原发布者：沃流域滔

#include＂stdio.h＂#include＂stdlib.h＂/*标准库函数*/#include＂string.h＂/*字符串操作函数*/#defineMAX5#definePAGE2#definePRINT1printf(＂--------------------------------------------------------------\n＂);#definePRINT2printf(＂number--name--class--sex--birth(yyyy-mm-dd)--age\n＂);#definePRINT3printf(＂%4d%5s%6d%6d%8d-%2d-%2d%12d\n＂,students[i].num,students[i].name,\students[i].classes,students[i].sex,students[i].birthday.year,\students[i].birthday.month,students[i].birthday.day,students[i].age);intsum；/*用来记录学生数目*//*清屏函数*/voidclrscr(){getchar();system(＂cls＂)；}/*出生日期结构体类型*/structdate{intyear;intmonth;intday；}；/*学生结构体类型*/structstudents_type{intnum;charname[20];intclasses;intsex;structdatebirthday;intage;}students[MAX],t；/*存放N个学生纪录的结构体数组*//*保存信息*/intsave_message(intsum){FILE*fp;inti;if((fp=fopen(＂studentsmessage.txt＂,＂wt+＂))==NULL）/*貌似有问题*/{printf(＂wrong!\n＂);return0;}for(i=0;i