//用结构体数组完成：有5个学生（包括学号，姓名，成绩），要求按照成绩高低输出学生信息
#include <stdio.h>
struct Stu
{
	int num;
	char name[20];
	int score;
};
int main()
{
	int i,j;
	struct Stu student[5]={{317,"han",89},{318,"hu",50},{319,"kang",84},{320,"li",70},{321,"lian",76}};
	struct Stu temp;
	for(i=0;i<5;i++)
	{
		for(j=i+1;j<5;j++)
		{
			if(student[i].score<student[j].score)
			{
				temp=student[i];
				student[i]=student[j];
				student[j]=temp;
			}
		}
	}
	for(i=0;i<5;i++)
	{
		printf("%d %6s  %d\n",student[i].num,student[i].name,student[i].score);
	}
	return 0;
}