cin>>x.name和cin>>*p.name有啥局别，后者是直接往地址里面写入吗，有什么好处，还有->是什么

#include <iostream>
using namespace std;


int main()
{
    struct human
    {
        char name[10];
        int sex;
        int age;


    };
    //声明结构变量和结构指针变量，并初始化
    struct human x = { "WangPing",1,30 }, *p = NULL;
    //结构指针变量指向对象
    p = &x;
    //显示结构变量的值
    cout << "x.name=" << x.name << endl;
    cout << "x.sex=" << x.sex << endl;
    cout << "x.age=" << x.age << endl;
    //利用结构指针显示结构对象中的数据
    cout << "(*p).name=" << (*p).name << endl;
    cout << "(*p).sex=" << (*p).sex << endl;
    cout << "(*p).age=" << (*p).age << endl;
    cout << "p->name=" << p->name << endl;
    cout << "p->sex=" << p->sex << endl;
    cout << "p->age=" << p->age << endl;
    //通过结构指针为结构对象输入数据
    cout << "name:";
    cin >> (*p).name;
    cout << "sex:";
    cin >> (*p).sex;
    cout << "age:";
    cin >> (*p).age;
    //显示结构变量的值
    cout << "x.name=" << x.name << endl;
    cout << "x.sex=" << x.sex << endl;
    cout << "x.age=" << x.age << endl;
}