fun.c
#include "head.h"void InitHouse(house* ph)   //初始化仓库
{assert(ph);ph->arr = (Data*)malloc(sizeof(Data) * DafaultSize);ph->capacity = 4;ph->sz = 0;
}void CheckCapacity(house* ph)
{assert(ph);if (ph->sz == ph->capacity)   // 说明{int newcapacity = 2 * ph->capacity;Data* tmp = (Data*)realloc(ph->arr, newcapacity * sizeof(Data));assert(tmp);   //tmp为空则表示扩容失败，直接退出ph->arr = tmp;ph->capacity = newcapacity;}
}void Add(house* ph)
{assert(ph);CheckCapacity(ph);int sz = ph->sz;printf("请依次输入以下基本信息:>\n");printf("id:\t");scanf("%s", ph->arr[sz].id);printf("种类:\t");scanf("%s", ph->arr[sz].type);printf("名称:\t");scanf("%s", ph->arr[sz].name);printf("价格:\t");scanf("%f", &ph->arr[sz].price);printf("数量:\t");scanf("%d", &ph->arr[sz].num);ph->sz++;printf("信息录入成功! 即将跳转回主界面\n");Sleep(1000);system("cls");
}int Search(house* ph, char* id)
{assert(ph);for (int i = 0; i < ph->sz; i++){if (strcmp(id, ph->arr[i].id) == 0)return i;}return -1;            //  说明没有找到
}void Del(house* ph)
{printf("请输入待删除商品的id值:>");char id[10];scanf("%s", id);int ret = Search(ph, id);if (ret == -1)printf("目标商品不存在,删除失败!");else{for (int i = ret; i < ph->sz - 1; i++){ph->arr[i] = ph->arr[i + 1];}ph->sz--;printf("删除成功!即将返回主菜单!");}Sleep(2000);system("cls");
}void Find(house* ph)
{printf("请输入待查找商品id值:");char tmp[10] = { 0 };scanf("%s", tmp);int ret = Search(ph, tmp);if (ret == -1)printf("该商品不存在!即将跳转回主菜单\n");else{printf("id\t种类\t名字\t数量\t价格\t \n");printf("%s\t%s\t%s\t%d\t%.2lf￥\t \n",ph->arr[ret].id, ph->arr[ret].type, ph->arr[ret].name,ph->arr[ret].num, ph->arr[ret].price);printf("查找成功! 按任意键跳转回主界面\n"),system("pause");}system("cls");
}int CmpPrice(void* a, void* b)
{Data* aa = (Data*)a;Data* bb = (Data*)b;return aa->price > bb->price;
}int CmpNum(void* a, void* b)
{Data* aa = (Data*)a;Data* bb = (Data*)b;return aa->num > bb->num;
}void Sort(house* ph)
{printf("********************\n");printf("**[请选择排序依据]**\n");printf("**----------------**\n");printf("** 0.价格         **\n");printf("** 1.数量         **\n");printf("********************\n");int input = 0;while (1){scanf("%d", &input);if (input >= 0 && input <= 1)break;elseprintf("输入错误请重新输入:\n");}int(*arr[4])(void*, void*) = { CmpPrice, CmpNum};   //函数指针数组qsort(ph->arr, ph->sz, sizeof(Data), arr[input]);printf("排序成功! 即将跳转回主界面\n");Sleep(1000);system("cls");
}void Show(house* ph)
{printf("id\t种类\t名字\t数量\t价格\t \n");for (int i = 0; i < ph->sz; i++)printf("%s\t%s\t%s\t%d\t%.2lf￥\t \n",ph->arr[i].id, ph->arr[i].type, ph->arr[i].name,ph->arr[i].num, ph->arr[i].price);system("pause");system("cls");
}head.h
#pragma once
#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <windows.h>#define DafaultSize 4typedef struct Data
{char id[10];          // idchar type[20];       // 种类char name[20];       // 名字int num;             // 数量float price;         // 价格}Data;typedef struct warehouse
{Data* arr;        // 存储数据int capacity;     // 数组的容量int sz;           // 当前数据的个数
}house;void menu();void InitHouse(house* ph);void CheckCapacity(house* ph);void Add(house* ph);int Search(house* ph, char* id);void Del(house* ph);void Find(house* ph);void Sort(house* ph);void Show(house* ph);mian.c#include "head.h"void menu()
{printf("***********************\n");printf("**    仓库管理系统   **\n");printf("**-------------------**\n");printf("**      1. Add       **\n");  // 增加数据printf("**      2. Del       **\n");  // 删除数据printf("**      3. Find      **\n");  // 排序数据printf("**      4. Sort      **\n");  // 查找数据printf("**      5. Show      **\n");  // 展示所有数据printf("**      0. Exit      **\n");  // 退出程序printf("**-------------------**\n");printf("***********************\n");
}void Login(house* ph)   // 从文本中读出之前的仓库货物数据
{printf("原数数据加载中...\n");FILE* fr = fopen("warehouse.txt", "ab+");   //使用a是为了防止原先该文件不存在fseek(fr, 0, SEEK_SET);                     //是文件指针指向开头int ret = 1;while (1){CheckCapacity(ph);ret = fread(ph->arr + ph->sz, sizeof(Data), 1, fr); //返回值为0表示读取结束if (ret == 0){break;}ph->sz++;}Sleep(1000);                        // 延时是为了防止按太快导致输入bugprintf("原始数据加载成功!\n");system("pause");system("cls");
}void SaveData(house* ph)
{printf("文件保存中...\n");FILE* fw = fopen("warehouse.txt", "w");fwrite(ph->arr, sizeof(Data), ph->sz, fw);Sleep(1000);printf("文件保存成功!\n");
}int main()
{house* ph = (house*)malloc(sizeof(house));InitHouse(ph);Login(ph);int input = 0;do{menu();printf("请选择即将执行的操作:>\n");scanf_s("%d", &input);switch (input){case 0: SaveData(ph); break;case 1: Add(ph); break;case 2: Del(ph); break;case 3: Find(ph); break;case 4: Sort(ph); break;case 5: Show(ph); break;}} while (input);return 0;
}

设计报告下载：https://download.csdn.net/download/MarkTang3/87384290?spm=1001.2014.3001.5503