1 #include<stdio.h>
2 #include<malloc.h>
3 struct Student
4 {
5 int num; //学号
6 int total; //总分
7 char name[20]; //姓名
8 float score[3]; //3个课目的分数
9 };
10
11 int main()
12 {
13 int N,i,j;
14 printf("Please input N:");
15 scanf("%d",&N);
16 struct Student *stu = NULL;
17 stu = (struct Student*)malloc(sizeof(struct Student)*N); //创建一个结构体含有N个数据
18 for(i = 0; i < N; i++)
19 {
20 stu[i].total = 0;
21 printf("Please input the No%d student's number:",i+1);
22 scanf("%d",&stu[i].num);
23 printf("Please input the No%d student's name:",i+1);
24 scanf("%s",stu[i].name);
25 for(j = 0; j < 3; j++)
26 {
27 stu[i].score[j] = 0.0; //初始化float 老版本编译器如果不初始化可能会报错
28 printf("Please input the No%d student' score of %d:",i+1,j+1);
29 scanf("%f",&stu[i].score[j]);
30 stu[i].total = stu[i].total + (int)stu[i].score[j]; //求总分
31 }
32 }
33 for(i = 0; i < N; i++)
34 {
35 if(stu[i].total >= 240) //求总分大于240的
36 {
37 printf("%d %s\n",stu[i].num,stu[i].name);
38 }
39 }
40 for(i = 0; i < N; i++)
41 {
42 for(j = 0; j < 3; j++)
43 {
44 if(stu[i].score[j] < 60) //求科目小于60的
45 {
46 printf("%d %s %.2f\n",stu[i].num,stu[i].name,stu[i].score[j]);
47 }
48 }
49 // printf(" %d \n",stu[i].total);
50 }
51 free(stu); //释放
52 return 0;
53 }
