C++类对象数组按某一属性排序问题，急求大神帮助啊！

Question

class Student{
public:
string x;
};

我怎么按由大到小的顺序排序啊？
sort没用的说，求大神详细代码！

Answer 1

 #include<iostream>
#include<algorithm>
using namespace std;
class Student{
public:
string x;
};
short comp(const Student &a,const Student &b)
{
    return a.x>b.x;
}
int main()
{
    Student a[5];
    int i;
    for(i=0;i<5;i++)
        cin>>a[i].x;
    sort(a+0,a+5,comp);
    for(i=0;i<5;i++)
        cout<<a[i].x<<" ";
    cout<<endl;
}