12.cpp_cpp bin-优快云博客

本文详细介绍了如何使用模板类来比较不同类型的数值，并展示了其实现过程，包括整数、浮点数和字符类型之间的最大值和最小值的比较。

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<img src="https://img-blog.youkuaiyun.com/20150420160731033" alt="" /><pre class="html" name="code">#include <iostream> 
using namespace std; 
template<class numtype> 
class Compare 
{public:  
Compare(numtype a,numtype b); 
numtype max(); 
numtype min(); 
private:  
numtype x,y; 
};  
template <class numtype>  
Compare<numtype>::Compare(numtype a,numtype b) 
{x=a;y=b;}  
template <class numtype>  
numtype Compare<numtype>::max() 
{return (x>y)?x:y;}  
template <class numtype>  
numtype Compare<numtype>::min() 
{return (x<y)?x:y;} 
int main()  
{Compare<int> cmp1(3,7);  
cout<<cmp1.max()<<" is the Maximum of two integer numbers."<<endl;  
cout<<cmp1.min()<<" is the Minimum of two integer numbers."<<endl<<endl; 
Compare<float> cmp2(45.78,93.6);  
cout<<cmp2.max()<<" is the Maximum of two float numbers."<<endl; 
cout<<cmp2.min()<<" is the Minimum of two float numbers."<<endl<<endl; 
Compare<char> cmp3('a','A');  
cout<<cmp3.max()<<" is the Maximum of two characters."<<endl; 
cout<<cmp3.min()<<" is the Minimum of two characters."<<endl;  
return 0; 
}