1 #include
     
       2 using namespace std; 3 template 
      
        4 T Min(T a,T b) 5 { 6     return (a < b)?a:b; 7 } 8  9 int main()10 {11     double a = 2,b = 3.4;12     float c = 2.3,d = 3.2;13    // 模板参数不匹配解决方案14    //1.调用时进行类型强制转换15     cout << "2,3.2 min is " << Min(double(2),3.2) << endl;16     cout << "a,c min is " << Min(a,double(c)) << endl;17     cout << "a,3 min is " << Min(int('a'),3) << endl;18     //2.显示指定函数模板实例化的类型参数19     cout << "-------------------->" << endl;20     cout << "2,3.2 min is " << Min
       
        (2,3.2) << endl;21     cout << "a,c min is " << Min
        
         (a,c) << endl;22     cout << "a,3 min is " << Min
         
          ('a',3) << endl;23     //3.指定多个模板参数，下一份程序写24 25     return 0;26 }
         
        
       
      
     

第三种解决方案：

1 #include
     
       2 using namespace std; 3 template 
      
        4 T1 Min(T1 a,T2 b) 5 { 6     return (a < b) ? a:b; 7 } 8  9 int main()10 {11     double a = 2,b = 3.4;12     float c = 2.3,d = 3.2;13     cout << "-------------------->" << endl;14     cout << "2,3.2 min is " << Min(2,3.2) << endl;15     cout << "a,c min is " << Min(a,c) << endl;16     cout << "a,3 min is " << Min('a',3) << endl;17     return 0;18 }