学生作业管理系统设计报告.doc

C语言作业管理程序设计报告院系 班级 姓名 学号 一C语言作业管理程序的要求定义结构体：Struct studentint num; /序号char *name; / 姓名long phone;/电话char *homework; /作业进入菜单前，密码3次校验。菜单:printf(=n);printf( 1. Openn);printf( 2. Listn);printf( 3. Addn);printf( 4. Saven);printf( 5. Exitn);printf(=n);输入每位同学的信息，当输入的序号=0，结束返回主菜单。用文件保存起来，下次可以打开，显示，并添加新的记录。要求工程管理若干文件，每个文件有若干函数。二 程序设计思路1. 每一个菜单的功能可以用一个函数实现，主函数用switch语句调用函数实现open，list，add，save功能，exit通过当输入5时函数退出循环实现2. 程序源文件分为7个文件，头文件student.h,主函数一个文件main.c，子函数password.c，open.c，list.c，add.c，save.c各一个文件。3.流程图三 源代码/*-student.h-*/struct student /头文件包含结构体定义和函数申明 int num; char name20; long phone; char homework20;int password();void open(struct student *stu);void list(struct student *stu);void add(struct student *stu,int *n);void save(struct student *stu,int *n);/*-main.c-*/# include # include # include # include # include student.h# define N 100void main() struct student stuN; /定义结构体数组 int i,j,t,flag; int *n; clrscr(); t=password(); /调用password函数，返回值赋给t if(t) printf(password error!n); return; printf( MENU n); /打印菜单 printf(=n); printf(1.openn); printf(2.listn); printf(3.addn); printf(4.saven); printf(5.exitn); printf(0.returnn); printf(=n); printf(please choose the function); scanf(%d,&flag); while(flag!=5) /当输入5时，退出循环，即可退出整个程序 switch(flag) case 0: printf( MENU n); /输入0时返回主菜单 printf(=n); printf(1.openn); printf(2.listn); printf(3.addn); printf(4.saven); printf(5.exitn); printf(0.returnn); printf(=n); printf(please choose the function); scanf(%d,&flag); break;case 1: open(stu); /输入1时调用open函数，打或新建文档 printf(press 0 to returnn); scanf(%d,&flag); break;case 2:list(stu); /输入2时调用list函数，列出文档内容 printf(press 0 to returnn); scanf(%d,&flag); break;case 3: add(stu,n); /输入3时调用add函数，向文档中加入内容scanf(%d,&flag);break;case 4:save(stu,n); /输入4时调用save函数，保存文档 printf(press 0 to returnn); scanf(%d,&flag); break;default :printf(error in input datan); /如果输入的不是1，2，3，4，5，则 printf(press 0 to returnn);/显示此信息 scanf(%d,&flag); break; /*-password.c-*/# include /password函数通过循环校验3次密码，如果3此都# include /输错则返回1# include # include # define N 100int password() char *str=12345; char *password; int i,j; clrscr(); for(i=0;i3;i+) printf(Please input password:);gets(password);if(strcmp(password,str)=0) break;else printf(password errorn); if(i=3)return 1;/*-open.c-*/# include / open函数，打开或新建文档# include # include # include # include student.h# define N 100void open() FILE *fp; clrscr(); if(fp=fopen(c:grade.txt,rt+)=NULL) if(fp=fopen(c:grade.txt,wt+)=NULL) printf(cant open or creat the filen);else printf(the file has been created in c: n); fclose(fp); else fclose(fp);printf(nfile opened successfullyn); /*-list.c-*/# include /list函数列出文档内容# include # include # include # include student.h# define N 100void list(struct student *stu) FILE *fp; int j,i; clrscr()； for(i=0;inum=0; if(fp=fopen(c:grade.txt,r)=NULL) printf(cant open the filen); getch(); exit(1); rewind(fp); for(i=0;i+) fscanf(fp,%d%s%ld%s, &(stu+i)-num,(stu+i)-name,&(stu+i)-phone,(stu+i)-homework); if(stu+i)-num=0) break; printf(numbertnametphonethomeworkn); printf(-n); for(j=0;jnum,(stu+j)-name,(stu+j)-phone,(stu+j)-homework); fclose(fp);/*-add.c-*/# include /add函数向文档中添加内容# include # include # include # include student.h# define N 100void add(struct student *stu,int *n) FILE *fp; int i; clrscr()； if(fp=fopen(c:grade.dat,at+)=NULL) printf(cant open the filen); getch(); exit(1); printf(Please input the number of students:); scanf(%d,n); printf(nnumbertnametphonethomeworkn); for(i=0;inum,(stu+i)-name,&(stu+i)-phone,(stu+i)-homework); fclose(fp); printf(tPress 4 to save );/*-save.c-*/# include /save函数保存文档# include # include # include # define N 100# include student.hvoid save(struct student *stu,int *n) FILE *fp; int i