C语言商品管理系统4

本系统主要功能：

1)  新购物品入库

2)  物品信息删除

3)  物品信息修改

4） 物品信息查询

5）物品信息浏览

数据结构

struct ima

{

    int id;

    char name[20];

    char produce[30];

    int number;

    float price;

};

模块划分

原函数清单

1、创建函数

   void chushihua()

2、增加物品函数

 Tianjia(); 

3、删除物品信息函数

Shanchu();

4、修改物品信息函数

  Xiugai(); 

5、查询物品信息函数

Chazhao();

6、浏览物品信息函数

Liulan(); 

7、系统颜色设置函数

   yanseshezhi();

8、应用程序退出函数

   Jieshu();

开发工具和编程语言：

编程语言：C语言

开发工具：microsoft visual C++  6.0

详细设计

1、结构体变量的定义：

struct ima

{

    int id;

    char name[20];

    char produce[30];

    int number;

    float price;

};

3、文件的初始化：

void chushihua()

{

    FILE *fp;

    struct ima i={1,"123","1234",1200,2.5};

    fp=fopen("ima.dat

    if(fp==NULL)

    {

    printf("\\\系统错误，请重试........");

        exit(0);

    }

    fwrite(&i,sizeof(struct ima),1,fp);

    fclose(fp);

}

4、欢迎菜单（主函数）：

void main()

{

 char a[20],b[]="123";

 int i=0;

 printf("请输入密码，按回车结束\\n");

 while((a[i]=getch())!=13)

 {

  printf("*");

  i++;

 }

 a[i]='\\0';

if(strcmp(a,b)==0)

 printf("\\n密码正确\\n");

else 

{

printf("\\n密码错误\\n");

return;

}    

    printf("\\n\\n");

    printf("\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                        欢迎使用                              x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                     超市商品管理系统                         x\\n");

    printf("\x                      按任意键继续                            x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               \\3\\n");

    printf("\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");

    getch();

    system("cls");

    menu();

    initialization();

    menu();

}

密码加密

{

 char a[20],b[]="123";

 int i=0;

 printf("请输入密码，按回车结束\\n");

 while((a[i]=getch())!=13)

 {

  printf("*");

  i++;

 }

 a[i]='\\0';

if(strcmp(a,b)==0)

 printf("\\n密码正确\\n");

else 

{

printf("\\n密码错误\\n");

return;

}    

调试分析

在密码加密部分花费了较多心思,最后终于决定用if语句来进行最后判断比较合适

调试结果

1密码验证部分:

2欢迎界面

3主菜单页面

4物品信息浏览及新物品入库

心得总结

虽然只上了半个学期的C语言课程,但是本来对电脑就有几分兴趣的我对C语言也产生了极大的兴趣,但是真正要写起程序来就遇到了很大的困难,首先不知道该如何下手,不知道自己做的这个程序要实现什么样的功能.最后在到网上查询了许多相关资料后开始入手,这个程序说实话属于我自己的东西比较少,但是都是我一字一句读懂别人程序后写下来的,最后,对于网上的源程序是没有开头的密码验证的,这个是属于我自己编写的东西,也是花费了不少心思.

源程序

#include "stdafx.h"

#include

#include

#include

#include

struct ima

{

    int id;

    char name[20];

    char produce[30];

    int number;

    float price;

};

void Append();

void Selldelete();

void Amend();

void Findin();

void Browse();

void colorsetting();

void Endprogram();

void initialization()

{

    FILE *fp;

    struct ima i={1,"123","1234",1200,2.5};

    fp=fopen("ima.dat恶","w");

    if(fp==NULL)

    {

        printf("\\\系统错误，请重试........");

        exit(0);

    }

    fwrite(&i,sizeof(struct ima),1,fp);

    fclose(fp);

}

void menu()

{

    int choice;

    printf("\\n------------------------【超市库存管理系统】-----------------------\\n");

    printf("\\n\1=====================【          新购物品入库        】\\n");

    printf("\\n\2=====================【          物品信息删除        】\\n");

    printf("\\n\3=====================【          物品信息修改        】\\n");

    printf("\\n\4=====================【          物品信息查询        】\\n");

    printf("\\n\5=====================【          物品信息浏览        】\\n");

    printf("\\n\6=====================【          应用程序退出        】\\n");

    printf("\\n\请输入您要选择的菜单......");

    scanf("%d",&choice);

    switch(choice)

    {

    case 1:

        Append();

        break;

    case 2:

        Selldelete();

        break;

    case 3:

        Amend();

        break;

    case 4:

        Findin();

        break;

    case 5:

        Browse();

        break;

    case 6:

        Endprogram();

        break;

    default:

        printf("\\n\\\\\输入无效，请您重新输入......");

        getch();

        system("cls");

        menu();

    }

}

int validateID(int id)

{   

    FILE *fp;

    struct ima i;

    fp=fopen("ima.date","r");

    if(fp==NULL)

    {

        printf("\\\系统错误，请您重试........");

        exit(0);

    }

    fread(&i,sizeof(struct ima),1,fp);

    while(!feof(fp))

    {

        if(i.id==id)

        {

            fclose(fp);

            return 1;

            break;

        }

        fread(&i,sizeof(struct ima),1,fp);

    }

    fclose(fp);

    return 0;

}

void Append()

{   struct ima i;

char choice;

    FILE *fp;

    fp=fopen("ima.date","ab");

    if(fp==NULL)

    {

        printf("\\\系统错误，请您重试........");

        exit(0);

    }

  labID:

    printf("\\n\请您输入要入库物品的信息...\\n");

    printf("\\\\   物品的编号:");

    scanf("%d",&i.id);

    if(validateID(i.id)==1)

    {

        printf("\\\\此编号已被使用，请您重新输入......");

        goto labID;

    }

    printf("\\\\   物品的名称:");

    scanf("%s",i.name);

    printf("\\\\   物品的生产地:");

    scanf("%s",i.produce);

    printf("\\\\   物品的数量:");

    scanf("%d",&i.number);

    printf("\\\\   物品的单价:");

    scanf("%f",&i.price);

    fwrite(&i,sizeof(struct ima),1,fp);

    fclose(fp);

    printf("\\\\\\  物品信息已入库成功!!!\\n");

    printf("\\n您想继续吗?(y/n)");

    scanf(" %c",&choice);

    if(choice=='Y'||choice=='y')

    {

        Append();

    }

    else

    {

        system("cls");

        menu();

    }

}

void Selldelete()

{   struct ima i[1000];

    struct ima temp;

    int delID;

    char choice;

    int index=0;

    int j=0;

    FILE *fp;

    fp=fopen("ima.date","r");

    if(fp==NULL)

    {

        printf("\\\系统错误，请您重试........");

        exit(0);

    }

    fread(&temp,sizeof(struct ima),1,fp);

    while(!feof(fp))

    {

        i[index]=temp;

        index++;

        fread(&temp,sizeof(struct ima),1,fp);

    }

    fclose(fp);

    printf("\\n\请输入要删除的物品的编号:");

    scanf("%d",&delID);

    fopen("f:\\\\ima.date","w");

    if(fp==NULL)

    {

        printf("\\\系统错误，请您重试........");

        exit(0);

    }

    for( j=0;j    {

        if(i[j].id!=delID)

        {

            fwrite(&i[j],sizeof(struct ima),1,fp);

        }

    }

    fclose(fp);

    printf("\\\\\物品信息已清除!!!\\n");

    printf("\\n您想继续吗?(y/n)");

    scanf(" %c",&choice);

    if(choice=='Y'||choice=='y')

    {

        Selldelete();

    }

    else

    {

        system("cls");

        menu();

    }

}

void Amend()

{   int index=0;

    int ID,j;

    char choice;

    struct ima i[1000];

    struct    ima temp;

    FILE *fp;

    fp=fopen("ima.date","r");

    if(fp==NULL)

    {

        printf("\\\系统错误，请您重试........");

        exit(0);

    }

    fread(&temp,sizeof(struct ima),1,fp);

    while(!feof(fp))

    {

        i[index]=temp;

        index++;

        fread(&temp,sizeof(struct ima),1,fp);

    }

    fclose(fp);

    fp=fopen("ima.date","w");

    if(fp==NULL)

    {

        printf("\\\\\系统错误，请您重试........");

        exit(0);

    }

    printf("\\n\请输入要修改的信息的物品的编号:");

    scanf("%d",&ID);

    for(j=0;j<=index-1;j++)

    {

        if(i[j].id!=ID)

        {

            fwrite(&i[j],sizeof(struct ima),1,fp);

        }

        else

        {

            printf("\\物品名称修改为:");

            scanf("%s",i[j].name);

            printf("\\物品生产地修改为:");

            scanf("%s",i[j].produce);

            printf("\\物品数量修改为:");

            scanf("%d",&i[j].number);

            printf("\\物品单价修改为:");

            scanf("%f",&i[j].price);

            fwrite(&i[j],sizeof(struct ima),1,fp);

        }

    }

    fclose(fp);

    printf("\\\\物品信息已修改......");

    printf("\\n您想继续吗?(y/n)");

    scanf(" %c",&choice);

    if(choice=='Y'||choice=='y')

    {

        Amend();

    }

    else

    {

        system("cls");

        menu();

    }

}

void Findin()

{ 

    FILE *fp;

    int findID;char choice;struct ima i;

    fp=fopen("ima.date","r");

    if(fp==NULL)

    {        

        printf("\\\系统错误，请你重试........");

        exit(0);

    }

    finID:

    printf("\\n\请输入要查询的物品的编号..");

    scanf("%d",&findID);

    fread(&i,sizeof(struct ima),1,fp);

    while(!feof(fp))

    {

        if(i.id==findID)

        {

            printf("\\n\\n\***************物品信息******************");

            printf("\\n\物品编号...%30d\\n",i.id);

            printf("\\n\-----------------------------------------");

            printf("\\n\物品名称...%30s\\n",i.name);

            printf("\\n\-----------------------------------------");

            printf("\\n\生产厂家...%30s\\n",i.produce);

            printf("\\n\-----------------------------------------");

            printf("\\n\进口数量...%30d\\n",i.number);

            printf("\\n\-----------------------------------------");

            printf("\\n\批发价格...%30.3f\\n",i.price);

            printf("\\n\-----------------------------------------");

            printf("\\n您想继续吗?(y/n)");

            scanf(" %c",&choice);

            if(choice=='Y'||choice=='y')

            {

                Findin();

            }

            else

            {

                system("cls");

                menu();

            }

        }

        fread(&i,sizeof(struct ima),1,fp);

    }

    fclose(fp);

    printf("\\\\\输入的编号不存在，请您重新输入......");

    goto finID;

}

void Browse()

{   struct ima i;

    int index=0;

    char choice;

    FILE *fp;

    fp=fopen("ima.date","r");

    if(fp==NULL)

    {        

        printf("\\\系统错误，请你重试........");

        exit(0);

    }

    fread(&i,sizeof(struct ima),1,fp);

    while(!feof(fp))

    {

        index++;

        printf("\\n\\n\****************物品信息%d*****************",index);

        printf("\\n\物品编号...%30d\\n",i.id);

        printf("\\n\-----------------------------------------");

        printf("\\n\物品名称...%30s\\n",i.name);

        printf("\\n\-----------------------------------------");

        printf("\\n\生产厂家...%30s\\n",i.produce);

        printf("\\n\-----------------------------------------");

        printf("\\n\进口数量...%30d\\n",i.number);

        printf("\\n\-----------------------------------------");

        printf("\\n\批发价格...%30.3f\\n",i.price);

        printf("\\n\-----------------------------------------");

        getch();

        fread(&i,sizeof(struct ima),1,fp);

    }

    fclose(fp);

    printf("\\n您想继续吗?(y/n)");

    scanf(" %c",&choice);

    if(choice=='Y'||choice=='y')

    {

        Browse();

    }

    else

    {

        system("cls");

        menu();

    }

}

void Endprogram()

{char choice;

    system("cls");

    printf("\\n\\n\\n\\n\\n\\n\\n\\\您确定要退出系统吗?\\n\\n\\n\\\如果您想退出请按'y',其它键将返回主菜单.....");

    scanf(" %c",&choice);

    if(choice=='Y'||choice=='y')

    {

        system("cls");

        printf("\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\\\谢谢您的使用!!!");

        printf("\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n");

    }

    else

    {

        system("cls");

        menu();

    }

}

void main()

{

 char a[20],b[]="123";

 int i=0;

 printf("请输入密码，按回车结束\\n");

 while((a[i]=getch())!=13)

 {

  printf("*");

  i++;

 }

 a[i]='\\0';

if(strcmp(a,b)==0)

 printf("\\n密码正确\\n");

else 

{

printf("\\n密码错误\\n");

return;

}    

    printf("\\n\\n");

    printf("\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                        欢迎使用                              x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                     超市商品管理系统                         x\\n");

    printf("\x                      按任意键继续                            x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               x\\n");

    printf("\x                                                               \\3\\n");

    printf("\xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");

    getch();

    system("cls");

    menu();

    initialization();

    menu();

}