声明一个类模板

 1 #include <iostream>
 2 
 3 /* run this program using the console pauser or add your own getch, system("pause") or input loop */
 4 using namespace std;
 5 template<class numtype>
 6 class Compare
 7 {
 8     public:
 9         Compare(numtype a,numtype b)
10         {
11             x=a;
12             y=b;
13         }
14         numtype max()
15         {
16             return (x>y)?x:y;
17         }
18         numtype min()
19         {
20             return (x<y)?x:y;
21         }
22         private:
23             numtype x,y;
24 };
25 int main(int argc, char** argv) {
26     Compare<int>cmp1(3,7);
27     cout<<cmp1.max()<<"is the Maximum of two integer numbers."<<endl;
28     cout<<cmp1.min()<<"is the Minimum of two integer numbers."<<endl<<endl;
29     Compare<float> cmp2(45.78,93.6);
30     cout<<cmp2.max()<<"is the Maximum of two float numbers."<<endl;
31     cout<<cmp2.min()<<"is the Minimum of two float numbers"<<endl<<endl;
32     Compare<char>cmp3('a','A');
33     cout<<cmp3.max()<<"is the Maximum of two characters."<<endl;
34     cout<<cmp3.min()<<"is the Minimum of two characters."<<endl;
35     return 0;
36 }