吳秉翰

1. #include<iostream>
   
2. #include<cstdlib>
   
3. using namespace std;
   
4. int area(double ground,double height)
   
5. {
   
6.     return ground*height/2;
   
7. }
   
8. int area(double side)
   
9. {
   
10.     return side*side;
    
11. }
    
12. int area(double top,double ground,double height)
    
13. {
    
14.     return (top+ground)*height/2;
    
15. }
    
16. int main()
    
17. {
    
18.     int select;
    
19.     cout<<"(1)三角形(2)正方形(3)梯形:";
    
20.     cin>>select;
    
21.     if(select==1)
    
22.     {
    
23.         double ground,height;
    
24.         cin>>ground;
    
25.         cin>>height;
    
26.         cout<<area(ground,height);
    
27.     }
    
28.     if(select==2)
    
29.     {
    
30.         double side;
    
31.         cin>>side;
    
32.         cout<<area(side);
    
33.     }
    
34.     if(select==3)
    
35.     {
    
36.         double top,ground,height;
    
37.         cin>>top;
    
38.         cin>>ground;
    
39.         cin>>height;
    
40.         cout<<area(top,ground,height);
    
41.     }
    
42.     system("pause");
    
43.     return 0;
    
44. }

複製代碼