C語言版商品庫存管理系統(tǒng)

1、建議使用VS打開運行#pragma once#include<stdio.h>typedef struct information /商品信息 char number20; /編號 char sname20; /名稱 float price; /價格 int count; /數量 char dath20; /生產日期 struct information *next;inf;void menu(inf *head); /顯示主菜單 inf *create(); /創(chuàng)建鏈表 void Input(inf *head); /輸入商品信息 void tianjia(inf *head);

2、 /添加商品信息 void output(inf *head); /輸出商品信息 void chaxun(inf *head); /查詢商品信息void chaxun_number(inf *head); /按編號查詢 void chaxun_sname(inf *head); /按名稱查詢 void xiugai(inf *head); /修改商品信息 void shanchu(inf *head); /刪除商品信息 void write_file(inf *head); /保存商品信息到文件 void paixu(inf *head);inf *Read_file(); /讀取文件內商品信

3、息 void freeh(inf *head); /退出程序 #define _CRT_SECURE_NO_WARNINGS#include <stdio.h> #include <stdlib.h> #include <string.h> #include <malloc.h> #include <windows.h>#include <mmsystem.h>#pragma comment(lib, "WINMM.lib")#include"標頭.h"void menu(inf *

4、head) /顯示菜單 PlaySound(TEXT("sounds背景.wav"), NULL, SND_FILENAME | SND_ASYNC | SND_LOOP); system("color 3B"); printf("tt*n"); printf("tttt歡迎進入商品庫存管理系統(tǒng)n"); printf("tt*n"); printf("n"); printf("tt|=|n"); printf("tt|_基本信息_|n"

5、); printf("tt| 1.商品信息錄入 | 2.添加商品信息 |n"); printf("tt| 3.查找商品信息 | 4.修改商品信息 |n"); printf("tt| 5.刪除商品信息 | 6.保存文件信息 |n"); printf("tt| 7.讀取文件信息 | 8.顯示商品信息 |n"); printf("tt| 9.按價格從高到低進行排序 |n"); printf("tt|_0.釋放鏈表。退出_|"); printf("nttt請輸入你的選項（0

6、-8）:n"); printf("n"); printf("t請輸入你的選擇: n");inf *create() /創(chuàng)建鏈表 inf *p; p = (inf *)malloc(sizeof(struct information); if (p = NULL) printf("鏈表創(chuàng)建失敗.n"); exit(0); p->next = NULL; return (p);void Input(inf *head) /錄入貨物信息 inf *p; int i,n; printf("請輸入：你想錄入多少個商品信

7、息: n "); scanf("%d", &n); for (i = 1; i <= n; i+) p = (inf *)malloc(sizeof(struct information); if (p = NULL) printf("結點創(chuàng)建失敗.n"); exit(0); printf("請輸入商品:編號，名稱，價格，數量：生產日期n"); printf("編號:"); scanf("%s", p->number); printf("名稱:"

8、); scanf("%s", p->sname); printf("價格:"); scanf("%f", &p->price); printf("數量:"); scanf("%d", &p->count); printf("生產日期："); scanf("%s",p->dath); p->next = NULL; while (head->next != NULL) head = head->nex

9、t; head->next = p; void tianjia( inf *head) /添加貨物信息 inf *p; int i,n; printf("請輸入：你想添加多少個商品信息: n"); scanf("%d", &n); for (i = 1; i <= n; i+) p = (inf *)malloc(sizeof(struct information); if (p = NULL) printf("鏈表結點創(chuàng)建失敗。n"); exit(0); printf("請輸入商品:編號，名稱，價格，數

10、量：n"); printf("編號:"); scanf("%s", p->number); printf("名稱:"); scanf("%s", p->sname); printf("價格:"); scanf("%f", &p->price); printf("數量:"); scanf("%d", &p->count); printf("生產日期："); scanf(

11、"%s",p->dath); p->next = NULL; while (head->next != NULL) head = head->next; head->next = p; void output(inf *head) /輸出貨物信息 int n = 0; inf *p; p = head->next; if (p = NULL) printf("鏈表為空，請先輸入信息！n"); return; while (p != NULL) n+; printf("商品信息：編號: %s，名稱:%s，價格:

12、%.2f 數量:%d 生產日期：%sn", p->number, p->sname, p->price, p->count,p->dath); p = p->next; printf("商品總數為：%d n", n);void chaxun(inf *head) /查詢貨物信息 函數 int a; printf("tt查詢信息n"); while (1) printf("t 1.按編號查詢n"); printf("t 2.按名稱查詢n"); printf("請

13、輸入你的選擇：n"); scanf("%d", &a); if (a = 1) chaxun_number(head);/調用按編號查詢的函數 break; if (a = 2) chaxun_sname(head);/調用按名稱查詢的函數 break; if (a != 1 && a != 2) printf("輸入錯誤！n"); break; getchar(); void chaxun_number(inf *head) /按編號查詢 char num20; inf *p; int i = -1; p = head

14、; printf("請輸入你要查詢的商品的編號："); scanf("%s", num); while (p->next != NULL) p = p->next; if (strcmp(p->number, num) = 0) i = 1; printf("已找到該商品信息n"); printf("貨物信息：編號:%s，名稱:%s，價格:%.2f.數量:%d,生產日期：%sn", p->number, p->sname, p->price, p->count,p->

15、dath); if (i<0) printf("沒有此商品信息！n");void chaxun_sname(inf *head) /按名稱查詢 char a20; int i = -1; inf *p; p = head; printf(" 請輸入要查找商品的名稱 :n"); scanf("%s", a); while (p->next != NULL) p = p->next; if (strcmp(p->sname, a) = 0) i = 1; printf("已找到該商品信息n");

16、 printf("商品信息：編號:%s，名稱:%s，價格:%.2f.數量:%d,生產日期n", p->number, p->sname, p->price, p->count,p->dath); if (i<0) printf("沒有此商品！n");void xiugai(inf *head) /修改貨物信息 printf("t*n"); printf("t 請輸入修改的方式：n"); printf("t1.單個信息全部修改。n"); printf("

17、;t2.單個信息逐個修改。n"); printf("t*n"); int a; printf("請輸入選項：n"); scanf("%d", &a); if (a = 1) char no20; int i = -1; inf *p; p = head; printf("請輸入要修改商品的編號：n"); scanf("%s", no); while (p->next != NULL) p = p->next; if (strcmp(p->number, no)

18、 = 0) i = 1; printf("已找到該商品n請輸入新的的編號，名稱，價格，數量：生產日期：n"); printf("編號:"); scanf("%s", p->number); printf("名稱:"); scanf("%s", p->sname); printf("價格:"); scanf("%f", &p->price); printf("數量:"); scanf("%d"

19、, &p->count); printf("生產日期："); scanf("%s",p->dath); if (i<0) printf("沒有此商品信息！n"); if (a = 2) inf *p = NULL; int b; char number220; char name2100; float price2; int count2; p = head->next; if (p = NULL) printf("沒有商品信息，請先保存商品信息!n"); printf("

20、tt 請輸入要修改的內容n"); printf("tt 1.修改編號 2.修改名稱n"); printf("tt 3.修改價格 4.修改數量n"); printf("tt 5.修改生產日期n"); printf("請選擇 n"); scanf("%d", &b); switch (b) case 1: printf("請輸入原商品編號:n"); scanf("%s", &number2); while (p != NULL) if

21、 (strcmp(p->number, number2) = 0) printf("已找到該商品n請輸入新的編號:n"); scanf("%s", &p->number); p = p->next; printf("該商品信息已修改成功。n"); break; case 2: printf("請輸入原名稱:n"); scanf("%s", &name2); while (p != NULL) if (strcmp(p->sname, name2) = 0)

22、 printf("請輸入新的名稱：n"); scanf("%s", &p->sname); break; p = p->next; printf("該商品信息已修改成功。n"); break; case 3: printf("請輸入該商品編號："); scanf("%s",&number2); printf("請輸入原價格:n"); scanf("%f", &price2); while (p != NULL) if (

23、strcmp(p->number, number2) = 0&&price2=p->price) printf("請輸入新的價格：n"); scanf("%f", &p->price); break; p = p->next; printf("該商品信息已修改成功。n"); break; case 4: printf("請輸入該商品編號："); scanf("%s",&number2); printf("請輸入被修改的數量:n&q

24、uot;); scanf("%d", &count2); while (p != NULL) if (count2 = p->count&&strcmp(p->number, number2) = 0) printf("請輸入新的數量：n"); scanf("%d", &p->count); break; p = p->next; printf("該商品信息已修改成功。n"); break; default: printf("修改內容有錯誤!n&qu

25、ot;); void shanchu(inf *head) /刪除貨物信息 int a; printf("tt 1.按編號刪除 2.按名稱刪除n"); printf("tt請輸入選項：n"); scanf("%d", &a); switch (a) case 1: char number20; int i = -1; inf *p, *h; p = head; printf("請輸入你要刪除的商品的編號：n"); scanf("%s", number); while (p->nex

26、t != NULL) if (strcmp(number, p->next->number) = 0) i = 1; h = p->next; p->next = p->next->next; free(h); printf("已刪除該商品信息。n"); break; p = p->next; if (i<0) printf("沒有此商品信息！n"); break; case 2: char name20; int i = -1; inf *p, *h; p = head; printf("請輸入

27、你要刪除的商品的名稱：n"); scanf("%s", name); while (p->next != NULL) if (strcmp(name, p->next->sname) = 0) i = 1; h = p->next; p->next = p->next->next; free(h); printf("已刪除該商品信息。n"); break; p = p->next; if (i<0) printf("沒有此商品信息！n"); break; void wri

28、te_file(inf *head) /保存貨物信息到文件 inf *p; FILE *fp; p = head; if (fp = fopen("商品信息.txt", "wb") = NULL) printf("Do not have this filen"); exit(0); while (p->next != NULL) p = p->next; fwrite(p, sizeof(struct information), 1, fp); fclose(fp);inf *Read_file() /讀取文件內的貨物信息

29、 inf *p, *d, *head; FILE *fp; head = (inf *)malloc(sizeof(struct information); p = (inf *)malloc(sizeof(struct information); if (fp = fopen("商品信息.txt", "rb") = NULL) printf("不能打開文件!n"); exit(0); if (fread(head, sizeof(struct information), 1, fp) d = head; while (fread(p

30、, sizeof(struct information), 1, fp) d->next = p; d = p; p = (inf *)malloc(sizeof(struct information); d ->next = NULL; fclose(fp); return (head);void freeh(inf *head) /釋放空間 退出程序 inf *p; p = (inf *)malloc(sizeof(struct information); p = head; while (head->next != NULL) head = head->next; free(p); p = head; free(p);void paixu(inf *head) inf *p=head,*q=NULL,*t=NULL,*subhead=NULL; int i, j, count = 0; while (p->next != NULL) count+; p = p->next; for (i = 0; i < count - 1