用结构体完成N个学生M名课程的成绩排序 用C语言编写

#include 

	
int main()
{
	struct student
	{
		int stunum;
		char stuname[20];
		int stuscore1;
		int stuscore2;
		int stuscore3;
	};
	
	int i=0;
	int j=0;
	int range=0;
	struct student students[100];
	struct student temp;
	int n=0;
	printf("请输入学生总数：\n");
	scanf("%d",&n);
	
	for(i=0;i	{
		scanf("%d %s %d %d %d",&students[i].stunum,students[i].stuname,&students[i].stuscore1,&students[i].stuscore2,&students[i].stuscore3);
	}
	
	scanf("%d",&range);
	switch(range)
	{
	case 1:
		{
			for(i=0;i			{
				for(j=0;j				{
					if(students[j].stuscore1					{
						temp=students[j];
						students[j]=students[j+1];
						students[j+1]=temp;
						
					}
					if(students[j].stuscore1==students[j+1].stuscore1)
					{
						if(students[j].stunum>students[j+1].stunum)
						{
							temp=students[j];
							students[j]=students[j+1];
							students[j+1]=temp;
						}
					
						
					}
				}
			}
			for(i=0;i			{
				printf("%d %s %d %d %d\n",students[i].stunum,students[i].stuname,students[i].stuscore1,students[i].stuscore2,students[i].stuscore3);
			}
			break;
		}
	case 2:
		{
			for(i=0;i			{
				for(j=0;j				{
					if(students[j].stuscore2					{
						temp=students[j];
						students[j]=students[j+1];
						students[j+1]=temp;
						
					}
					if(students[j].stuscore2==students[j+1].stuscore2)
					{
						if(students[j].stunum>students[j+1].stunum)
						{
							temp=students[j];
							students[j]=students[j+1];
							students[j+1]=temp;
						}
					
						
					}
				}
			}
			for(i=0;i			{
				printf("%d %s %d %d %d\n",students[i].stunum,students[i].stuname,students[i].stuscore1,students[i].stuscore2,students[i].stuscore3);
			}
			break;
		}
	case 3:
		{
			for(i=0;i			{
				for(j=0;j				{
					if(students[j].stuscore3					{
						temp=students[j];
						students[j]=students[j+1];
						students[j+1]=temp;
						
					}
					if(students[j].stuscore3==students[j+1].stuscore3)
					{
						if(students[j].stunum>students[j+1].stunum)
						{
							temp=students[j];
							students[j]=students[j+1];
							students[j+1]=temp;
						}
					
						
					}
				}
			}
			for(i=0;i			{
				printf("%d %s %d %d %d\n",students[i].stunum,students[i].stuname,students[i].stuscore1,students[i].stuscore2,students[i].stuscore3);
			}
			break;
		}
	}
	return 0;
}

这里是4名学生一门成绩的排序，不过中间还有生日，希望能给你带来点灵感吧！
通过比较，进行交换达到的排序。
源代码如下：
#include
struct student_record
{
char name[8];
struct birth
{
int year;
int month;
int day;
}date;
int score;
}student[4];

void main()
{
struct student_record student[4];
struct student_record stu;
int i,j;
printf("please input date:\n");
for(i=0;i<4;i++)
scanf("%s%d%d%d%d",student[i].name,&student[i].date.year,
&student[i].date.month,&student[i].date.day,&student[i].score);
printf("OUTPUT:\n");
printf("NAME BIRTH SCORE\n");
for(j=1;j<=3;j++)
for(i=0;i<4-j;i++)
{

if(student[i].score {
stu=student[i];
student[i]=student[i+1];
student[i+1]=stu;
}

}
for(i=0;i<4;i++)
printf("%s %d,%d,%d %d\n",student[i].name,student[i].date.year,
student[i].date.month,student[i].date.day,student[i].score);
}

这里是4名学生一门成绩的排序，不过中间还有生日，希望能给你带来点灵感吧！源代码如下：
#include
struct student_record
{
char name[8];
struct birth
{
int year;
int month;
int day;
}date;
int score;
}student[4];

void main()
{
struct student_record student[4];
struct student_record stu;
int i,j;
printf("please input date:\n");
for(i=0;i<4;i++)
scanf("%s%d%d%d%d",student[i].name,&student[i].date.year,
&student[i].date.month,&student[i].date.day,&student[i].score);
printf("OUTPUT:\n");
printf("NAME BIRTH SCORE\n");
for(j=1;j<=3;j++)
for(i=0;i<4-j;i++)
{

if(student[i].score {
stu=student[i];
student[i]=student[i+1];
student[i+1]=stu;
}

}
for(i=0;i<4;i++)
printf("%s %d,%d,%d %d\n",student[i].name,student[i].date.year,
student[i].date.month,student[i].date.day,student[i].score);
}

M门课程要先知道M是多少。不然没办法定义结构体。变量多少不知道。