1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
| #include<iostream>
using namespace std;
class human
{
public:
virtual void smart()=0;
virtual void beautiful()=0;
virtual ~human(){cout<<"析构human"<<endl;}
human(){cout<<"构造huamn"<<endl;}
};
class father:virtual public human{
public:
virtual void smart(){cout<<"父亲很聪明"<<endl;}
virtual void beautiful(){cout<<"父亲不是很帅"<<endl;}
father(){cout<<"构造father"<<endl;}
virtual ~father(){cout<<"析构father"<<endl;}
};
class mother:virtual public human
{
public:
virtual void beautiful(){cout<<"母亲很漂亮。。"<<endl;}
mother(){cout<<"构造mother"<<endl;}
virtual ~mother(){cout<<"析构mother"<<endl;}
virtual void smart(){cout<<"母亲并不聪明"<<endl;}
};
class son:public father,public mother
{
public:
son(){cout<<"构造son"<<endl;}
virtual ~son(){cout<<"析构son"<<endl;}
virtual void beautiful(){cout<<"儿子也很帅"<<endl;}
virtual void smart(){cout<<"儿子也很聪明"<<endl;}
};
int main()
{
human *p;
int choice=0;
while(choice<99)
{
bool quit=false;
cout<<"(0)退出(1)父亲(2)儿子(3)母亲：";
cin>>choice;
switch(choice)
{
case 0:quit=true;
break;
case 1:p=new father;
p->beautiful();
p->smart();
delete p;
break;
case 2:p=new son;
p->beautiful();
p->smart();
delete p;
break;
case 3:p=new mother;
p->beautiful();
p->smart();
delete p;
break;
default:cout<<"请输入从0到2之间的数字。";
break;
}
if(quit)
{
break;
}
}
cout<<"程序结束"<<endl;
return 0;
}
|