程序代码：

#include<stdio.h>
#include<string.h>
    struct student        /*定义学生信息*/
    {char num;
     char name[20];
     char sex;
     char major;
     int chinese;
     int math;
     int english;
    };
    struct student str[30],*p;
void main()
{
    int com(struct student *score);
    int i;
    for(i=0;i<30;i++)        /*循环录入学生信息*/
    {scanf("%d\n",str[i].num);
     scanf("%s\n",str[i].name);
     scanf("%c\n",str[i].sex);
     scanf("%s\n",str[i].major);
     scanf("%d\n",str[i].chinese);
     scanf("%d\n",str[i].math);
     scanf("%d\n",str[i].english);
    }
    p=str;
    com(p);
}
    int com(int *score)
    {
        int a,b,c,d,e,i;
        a=b=c=d=e=0;
        for(i=0;i<30;i++)
        {switch(score[i]->chinese/10)
            case 0:
                case 1:
                    case 2:
                        case 3:
                            case 4:
                                case 5:e++;break;
                                    case 6:d++;break;
                                        case 7:c++;break;
                                            case 8:b++;break;
                                                case 9:
                                                    case 10:a++;break;
                                                        default :printf("error");
            printf("不及格：%d\n,及格：%d\n,中:%d\n,良:%d\n,优:%d\n",e,d,c,b,a);
        }



f:\新建文件夹\求和.cpp(35) : error C2227: left of '->chinese' must point to class/struct/union
f:\新建文件夹\求和.cpp(42) : error C2046: illegal case
f:\新建文件夹\求和.cpp(43) : error C2046: illegal case
f:\新建文件夹\求和.cpp(44) : error C2046: illegal case
f:\新建文件夹\求和.cpp(45) : error C2046: illegal case
f:\新建文件夹\求和.cpp(46) : error C2046: illegal case
f:\新建文件夹\求和.cpp(47) : error C2047: illegal default
f:\新建文件夹\求和.cpp(50) : fatal error C1004: unexpected end of file found    



那个switch的函数有点弄不来了。