#include <iostream>

 using namespace std;

 /* run this program using the console pauser or add your own getch, system("pause") or input loop */

 //定义名为max_value的函数模板

 template <class T> T max_value (T a,T b)

 {

     return ((a> b)? a: b);

 }

 //在main()函数中测试max_value函数模板

 int main(int argc, char** argv) {

        //double类型数据使用max_value模板函数

     double x = 1.2, y = 2.1;

     cout<<"x="<<x<<"\t";

     cout<<"y="<<y<<endl;

     double result=max_value(x,y);

     cout<<"max_value(x,y)="<<result<<endl;

     cout<<"max_value(2*3.0,2+3.0)="<<max_value(*3.0,+3.0)<<endl;

     cout<<"------------------"<<endl;

     //int类型数据使用max_value模板函数

     int n= , m= ;

     cout<<"n="<<n<<"\t";

     cout<<"m="<<m<<endl;

     cout<<"max_value(n,m)="<<max_value(n,m)<<endl;

     cout<<"------------------"<<endl;

     //char类型数据使用max_value模板函数

     char ch1='A',ch2='a';

     cout<<"ch1="<<ch1<<"\t";

     cout<<"ch2="<<ch2<<endl;

     cout<<"max_value(ch1,ch2)="<<max_value(ch1,ch2)<<endl;

     cout<<"------------------"<<endl;

     //字符串数据使用max_value模板函数

     char str1[]="abc",str2[]="ABC",*p;

     p=max_value(str1,str2);

     cout<<"max_value("<<str1<<","<<str2<<")="<<p<<endl;

     return ;

 }