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一、定义Point类,包含:
私有数据成员: x和y表示点的坐标;
公有成员:
构造函数,将坐标默认初始化为(0,0)
有参数构造函数,根据形参初始化点的初始位置
拷贝构造函数
析构函数
move函数,实现点的移动,也就是坐标改变
getx函数,实现返回x坐标
gety函数,实现返回y坐标
setx函数,实现设置x坐标
sety函数,实现设置y坐标
二、定义Point数组类(类名AofPoint),包括:
私有数据:
指向数组的指针,数组的元素个数。
公有成员:
构造函数,实现大小为size的Point数组的初始化(动态创建)
析构函数
拷贝构造函数(深层拷贝)
visit_Point函数,实现通过下标访问数组中的特点Point元素
求大家帮我改一改下边这一段代码,很简单哦
- #include <iostream>
- using namespace std;
- class Point{
- private:
- int x,y;
- public:
- Point(){
- x=0;
- y=0;
- }
- Point(int x1,int y1){
- x=x1;
- y=y1;
- }
- Point(Point& po){
- x=po.x;
- y=po.y;
- }
- ~Point(){};
- void move(int x2,int y2){
- x=x2;
- y=y2;
- }
- int getX(){
- return x;
- }
- int getY(){
- return y;
- }
- void setx(int x3){
- x=x3;
- }
- void sety(int y3){
- y=y3;
- }
- };
- class AofPoint{
- private:
- Point* aof;
- int size;
- public:
- AofPoint(int h){
- size=h;
- aof=new Point[size];
- }
- ~AofPoint(){};
- AofPoint(AofPoint& ao){
- Point* m;
- m=new Point[size];
- aof=ao.aof;
- size=ao.size;
- }
- void visit_point(int i){
- aof[i];
- }
-
- };
- int main()
- {
- AofPoint afp(3);//创建afp对象时,也设置了动态对象数组的大小
- afp.visit_point(1).move(4,6);
- afp.visit_point(2).move(8,16);
- // cout << "输出第一个对象数组内容" << endl;
- cout << "point(1):x=" << afp.visit_point(1).getX() << ",y=" << afp.visit_point(1).getY() << endl;
- cout << "point(2):x=" << afp.visit_point(2).getX() << ",y=" << afp.visit_point(2).getY() << endl;
-
- AofPoint afp2(afp);
- // cout << "输出第二个对象数组内容" << endl;
- cout << "point(1):x=" << afp2.visit_point(1).getX() << ",y=" << afp2.visit_point(1).getY() << endl;
- cout << "point(2):x=" << afp2.visit_point(2).getX() << ",y=" << afp2.visit_point(2).getY() << endl;
- // cout << "改变第一个对象数组的内容,看看是否影响第二个对象数组" << endl;
- cout<<"Change:\n";
- afp.visit_point(1).move(8, 8);
- afp.visit_point(2).move(9, 9);
- // cout << "输出第一个对象数组的内容" << endl;
- cout << "point(1):x=" << afp.visit_point(1).getX() << ",y=" << afp.visit_point(1).getY() << endl;
- cout << "point(2):x=" << afp.visit_point(2).getX() << ",y=" << afp.visit_point(2).getY() << endl;
- // cout << "输出第二个对象数组内容" << endl;
- cout << "point(1):x=" << afp2.visit_point(1).getX() << ",y=" << afp2.visit_point(1).getY() << endl;
- cout << "point(2):x=" << afp2.visit_point(2).getX() << ",y=" << afp2.visit_point(2).getY() << endl;
- // cout << "若第二个对象数组内容还是原来的,说明达到了深层复制的目的" << endl;
- return 0;
- }
复制代码
是这意思吗
#include <iostream>
#include "tchar.h"
using namespace std;
class Point {
public:
int x, y;
public:
Point() {
x = 0;
y = 0;
}
Point(int x1, int y1) {
x = x1;
y = y1;
}
Point(Point& po) {
x = po.x;
y = po.y;
}
~Point() {};
void move(int x2, int y2) {
x = x2;
y = y2;
}
int getX() {
return x;
}
int getY() {
return y;
}
void setx(int x3) {
x = x3;
}
void sety(int y3) {
y = y3;
}
};
class AofPoint {
public:
Point* aof;
int size;
public:
AofPoint(int h) {
size = h;
aof = new Point[size];
//Init_point();
}
~AofPoint() {
delete[]aof;
};
AofPoint(AofPoint& ao) {
Point* m;
m = new Point[size];
aof = ao.aof;
size = ao.size;
}
void visit_point(int i) {
cout <<"x = " << aof[i].x <<" y = " << aof[i].y << endl;
}
void Init_point() {
for (int i = 0; i < size; i++)
{
cout << ("输入x") << endl;
cin >> aof[i].x;
cout << ("输入y") << endl;
cin >> aof[i].y;
}
}
};
int main()
{
AofPoint afp(2);//创建afp对象时,也设置了动态对象数组的大小
afp.visit_point(1);
return 0;
}
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