1. #include<bits/stdc++.h>
    2. using namespace std;
    4. /**
    5.  * 对象数组和对象指针
    6.  * */
    7. class Point {
    8.     int x, y;
    9.     public:
    10.         Point() {
    11.             x = 1;
    12.             y = 1;
    13.         }
    14.         Point(int a, int b = 10) {
    15.             x = a;
    16.             y = b;
    17.         }
    18.         int getX() {
    19.             return x;
    20.         }
    21.         int getY() {
    22.             return y;
    23.         }
    24. };
    25. int main() {
    26.     Point p1(3, 3);
    27.     Point p[3]; // 由于有无参构造函数，可以定义对象数组
    28.     Point *pt;
    30.     for(int i = 0; i <= 2; i++) {
    31.         // cout<<"p["<<i<<"].x="<<p[i].getX()<<"\t";
    32.         // cout<<"p["<<i<<"].y="<<p[i].getY()<<endl;
    33.         printf("p[%d].x=%d \t p[%d].y=%d\n", i, p[i].getX(), i, p[i].getY());
    34.     }
    36.     pt = &p1;
    37.     printf("Point pt->x=%d\n", pt->getX());
    39.     pt = p;
    40.     printf("Point array pt->x=%d\n", pt->getX());
    42.     pt++;
    43.     printf("Point array pt->x=%d\n", pt->getX());
    44.     printf("Point (*pt).x=%d\n", (*pt).getX());
    45.     return 0;
    46. }