#include"stdio.h"
#include<stdlib.h>
#include<ctype.h>
#define N 3
struct score
{
    int chinese;
    int math;
    int english;
    int comin;
    int basis;
};

struct examin
{
    int num;
    int identnum;
    char wenli[10];
    struct score  fen;
};

int main()
{
    struct examin te[N];//结构体变量的定义
    int i;
    FILE * fp;
    if((fp=fopen("c://score.txt","w"))==NULL)
    {
        printf("can't open file score.txt\n");
        exit(0);
    }
    printf("按顺序输入考号、身份证号、文理科、考试成绩(语文、数学、外语、综合、基本能力)：\n");
    for(i=0;i<N;i++)
    {
        printf("输入考生 %d 的信息:",i+1);
        
        scanf("%d",&te[i].num);
        scanf("%d",&te[i].identnum);
        scanf("%s",te[i].wenli);
        scanf("%lf %lf %lf %lf %lf",&te[i].fen.chinese,&te[i].fen.math,
            &te[i].fen.english,&te[i].,&te[i].fen.basis);
        
    }
    fwrite(&te,sizeof(struct examin),N,fp);//将N个结构体的变量的内容写入文件
    fclose(fp);
        
   
}

怎么看出来的