C语言 写的小程序 C语言 C语言C语言

/*************************************************** * student manage system * ***************************************************/ #include<stdio.h> #include<stdlib.h> #include<conio.h> #include<string.h> #include<time.h> #include<windows.h> #define NAME 20 #define SEX 10 #define BIRTH 20 #define ADDR 20 #define POTO 16 #define DAK 7 #define SCHOOL 20 #define STUDENTMAX 100 typedef struct studentinfo { char name[NAME]; char sex[SEX]; char birth[BIRTH]; char addr[ADDR]; char poto[POTO]; char dak[DAK]; char school[SCHOOL]; }; typedef struct studentscore { char name[NAME]; int ID; int score[6]; int aver; int sum; }; typedef struct allstudentinfo { struct studentinfo student1; struct studentscore student2; }; /*************************************************** * student info file * * student score file * * log student information * * log student score * ***************************************************/ FILE *infofile=NULL; FILE *scorefile=NULL; //char filename1[]="E:\\Studentinfo.dat"; //char filename2[]="E:\\Studentscore.dat"; char filename1[]="Studentinfo.dat"; char filename2[]="Studentscore.dat"; /*************************************************** * checkcode() * ***************************************************/ int checkcode() { FILE *fp; char co[20]={0}; char co1[20]={0}; int i; if((fp=fopen("stu_code.dat","rb"))==NULL) /*身份验证*/ { printf("please set your identify\n"); printf("passcode:"); scanf("%s",co); /* i=0; while((co1[i]=getch())!='\r') { putchar('*'); i++; } co1[i]='\0'; */ fp=fopen("stu_code.dat","wb+"); for(i=0;i<20;i++) fwrite(&co[i],sizeof(char),1,fp); fclose(fp); return 0; } else { system("cls"); for(i=0;i<20;i++) fread(&co[i],sizeof(char),1,fp); fclose(fp); printf("\n\n\n\t\t\t请输入你的密码:"); //scanf("%s",co1); i=0; while((co1[i]=getch())!='\r') { putchar('*'); i++; } co1[i]='\0'; if(strcmp(co,co1)!=0) /*密码校验*/ { return 1; } system("cls"); } return -1; } /*************************************************** * 修改密码 * ****************************************************/ void modifycode() { FILE *fp; char co[20]={0}; char co1[20]={0}; char co2[20]={0}; int i; if((fp=fopen("stu_code.dat","wb+"))==NULL) { printf("\a\n\n\n\n\n\n"); printf("\t--------------------------------------------------------------\n"); printf("\t| 请确认磁盘已满或stu_code件没有损坏、且不为空 |\n"); printf("\t--------------------------------------------------------------\n"); getch(); } else { system("cls"); for(i=0;i<20;i++) fread(&co[i],sizeof(char),1,fp); printf("\n\n\n\t\t\t请输入你的新密码:"); scanf("%s",co1); printf("\n\n\n\t\t\t请确认你的密码:"); scanf("%s",co2); if(strcmp(co1,co2)) { system("cls"); printf("\a\n\n\n\n\n\n"); printf("\t--------------------------------------------------------------\n"); printf("\t| 两次输入的密码不一样 修改失败 |\n"); printf("\t--------------------------------------------------------------\n"); getch(); fclose(fp); return ; } else { for(i=0;i<20;i++) fwrite(&co1[i],sizeof(char),1,fp); fclose(fp); system("cls"); printf("\a\n\n\n\n\n\n"); printf("\t--------------------------------------------------------------\n"); printf("\t| 密 码 修 改 成 功 |\n"); printf("\t--------------------------------------------------------------\n"); getch(); } } } /*************************************************** * password() * ***************************************************/ void password() { int sign=0; time_t start,end; sign=checkcode(); /*************验证用户名 密码*****************/ if(sign==1) { system("cls"); printf("\n\n\n\n\n\n"); printf("\t\t%c-----------------------------------------------%c\n",017,017); printf("\t\t|-----------------------------------------------|\n"); printf("\t\t|----------- 密码不正确 请重新登陆 -----------|\n"); printf("\t\t|-----------------------------------------------|\n"); printf("\t\t%c-----------------------------------------------%c\n\n\n",016,016); start=time(NULL); end=time(NULL); while(end-start<2) { end=time(NULL); } exit(0); } else { system("cls"); printf("\n\n\n\n\n"); printf("\t\t-------------------------------------------------\n"); printf("\t\t|-----------------------------------------------|\n"); printf("\t\t| |\n"); printf("\t\t| 欢迎来到管理系统 |\n"); printf("\t\t| |\n"); printf("\t\t|-----------------------------------------------|\n"); printf("\t\t-------------------------------------------------\n"); printf("\n\n\n\n\n\n\n\n"); printf("\t\t\t\t\t\t请稍等3秒后登陆管理系统主界面"); start=time(NULL); end=time(NULL); while(end-start<3) { end=time(NULL); } } return ; } /*************************************************** * showmenu() * ****************************************************/ int showmenu() { int in; char ch; printf("\n\n"); system("cls"); printf("\t\t-------------------------------------------------\n"); printf("\t\t| 学生个人管理系统 |\n"); printf("\t\t|-----------------------------------------------|\n"); printf("\t\t| 1、学生个人信息管理 |\n"); printf("\t\t| |\n"); printf("\t\t| 2、学生个人成绩管理 |\n"); printf("\t\t| |\n"); printf("\t\t| 3、关于本系统 |\n"); printf("\t\t| |\n"); printf("\t\t| 4、修改密码 |\n"); printf("\t\t| |\n"); printf("\t\t| 5、退出系统 |\n"); printf("\t\t-------------------------------------------------\n"); printf("请您正确选择:"); while(scanf("%d",&in)!=1) /*非数字的判断*/ { while((ch=getchar())!='\n') putchar(ch); return in; } fflush(stdin); return in; } /*************************************************** * submeun() * ****************************************************/ int submeun() { int in; system("cls"); printf("\n\n"); printf("\t\t------------------------------------------------\n"); printf("\t\t| 学生个人信息管理 |\n"); printf("\t\t|----------------------------------------------|\n"); printf("\t\t| 1、录入个人信息 |\n"); printf("\t\t| |\n"); printf("\t\t| 2、修改个人信息 |\n"); printf("\t\t| |\n"); printf("\t\t| 3、查询个人信息 |\n"); printf("\t\t| |\n"); printf("\t\t| 4、浏览所有信息 |\n"); printf("\t\t| |\n"); printf("\t\t| 5、删除个人信息 |\n"); printf("\t\t| |\n"); printf("\t\t| 6、退出系统 |\n"); printf("\t\t------------------------------------------------\n");