：            名字            性別            年齡成員函數(shù)：            數(shù)據(jù)成員的封裝函數(shù)            授課teach另：            定義可以帶最多學(xué)生的個數(shù)，此為常量*/Teacher::Teacher(string _name,int _age,int _m):m_strName("jim"),m_iAge(10),m_iMax(100){    cout<<"Teacher(string _name,int _age,int _m)"<<endl;}Teacher::Teacher(const Teacher &tea):m_strName("jim"),m_iAge(10),m_iMax(100){    cout<<"Teacher(const Teacher &tea)"<<endl;}void test(Teacher){}void Teacher::teach(){    cout<<"現(xiàn)在上課"<<endl;}void Teacher::setName(string _name){    m_strName=_name;}string Teacher::getName(){    return m_strName;}void Teacher::setGender(string _gender){    m_strGender=_gender;}string Teacher::getGender(){    return m_strGender;}void Teacher::setAge(int _age){    m_iAge=_age;}int Teacher::getAge(){    return m_iAge;}int Teacher::getMax(){    return m_iMax;}int main(){    Teacher t1;    Teacher t2=t1;    Teacher t3(t1);    test(t1);    return 0;}
Teacher(string _name,int _age,int _m)Teacher(const Teacher &tea)Teacher(const Teacher &tea)Teacher(const Teacher &tea)