11.初始化列表

#include<iostream>
using namespace std;

//初始化列表：用来初始化属性
//语法：构造函数：属性1（值1），属性2（值2）....(){}
class people
{
public:
    int m_A;
    int m_B;
    int m_C;
    //传统初始化操作
    /*people(int a, int b, int c)
    {
        m_A = a;
        m_B = b;
        m_C = c;
    }*/
    //初始化列表初始化属性
    people(int a,int b,int c) :m_A(a), m_B(b), m_C(c)
    {

    }
};
void test08()
{
    //people p(10, 20, 30);

    people p(30,20,10);

    cout << "m_A:" << p.m_A << endl;
    cout << "m_B:" << p.m_B << endl;
    cout << "m_C:" << p.m_C << endl;
}
int main()
{
    test08();
    
    system("pause");
    return 0;
}