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定义一个学生结构体类型Student,包括num、name和score[3],分别代表学生的学号、姓名和语文、数学、英语三门课的分数。由用户在控制台输入三个学生的学号、姓名和三门课的分数,将这些数据赋值给一个包含长度为3的Student数组。再输出这三个学生的学号、姓名和三门课的分数,以及这三门课各自的平均分。

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struct student {
    char name[20];
    int idnum;
    float score[3]; //分别存三科成绩
    double total; // 总分
};
struct student * highscore(struct student *s, int n)
{
    int i;
    struct student * high = s;
    for(i = 0; i < n; i++) {
        (s+i)->total = (s+i)->score[0] + (s+i)->score[1] + (s+i)->score[2];
        if(high->total < (s+i)->total)
            high = s+i;
    }
    return high;
}
main()
{
    struct student *s, student[5];
    // 录入学生信息
    for(s = student; s < student+5; s++) {
        printf("输入第%d个学生的信息:\n", s-student+1);
        printf("姓名:");
        scanf("%s", s->name);
        printf("学号:");
        scanf("%d", &s->idnum);
        printf("语文 数学 英语:\n");
        scanf("%f %f %f", &(s->score[0]), &(s->score[1]), &(s->score[2]));
    }
    // 输出学生信息
    printf("\n学生信息\n姓名\t学号\t语文\t数学\t英语\n");
    for(s = student; s < student+5; s++)
        printf("%s\t%d\t%.1f\t%.1f\t%.1f\n", s->name, s->idnum, s->score[0], s->score[1],s->score[2]);
    // 计算学生总分病返回总分最高的学生信息
    s = highscore(student, 5);
    printf("\n总分最高的学生是:%s,学号:%d\n成绩:语文:%.1f数学:%.1f英语:%.1f总分:%.1f\n",  s->name, s->idnum, s->score[0], s->score[1],s->score[2], s->total);
}

 


#include "stdio.h"

#define N 2
struct student{
	int id;
	char name[20];
	int kaoqun;
	int biaoxian;
	int zuoye;
	int biji;
	int sum;
}stud[N],t;

int main()
{
	int i,j;
	for(i=0;i<N;i++){
		printf("请输入第%d个学生信息\n",i+1);
		scanf("%d %s",&stud[i].id,&stud[i].name);
		fflush(stdin);
		scanf("%d %d %d %d",&stud[i].kaoqun,&stud[i].biaoxian,&stud[i].zuoye,&stud[i].biji);
		stud[i].sum = stud[i].kaoqun*0.3+stud[i].biaoxian*0.3+stud[i].zuoye*0.3+stud[i].biji*0.1;
	}
	
	//排序
	
	for (i = 0; i < N - 1; i++){
	    for (j = 0; j < N - 1 - i; j++){ //按成绩对学生信息进行排序
	        if (stud[j].sum > stud[j + 1].sum){ //整型数字的比较
	            t = stud[j];
	            stud[j] = stud[j + 1];
	            stud[j + 1] = t;
	        }
	    }
	}
	//打印
	printf("学号\t姓名\t考勤\t表现\t作业\t笔记\t总分\t\n");
    for (i = 0; i < N; i++){
        printf("%d\t", stud[i].id);
        printf("%s\t", stud[i].name);
        printf("%d\t", stud[i].kaoqun);
        printf("%d\t", stud[i].biaoxian);
        printf("%d\t", stud[i].zuoye);
        printf("%d\t", stud[i].biji);
        printf("%d \n", stud[i].sum);
    }
	
    return 1;
}