函数名:display

功能:显示输出函数

用法:void display();

程序例:

#include<iostream.h>

template <class k1, class k2>

void display(k1 x, k2 y);

void main()

{

char c='h',str[]="ok2002";

int n=100;

float x=5.5;

double z=1.23456;

//两个参数类型相同

display(c, char(c+2)); //h j

display(x,2*x); //5.5 11

display(n, 2*n); //100 200

display(str, str); //ok2002 ok2002

display(z, 2*z); //1.23456 2.46912

//两个参数类型不同

display(c, str); //h ok2002

display(str,2*x); //ok2002 11

display(str, c); //ok2002 h

display(n, str); //100 ok2002

display(z, n); //1.23456 100

}

//定义名为display的函数模板

template <class k1, class k2>

void display(k1 x, k2 y)

{

cout<<x<<"\\t"<<y<<endl;

}