C++带参构造函数支持常规使用和初始化列表形式。
初始化列表语法：
构造函数(): 属性1(值1), 属性2(值2),,属性n (值n){}
程序源码：
#include <iostream>
#include <string>
using namespace std;
class Teacher
{
public:
//常规 带参构造函数写法
Teacher(string name, string course)
{
this->name = name;
this->course = course;
cout << "带参construction" << endl;
}
//声明带参构造函数
Teacher(string name, string course, int num);
public:
string name;
string course;
int num;
};
//初始化列表来创建构造方法
Teacher::Teacher(string name, string course, int num): name(name), course(course), num(num)
{
cout << "()-() construct" << endl;
}
int main()
{
Teacher t2("语文老师", "Chinese");
cout << t2.name << ", course=" << t2.course << endl;
Teacher t3("体育老师", "1000");
cout << t3.name << ", num" << t3.num << endl;
return 0;
}
