编译没问题，链接出了问题，想请教各位哪出了问题

flyingbird123

1. //Compare.h
   
2. template <class numtype>
   
3. class Compare
   
4. {
   
5.   public :
   
6.           Compare(numtype a,numtype b);
   
7.           numtype max ();
   
8.       numtype min ();
   
9.   private :
   
10.           numtype x,y;
    
11. };
    
12. //Compare.cpp
    
13. # include <iostream>
    
14. # include "Compare.h"
    
15. template <class numtype>
    
16. numtype Compare <numtype>::max ()
    
17. {
    
18.         return (x>y)?x:y;
    
19. }
    
20. template <class numtype>
    
21. numtype Compare <numtype>::min ()
    
22. {
    
23.         return (x<y)?x:y;
    
24. }
    
25. // main.cpp
    
26. # include <iostream>
    
27. # include "Compare.h"
    
28. using namespace std;
    
29. int main()
    
30. {
    
31. Compare <int>cmp1(3,7);
    
32. cout<<cmp1.max()<<" is the maximum of two integer numbers ."<<endl;
    
33. cout <<cmp1.min()<<" is the minimum of two integer numbers ."<<endl;
    
34. 
    
35. 
    
36. Compare <float> cmp2(45.78,93.6);
    
37. cout <<cmp2.max()<<" is the maximum of two integer numbers ."<<endl;
    
38. cout <<cmp2.min()<<" is the minimum of two integer numbers ."<<endl;
    
39. 
    
40. 
    
41. Compare <char>cmp3 ('a','A');
    
42. cout <<cmp3.max()<<" is the maximum of two characteres ."<<endl;
    
43. cout <<cmp3.min()<<" is the minimum of two characteres ."<<endl;
    
44. return 0;
    
45. }
    

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flyingbird123

有没有人会啊，教教我吧，搞不懂哪错了，链接显示类似以下错误
main.obj : error LNK2001: unresolved external symbol "public: char __thiscall Compare<char>::min(char,char)" (?min@?$Compare@D@@QAEDDD@Z)