模板

模板的一般形式：

template <class Ttype> return_type function_name(parameter_list)

 

测试代码：

#include<iostream>
using namespace std;

template <class X> void swapped(X &a, X &b)
{
 X temp;
 temp=a;
 a=b;
 b=temp;
}

int main()
{
 int i=1,j=2;
 float x=1.01,y=2.01;
 cout<<"original  i and j is "<<i<<' '<<j<<endl;
 cout<<"original  x and y is "<<x<<' '<<y<<endl;
 swapped(i,j);
 swapped(x,y);
 cout<<"swapped i and j is "<<i<<' '<<j<<endl;
 cout<<"swapped x and y is "<<x<<' '<<y<<endl;
 return 0;
}

 

测试结果：

original  i and j is 1 2
original  x and y is 1.01 2.01
swapped i and j is 2 1
swapped x and y is 2.01 1.01
请按任意键继续. . .