2017级吉林大学软件学院C语言课程设计

#include<stdio.h> #include<stdlib.h> #include<string.h> #include "direct.h" #include <string.h> #include <io.h> #include<time.h> #include"conio.h" #include<dos.h> #include<windows.h> #include<stdio.h> #include<stdlib.h> #include<string.h> #include "direct.h" #include <string.h> #include <io.h> #include<time.h> #include"conio.h" #include<dos.h> #include<windows.h> void look(); /*声明打印所有小票函数*/ void search_fruit(); /*声明按水果种类打印销售量函数*/ void del(); /*声明删除函数*/ void sum(); /*声明统计销售额函数*/ void type(); /*声明输入函数*/ void bigfind(); /*声明大额购物信息查看函数*/ void timefind(); void vipfind(); void change(); void menu(); void loading(); struct gouwu { int num; struct fruit { char a[21], b[21], c[21], d[21], e[21]; }f; struct geshu { int a, b, c, d, e; }g; float heji; char zhifu[10]; char time[64]; }cos[31], cos1[31], cos2[31], cos3[31], cos4[31], cos5[31]; char timm[64]; int main() /*主函数即用户的操作界面*/ { loading(); menu(); } void type() { system("CLS"); FILE *fp, *fq; time_t times; tm *tim; char *wday[] = { "日","一","二","三","四","五","六" }; struct tm *tblock; int F, t, i, m, jieshu = 1, A, xuhao; float price1 = 5.00, price2 = 4.00, price3 = 3.00, price4 = 2.00, price5 = 1.00, H, p2, p1, p3, p4, p5, M1, M2, money2, v1, v2; char ch[10], c[4] = { '1','0','0','0' }; fp = fopen("xuhao.txt", "rb"); if (fp == NULL) { printf("打开序号文件失败\n"); printf("按任意键返回主菜单\n"); getch(); menu(); } fread(&xuhao, sizeof(int), 1, fp); xuhao = xuhao * 1 + 1; fclose(fp); for (i = xuhao - 1; i <= 30; i++) { printf("********************************************\n"); { p1 = 0; p2 = 0; p3 = 0; p4 = 0; p5 = 0; fp = fopen("xuhao.txt", "rb"); if (fp == NULL) { printf("打开失败，请先录入信息\n"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } fread(&xuhao, sizeof(int), 1, fp); xuhao = xuhao * 1 + 1; fclose(fp); printf("%d", xuhao - 1); cos[i].num = xuhao - 1; printf("\n"); printf("请输入编号（1苹果2香蕉3橘子4桃子5梨）与数量\n"); printf("选购结束请输入：0 0\n"); printf("============================================\n"); printf("水果种类 单价 数量 合计\n"); for (t = 1; t <= 6; t++) { scanf("%d%d", &A, &m); switch (A) { case 0:jieshu = 0; break; case 1:printf("苹果 %.2f %d %.2f\n", price1, m, p1 = m*price1); strcat(cos[i].f.a, "苹果 5.00元/斤"); cos[i].g.a = m; break; case 2:printf("香蕉 %.2f %d %.2f\n", price2, m, p2 = m*price2); strcat(cos[i].f.b, "香蕉 4.00元/斤"); cos[i].g.b = m; break; case 3:printf("橘子 %.2f %d %.2f\n", price3, m, p3 = m*price3); strcat(cos[i].f.c, "橘子 3.00元/斤"); cos[i].g.c = m; break; case 4:printf("桃子 %.2f %d %.2f\n", price4, m, p4 = m*price4); strcat(cos[i].f.d, "桃子 2.00元/斤"); cos[i].g.d = m; break; case 5:printf("梨 %.2f %d %.2f\n", price5, m, p5 = m*price5); strcat(cos[i].f.e, "梨子 1.00元/斤"); cos[i].g.e = m; break; default: {jieshu = 3; printf("商品错误\n"); } break; } if (jieshu == 3) { break; } if (jieshu == 0) break; } if (jieshu == 3) { printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } H = p1 + p2 + p3 + p4 + p5; if (H > 1000 || H <= 0) { printf("购买商品不在价格限额之内！"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } printf("============================================\n"); printf("合计：%.2f\n", H); printf("请选择付款方式：1（现金支付）2（会员卡支付）\n3(进行会员卡充值并付款) 会员卡支付打8折！\n"); scanf("%d", &F); if (F == 1) { printf("付款金额："); scanf("%f", &M1); strcpy(cos[i].zhifu, "现金"); M2 = M1 - H; if (M2 >= 0) printf("找零金额：%.2f\n", M2); else { printf("支付金额不足！"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } } else if (F == 2) { printf("请输入会员卡号："); scanf("%s", ch); strcat(ch, ".txt"); fq = fopen(ch, "rb"); if (fq == NULL) { printf("会员卡不存在！"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } strcpy(cos[i].zhifu, "会员卡"); printf("原价：%.2f,会员价：%.2f\n", H, H*0.8); /*strcat(cos[i].zhifu, ch); strcat(cos[i].zhifu, "\n");*/ fread(&v1, sizeof(float), 1, fq); printf("会员卡当前余额为：%.2f", v1); money2 = v1 - H*0.8; printf("支付后余额为：%.2f\n", money2); fclose(fq); fq = fopen(ch, "wb"); if (fq == NULL) { printf("文件打开错误！"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } fwrite(&money2, sizeof(float), 1, fq); fclose(fq); H = H*0.8; } else if (F == 3) { printf("请输入要充值的会员卡号:"); scanf("%s", ch); strcat(ch, ".txt"); fq = fopen(ch, "rb"); if (fq == NULL) { printf("会员卡不存在！\n"); printf("请重新输入卡号："); scanf("%s", ch); strcat(ch, ".txt"); fq = fopen(ch, "rb"); if (fq == NULL) { printf("会员卡不存在！\n"); printf("请重新输入卡号："); scanf("%s", ch); strcat(ch, ".txt"); fq = fopen(ch, "rb"); if (fq == NULL) { printf("输入次数过多！\n"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } } } fread(&v1, sizeof(float), 1, fq); fclose(fq); strcpy(cos[i].zhifu, "会员卡"); printf("会员卡充值\n"); printf("请输入充值金额并输入任意符号表示结束："); scanf("%f\n", &v2); getchar(); printf("原价：%.2f,会员价：%.2f\n", H, H*0.8); money2 = v1 + v2; money2 = money2 - H; fq = fopen(ch, "wb"); fwrite(&money2, sizeof(float), 1, fq); printf("已自动支付！\n会员卡余额还有："); printf("%.2f\n", money2); fclose(fq); H = H*0.8; } else { printf("指令错误！"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } times = time(NULL); tim = localtime(&times); strftime(timm, 64, "%Y-%m-%d %H:%M:%S", tim); strcpy(cos[i].time, timm); cos[i].heji = H; fp = fopen("购物信息.txt", "ab"); if (fp == NULL) { printf("打开失败！\n"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } fwrite(&cos[i], sizeof(struct gouwu), 1, fp); fclose(fp); } printf("------------------谢谢惠顾------------------\n"); fp = fopen("xuhao.txt", "wb"); if (fp == NULL) { printf("序号写入失败！\n"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } fwrite(&xuhao, sizeof(int), 1, fp); fclose(fp); printf("%s\n", cos[i].time); printf("********************************************\n"); printf("下一单请输入：1\n"); printf("结束程序请输入：8\n"); scanf("%d", &jieshu); if (jieshu == 8) { printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } else if (jieshu == 1) jieshu = 1; else { printf("输入错误！\n"); printf("\n\n\n\t\t\t按任意键返回菜单"); getch(); menu(); break; } } } void look() /*定义打印小票函数*/ { system("CLS"); FILE *fp1, *fp; char ch; int sum, i, b, num[3] = { 0,0,0 }; fp = fopen("xuhao.txt", "rb"); if (fp == NULL) { printf("打开失败，请先录入信息\n"); printf("按任意键返回主菜单"); getch(); menu(); } fread(&b, sizeof(int), 1, fp); fclose(fp); fp1 = fopen("购物信息.txt", "r"); if (fp1 == NULL) { printf("打开失败，请先录入信息