程序代码：

case 2:
                p = fopen("record.txt", "rb+");
                if (p == NULL)
                {
                    printf("文件打开失败!\n");
                    exit(0);
                }
                else
                {
                    printf("Your previous records are:\n");
                    while (fread(&student, sizeof(struct student), 1, p))
                    {                        
                        printf("%s %d %d seconds\n", student.no, student.grade, student.time);    
                        
                    }
                    fclose(p);
                }
                
                break;

[此贴子已经被作者于2016-6-24 09:01编辑过]