c语言文件，向student.stu写入五个结构体关于学生信息数据，并显示数据在屏幕上

傷城~ 2023-01-01 10:59 66阅读 0赞

#include<stdio.h>
     typedef struct student{ 
       char name[8];
       long num;
       int score;
    }student ;
    #define N 5
    void main()
    {   
       int i,j;
       struct student stu[N];
       FILE *fp;  
       char ch;char str1[5]="STU\n";char str2[5]="0";char str3[5]="\n";
    {  
       fp = fopen("student.stu","wb+");
       fputs(str1,fp);
       fclose(fp);
    }//写入STU标志
    {  
       fp = fopen("student.stu","ab+");
       printf("请输入您的班级名称\n");
       scanf("%s",str2);
       fputs(str2,fp);
    }//写入用户班级名
       fputs(str3,fp);
       fclose(fp);//换行
       printf("该文件前缀班级已经写入\n");   
    { 
       for(i=0;i<N;i++)
          { 
            printf("请输入第%d个学生的档案:\n",i+1);
            printf("学号:");scanf("%d",&stu[i].num); 
            printf("成绩:");scanf("%d",&stu[i].score);
            printf("姓名:");scanf("%s",stu[i].name);
          }//定义结构体并输入数据
       for(i=0;i<N;i++)
       { 
          fp = fopen("student.stu","ab+");fwrite(stu[i].name,sizeof(student),1,fp);fputs(str3,fp);fclose(fp);
          fp = fopen("student.stu","ab+");fwrite(&stu[i].num,sizeof(student),1,fp);fputs(str3,fp);fclose(fp);
          fp = fopen("student.stu","ab+");fwrite(&stu[i].score,sizeof(student),1,fp);fputs(str3,fp);fclose(fp);
       }
       printf("该文件已经写入学生信息\n");
    }//输入与写入
    fp = fopen("student.stu","ab+");
    fread(str1,sizeof(str1),1,fp);
    fclose(fp);
    fp = fopen("student.stu","ab+");
    fread(str2,sizeof(str2),1,fp);
    fclose(fp);
     for(i=0;i<N;i++)
       { 
         fp = fopen("student.stu","ab+");fread(stu[i].name,sizeof(student),1,fp);fclose(fp);printf("\n");
         fp = fopen("student.stu","ab+");fread(&stu[i].num,sizeof(student),1,fp);fclose(fp);printf("\n");
         fp = fopen("student.stu","ab+");fread(&stu[i].score,sizeof(student),1,fp);fclose(fp);printf("\n");
       }
    printf("已经显示完毕\n");   
    
    }