#include<iostream>
using namespace std;
template<typename T>            
T sort(T*a,int n)                    
{
     for(int i=0;i<n;i++)
     {
         for(int j=n-1;j>i;j--)
         {
                if(a[j]<a[j-1])
                {
                         T temp=a[j-1];
                         a[j-1]=a[j];
                         a[j]=temp;
                }
         }
         }
      for(int k=0;k<n;k++) cout<<a[k]<<endl;         
      return 0;
}
int main()
{
     int a[5],n;            
     n=sizeof(a);            
     for(int i=0;i<n;i++)
         cin>>a[i];      
     sort(a,n);                                
     return 0;
}

谢谢版主，懂了