work_C_3_system.zip

#include <stdio.h> #define N 50 /*假设有50名学生*/ struct student { char number[20]; /* 存储用户的卡号信息*/ char name[20]; /* 存储用户的姓名信息*/ int lose; /* 记录用户的挂失锁定信息*/ float value; /* 存储用户的卡上即时余额*/ }; void Solution_Bynum(); void main() // 主函数 { char choose, yse_no; do { Main_Menu(); choose=getche(); switch(choose) { case '1':Create_File(); break; /*创建*/ case '2':Consumption(); break; /*消费*/ case '3':Add_Money(); break; /*充值*/ case '4':Add_Newcard(); break; /*添加加新饭卡*/ case '5':Logout_Card(); break; /*注销旧饭卡*/ case '6':Setup_Remove(); break; /*设置与解除挂失*/ // 该功能已给出主要函数，请同学自己实现Setup_Remove() case '7':Administrator_Enter(); break; /*管理员查询信息*/ case '0':break; /*创建*/ default: printf("\n您输入的信息不正确\n");break; } if(choose=='0')break; printf("您要回到主菜单吗？(Y/N)\t\n"); do { yse_no=getchar(); } while (yse_no!='Y'&&yse_no!='N'&&yse_no!='n'); }while(yse_no=='Y'||yse_no=='y'); } void Main_Menu() // 主菜单系界面 { printf("学生食堂饭卡管理系统\n"); printf("1:保存文件\n"); printf("2:买饭\n"); printf("3:充值\n"); printf("4:添加新饭卡\n"); printf("5:注销旧饭卡\n"); printf("6:挂失与解挂\n"); printf("7:查看全部信息(管理员)\n"); printf("0:退出\n"); printf("请选择:\n"); } void Create_File() // 添加饭卡数据信息，把信息写入文件中 { FILE* fp=NULL; int i=0; char yes_no; struct student card = {0}; fp=fopen ("card.txt", "w") ; if(fp==NULL) { printf("对不起,系统无法打开该文件。\n"); return; } printf("请您按要求填写以下信息\n"); do { printf("\n请输人要创建的新饭卡的卡号:"); scanf ("%s",card.number) ; printf("\n 请输人持有该饭卡学生的名字:"); scanf("%s",card.name); printf("\n请输人该饭卡的初始充值金额:"); scanf("%f",&card.value); fprintf(fp, "%10s%10s%10d%10.2f\n",card.number, card.name, card.lose, card.value); printf("创建成功! 要继续创建饭卡吗?(Y/N)"); do yes_no=getche(); while(yes_no!='Y'&&yes_no!='y'&& yes_no!='N'&& yes_no!='n'); }while (yes_no=='Y'|| yes_no=='y'); fclose(fp); } void Consumption() // 消费 { FILE* fp=NULL; int i=0,j=0,n=0,find=0; float temp=0; struct student card[N]={0}; // N自定义一个数值 char num1[20]="",yes_no; fp=fopen("card.txt","r"); if(fp==NULL) { printf("对不起,系统无法打开该文件。\n"); return; } while(feof(fp)==0) { fscanf (fp, "%s%s%d%f\n", card[i].number, card[i].name, &card[i].lose, &card[i].value); i++; } fclose(fp); do { printf("\n请输入要消费的饭卡卡号:"); scanf("%s", &num1); for(j=0;j<i;j++) if(strcmp(card[j].number, num1)==0) { find=1;n=j;break; } if(find==1) break; else { printf("对不起,系统找不到该饭卡的信息!\n要继续选择吗?(Y/N)"); do{ yes_no=getchar(); }while(yes_no!='Y'&&yes_no!='y'&& yes_no!='N'&& yes_no!='n'); } }while(yes_no== 'y'|| yes_no== 'Y'); if(find==1) { if(card[n].lose==1) { printf("该饭卡已挂失!\n"); return; } else if(card[n].value<5) { printf("您的饭卡余额不足,请及时充值\n"); return; } else { printf("\n请您输人消费金额:"); scanf("%f",&temp); if(card[n].value>0) { printf("\n消费前:￥%.2f\n",card[n].value); card[n].value=card[n].value-temp; printf("\n消费后:￥%.2f\n",card[n].value); } } } fp=fopen("card.txt","w"); for(j=0; j<i; j++) { fprintf(fp, "%10s%10s%10.2f\n", card[j].number, card[j].name, card[j].lose, card[j].value); } fclose(fp); } void Add_Money() // 充值 { FILE *fp=NULL; struct student card[N]={0}; int i=0,j=0,n=0,find=0,mtemp=0; char num2[20]="",yes_no='\0'; fp=fopen("card.txt","r"); if(fp==NULL) {printf("对不起，系统无法打开该文件.\n");return;} while(feof(fp)==0) { fscanf(fp,"%s%s%d%f\n", card[i].number, card[i].name, &card[i].lose, &card[i].value); i++; } fclose(fp); do{ printf("\n请您输要充值的卡卡号:"); scanf("%s",num2); for(j=0;j<i;j++) if(strcmp(card[j].number,num2)==0) {find=1;n=j;break;} if(find==1)break; else { printf("对不起,系统找不到该饭卡的信息!n要继续吗?(Y/N)"); do{ yes_no=getche(); }while(yes_no!='Y'&&yes_no!='N'&&yes_no!='y'&&yes_no!='n'); } }while(yes_no=='Y'||yes_no== 'y'); if(find==1) { printf("\n请输人您的充值金额:"); scanf("%d",&mtemp); printf("\n充值前:￥%.2f",card[n].value); card[n].value=card[n].value + mtemp; printf("\n充值后:￥%.2f",card[n].value); } fp=fopen("card.txt","w"); if(fp==NULL) {printf("对不起系统无法打开该文件。n");return;} for(j=0;j<i;j++) { fprintf(fp,"%10s%10s%10d%10.2f\n",card[j].number,card[j].name, card[j].lose,card[j].value); } fclose(fp); } void Add_Newcard() // 添加新卡 { FILE *fp=NULL; int i=0,j=0; char yes_no; struct student card[N]=(0); fp=fopen("card.txt","r"); if(fp==NULL) { printf("对不起，系统无法打开该文件.\n");return; } while(feof(fp)==0) { fscanf(fp,"%s%s%d%f\n",card[i].number,card[i].name,&card[i].lose, &card[i].value); i++; } fclose(fp); do{ printf("\n请输入要创建的新饭卡的卡号:"); scanf("%s", card[i].number); printf("\n 请输人持有该饭卡学生的名字:"); scanf("%s", card[i].name); printf("\n请输人该饭卡的初始充值金额:"); scanf("%f", &card[i].value); i++; printf("创建成功!要继续创建饭卡吗?(Y/N)"); do{ yes_no=getchar(); }while(yes_no!='Y'&&yes_no!='N'&&yes_no!='y'&&yes_no!='n'); }while(yes_no=='y'||yes_no== 'Y'); fp=fopen("card.txt","w"); if(fp==NULL) { printf("对不起,系统无法打开该文件\n");return; } for(j=0;j<i;j++) fprintf(fp,"%10s%10s%10d%10.2f\n", card[j].number, card[j].name, card[j].lose, card[j].value); fclose(fp); } void Logout_Card() // 注销旧饭卡 { FILE* fp=NULL; int i=0,j=0,m=0,n=0; char yes_no='\0',num2[20]=""; struct student card[N]={0}; fp=fopen("card.txt","r"); if(fp==NULL) {printf("对不起,系统无法打开该文件.\n");return;} while(feof(fp)==0) { fscanf(fp,"%s%s%d%f\n",card[i].number,card[i].name, &card[i].lose, &card[i].value); i++; } fclose(fp); do { printf("\n请输入要注销的饭卡卡号:"); scanf("%s",num2); for(j=0;j<i;j++) if(strcmp(card[j].number,num2)==0) {m=1;n=j;break;} if(m==1) { printf("注销成功!"); for(j=n;j<i-1;j++) { card[j]=card[j+1]; } } else printf("对不起，系统无法打开该文件.\n"); }while(yes_no=='y'||yes_no=='y'); fp=fopen("card.txt",