完成数学中向量的封装，其中，用指针和动态申请支持向量长度的改变，使用浅克隆和深克隆复制向量类，比较这两种克隆方式的异同。

二、类图

三、代码

1、深克隆（C++）

 1 #include <iostream>
 2 #include <string.h>
 3 using namespace std;
 4 
 5 class Vector {
 6 private:
 7     int x1;
 8     int y1;
 9     int x2;
10     int y2;
11 public:
12 
13     Vector(int x1, int y1,int x2,int y2)//构造函数
14     {
15         x1 = x1;
16         y1 = y1;
17         x2 = x2;
18         y2 = y2;
19         cout << "构造函数" << endl;
20     }
21     Vector(const Vector& p)//拷贝构造函数
22     {
23         
24         x1 = p.x1;
25         y1 = p.y1;
26         x2 = p.x2;
27         y2 = p.y2;
28         cout << "进行深克隆" << endl;
29     }
30     Vector() {
31 
32     }
33     ~Vector()
34     {
35         cout << "析构函数 ..." << "(" << x1 << ", " << y1 << ")—>(" << x2 << "," << y2 << ")" << endl;
36         
37     }
38     void dispaly()
39     {
40         cout<<"(" << x1<< ", " << y1<<")—>("<<x2<<","<<y2<<")" << endl;
41     }
42     void setX1(int x)
43     {
44         x1 = x;
45     }
46     void setY1(int x)
47     {
48         y1 = x;
49     }
50     void setX2(int x)
51     {
52         x2 = x;
53 
54     }
55     void setY2(int x)
56     {
57         y2 = x;
58     }
59 };
60 int main()
61 {
62     Vector *p1=new Vector();
63     p1->setX1(1);
64     p1->setX2(4);
65     p1->setY1(7);
66     p1->setY2(3);
67     p1->dispaly();
68     cout << "进行深克隆" << endl;
69     Vector *p2(p1);
70 
71    p2->dispaly();
72    cout << "判断p1==p2...." << endl;
73    if (p1 == p2) {
74        cout << "true" << endl;
75    }
76    else {
77        cout << "flase" << endl;
78    }
79     return 0;
80 }

DeepClone.cpp

2、浅克隆（C++）

 1 #include <iostream>
 2 using namespace std;
 3 
 4 //接口
 5 class Vector
 6 {
 7 public:
 8     Vector() {}
 9     virtual ~Vector() {}
10 
11     virtual Vector* Clone() = 0;
12 };
13 
14 //实现
15 class ConcreteVector : public Vector
16 {
17 private:
18     int x1;
19     int y1;
20     int x2;
21     int y2;
22     int m_counter;
23 public:
24     ConcreteVector() :m_counter(0) {}
25     virtual ~ConcreteVector() {}
26 
27     //拷贝构造函数
28     ConcreteVector(const ConcreteVector& rhs)
29     {
30         m_counter = rhs.m_counter;
31     }
32    
33     void set(int a,int b,int c,int d) {
34         x1 = a;
35         y1 = b;
36         x2 = c;
37         y2 = d;
38 
39     }
40     //复制自身
41     virtual ConcreteVector* Clone()
42     {
43         //调用拷贝构造函数
44         return new ConcreteVector(*this);
45     }
46 
47     void dispaly()
48     {
49         cout << "(" << x1 << ", " << y1 << ")—>(" << x2 << "," << y2 << ")" << endl;
50     }
51     
52 };
53 
54 int main()
55 {
56     //生成对像
57     ConcreteVector* conProA = new ConcreteVector();
58     conProA->set(14, 4, 2, 8);
59     
60     //复制自身
61     ConcreteVector* conProB = conProA->Clone();
62     conProB->set(14, 4, 2, 8);
63     cout << "深克隆前...." << endl;
64     conProA->dispaly();
65     cout  << endl;
66     cout << "深克隆后...." << endl;
67     conProB->dispaly();
68     cout << "判断p1==p2...." << endl;
69     if (conProA == conProB) {
70 
71         cout << "true" << endl;
72     }
73     else {
74         cout << "flase" << endl;
75     }
76     delete conProA;
77     conProA = NULL;
78 
79     delete conProB;
80     conProB = NULL;
81 
82     return 0;
83 }

ShallowClone.cpp