#include<stdio.h>
struct stu
{
    int num;
    char name[20];
    char sex;
    float score;
}boy[5] = {
    {1,"a",'m',100},
    {2,"b",'m',80},
    {3,"c",'m',60},
    {4,"d",'m',40},
    {5,"e",'m',20},
};
int main()
{
    struct stu *ps;
    printf("NO\tName\tSex\tScore\n");
    for (ps = boy; ps < boy + 5; ps++)
    {
        printf("%d\t", ps->num);
        printf("%s\t", ps->name);
        printf("%c\t", ps->sex);
        printf("%f\n", ps->score);
    }
}