结构体嵌套，指针形参，引用传参

#include<iostream>
#include<string>
using namespace std;


struct Student
{
    int s_id;
    string s_name;
    int s_phonenum;
};

struct Teacher
{
    int m_id;
    string m_name;
    Student m_stu;//班长
    Student starr[50];//班级学生
};
void showinfo1(const Teacher *ter)//指针形参，加了const修饰指针，保证该函数不修改实参的值
{
    cout << "老师姓名： " << ter->m_name << endl;
    cout << "班级1号学生的电话： " << ter->starr[0].s_phonenum << endl;
}

void showinfo2( Teacher &ter)//引用传参
{
    cout << "老师姓名： " << ter.m_name << endl;
    cout << "班级1号学生的电话： " << ter.starr[0].s_phonenum << endl;
}

int main()
{
    Student stu = { 1,"zhangsan",1467888 };
    Student syuarr[3] =
    {
        {2,"2hao同学",12222222},
        {3,"3#tongxue",1333333},
        {4,"4#tongxue",1444443}
    };

    Teacher ter;
    ter.m_id = 12;
    ter.m_name = "wang";
    ter.m_stu = stu;
    ter.starr[0] = syuarr[1];

    showinfo1(&ter);
    showinfo2(ter);

    system("pause");
    return 0;
}