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1、-作者xxxx-日期xxxxC语言版商品库存管理系统【精品文档】建议使用VS打开运行#pragma once#includetypedef struct information /商品信息 char number20; /编号 char sname20; /名称 float price; /价格 int count; /数量 char dath20; /生产日期 struct information *next;inf;void menu(inf *head); /显示主菜单 inf *create(); /创建链表 void Input(inf *head); /输入商品信息 void ti

2、anjia(inf *head); /添加商品信息 void output(inf *head); /输出商品信息 void chaxun(inf *head); /查询商品信息void chaxun_number(inf *head); /按编号查询 void chaxun_sname(inf *head); /按名称查询 void xiugai(inf *head); /修改商品信息 void shanchu(inf *head); /删除商品信息 void write_file(inf *head); /保存商品信息到文件 void paixu(inf *head);inf *Read_

3、file(); /读取文件内商品信息 void freeh(inf *head); /退出程序 #define _CRT_SECURE_NO_WARNINGS#include #include #include #include #include #include #pragma comment(lib, WINMM.lib)#include标头.hvoid menu(inf *head) /显示菜单 PlaySound(TEXT(sounds背景.wav), NULL, SND_FILENAME | SND_ASYNC | SND_LOOP); system(color 3B); print

5、ntf(nttt请输入你的选项（0-8）:n); printf(n); printf(t请输入你的选择: n);inf *create() /创建链表 inf *p; p = (inf *)malloc(sizeof(struct information); if (p = NULL) printf(链表创建失败.n); exit(0); p-next = NULL; return (p);void Input(inf *head) /录入货物信息 inf *p; int i,n; printf(请输入：你想录入多少个商品信息: n ); scanf(%d, &n); for (i = 1;

6、i number); printf(名称:); scanf(%s, p-sname); printf(价格:); scanf(%f, &p-price); printf(数量:); scanf(%d, &p-count); printf(生产日期：); scanf(%s,p-dath); p-next = NULL; while (head-next != NULL) head = head-next; head-next = p; void tianjia( inf *head) /添加货物信息 inf *p; int i,n; printf(请输入：你想添加多少个商品信息: n); sca

7、nf(%d, &n); for (i = 1; i number); printf(名称:); scanf(%s, p-sname); printf(价格:); scanf(%f, &p-price); printf(数量:); scanf(%d, &p-count); printf(生产日期：); scanf(%s,p-dath); p-next = NULL; while (head-next != NULL) head = head-next; head-next = p; void output(inf *head) /输出货物信息 int n = 0; inf *p; p = hea

8、d-next; if (p = NULL) printf(链表为空，请先输入信息！n); return; while (p != NULL) n+; printf(商品信息：编号: %s，名称:%s，价格:%.2f 数量:%d 生产日期：%sn, p-number, p-sname, p-price, p-count,p-dath); p = p-next; printf(商品总数为：%d n, n);void chaxun(inf *head) /查询货物信息函数 int a; printf(tt查询信息n); while (1) printf(t 1.按编号查询n); printf(t

9、2.按名称查询n); printf(请输入你的选择：n); scanf(%d, &a); if (a = 1) chaxun_number(head);/调用按编号查询的函数 break; if (a = 2) chaxun_sname(head);/调用按名称查询的函数 break; if (a != 1 & a != 2) printf(输入错误！n); break; getchar(); void chaxun_number(inf *head) /按编号查询 char num20; inf *p; int i = -1; p = head; printf(请输入你要查询的商品的编号：)

10、; scanf(%s, num); while (p-next != NULL) p = p-next; if (strcmp(p-number, num) = 0) i = 1; printf(已找到该商品信息n); printf(货物信息：编号:%s，名称:%s，价格:%.2f.数量:%d,生产日期：%sn, p-number, p-sname, p-price, p-count,p-dath); if (inext != NULL) p = p-next; if (strcmp(p-sname, a) = 0) i = 1; printf(已找到该商品信息n); printf(商品信息：

11、编号:%s，名称:%s，价格:%.2f.数量:%d,生产日期n, p-number, p-sname, p-price, p-count,p-dath); if (inext != NULL) p = p-next; if (strcmp(p-number, no) = 0) i = 1; printf(已找到该商品n请输入新的的编号，名称，价格，数量：生产日期：n); printf(编号:); scanf(%s, p-number); printf(名称:); scanf(%s, p-sname); printf(价格:); scanf(%f, &p-price); printf(数量:);

12、 scanf(%d, &p-count); printf(生产日期：); scanf(%s,p-dath); if (inext; if (p = NULL) printf(没有商品信息，请先保存商品信息!n); printf(tt 请输入要修改的内容n); printf(tt 1.修改编号 2.修改名称n); printf(tt 3.修改价格 4.修改数量n); printf(tt 5.修改生产日期n); printf(请选择 n); scanf(%d, &b); switch (b) case 1: printf(请输入原商品编号:n); scanf(%s, &number2); whil

13、e (p != NULL) if (strcmp(p-number, number2) = 0) printf(已找到该商品n请输入新的编号:n); scanf(%s, &p-number); p = p-next; printf(该商品信息已修改成功。n); break; case 2: printf(请输入原名称:n); scanf(%s, &name2); while (p != NULL) if (strcmp(p-sname, name2) = 0) printf(请输入新的名称：n); scanf(%s, &p-sname); break; p = p-next; printf(该

14、商品信息已修改成功。n); break; case 3: printf(请输入该商品编号：); scanf(%s,&number2); printf(请输入原价格:n); scanf(%f, &price2); while (p != NULL) if (strcmp(p-number, number2) = 0&price2=p-price) printf(请输入新的价格：n); scanf(%f, &p-price); break; p = p-next; printf(该商品信息已修改成功。n); break; case 4: printf(请输入该商品编号：); scanf(%s,&n

15、umber2); printf(请输入被修改的数量:n); scanf(%d, &count2); while (p != NULL) if (count2 = p-count&strcmp(p-number, number2) = 0) printf(请输入新的数量：n); scanf(%d, &p-count); break; p = p-next; printf(该商品信息已修改成功。n); break; default: printf(修改内容有错误!n); void shanchu(inf *head) /删除货物信息 int a; printf(tt 1.按编号删除 2.按名称删除

16、n); printf(tt请输入选项：n); scanf(%d, &a); switch (a) case 1: char number20; int i = -1; inf *p, *h; p = head; printf(请输入你要删除的商品的编号：n); scanf(%s, number); while (p-next != NULL) if (strcmp(number, p-next-number) = 0) i = 1; h = p-next; p-next = p-next-next; free(h); printf(已删除该商品信息。n); break; p = p-next;

17、 if (inext != NULL) if (strcmp(name, p-next-sname) = 0) i = 1; h = p-next; p-next = p-next-next; free(h); printf(已删除该商品信息。n); break; p = p-next; if (inext != NULL) p = p-next; fwrite(p, sizeof(struct information), 1, fp); fclose(fp);inf *Read_file() /读取文件内的货物信息 inf *p, *d, *head; FILE *fp; head = (i

18、nf *)malloc(sizeof(struct information); p = (inf *)malloc(sizeof(struct information); if (fp = fopen(商品信息.txt, rb) = NULL) printf(不能打开文件!n); exit(0); if (fread(head, sizeof(struct information), 1, fp) d = head; while (fread(p, sizeof(struct information), 1, fp) d-next = p; d = p; p = (inf *)malloc(s

19、izeof(struct information); d -next = NULL; fclose(fp); return (head);void freeh(inf *head) /释放空间退出程序 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

20、; int i, j, count = 0; while (p-next != NULL) count+; p = p-next; for (i = 0; i next; q = p-next; for (j = 0; j price price) subhead-next = p-next; p-next = q-next; q-next = p; t= p; p = q; q = t; subhead = subhead-next; p = p-next; q = q-next; output(head);int main() inf *head; head = (inf*)malloc(

21、sizeof(struct information); head = create(); while (1) menu(head); int h; scanf(%d, &h); switch (h) /功能选择 case 1: Input( head); Sleep(500); break; case 2: tianjia( head); Sleep(1000); break; case 3: chaxun(head); break; case 4: xiugai(head); write_file(head); break; case 5: shanchu(head); write_file

22、(head); output(head); break; case 6: write_file(head); printf(t已经成功保存信息！tn); Sleep(1000); break; case 7: head-next = Read_file(); output(head); Sleep(1000); break; case 8: output(head); Sleep(1000); break; case 9: paixu(head); Sleep(1000); break; case 0: freeh(head); printf(t-已经退出程序-tn); exit(0); default: printf(输入错误n);

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