c语言实现的货物管理系统实例代码(增加删除 查找货物信息等功能)
本文导语: 代码如下:#include #include #include #include /*屏幕操作函数库*/ /*主管权限数据格式化*/#define HEADER1_zg "-----------------------------货物管理系统(主管)--------------------------------n"#define HEADER2_zg "| 编号 | 名称 | 进价 | 售价 | 产...
#include
#include
#include
#include /*屏幕操作函数库*/
/*主管权限数据格式化*/
#define HEADER1_zg "-----------------------------货物管理系统(主管)--------------------------------n"
#define HEADER2_zg "| 编号 | 名称 | 进价 | 售价 | 产地 | 生产日期 |保质期| 库存 | 销量 | 收入 |n"
#define HEADER3_zg "|------|--------|------|------|------|----------|------|------|------|--------|n"
#define FORMAT_zg "|%-6s|%-8s|%.2f |%.2f |%6s|%-4d%3d%3d| %4d | %4d | %4d |%.2f |n"
#define DATA_zg p->data.numbs,p->data.name,p->data.purchase,p->data.sales,p->data.place,p->data.Date.year,p->data.Date.mouth,p->data.Date.day,p->data.days,p->data.stock,p->data.salesnumb,p->data.income
#define END_zg "-------------------------------------------------------------------------------n"
/*普通权限数据格式化*/
#define HEADER1_pt "----------------货物管理系统(普通)--------------------n"
#define HEADER2_pt "| 编号 | 名称 | 售价 | 产地 | 生产日期 |保质期| 销量 |n"
#define HEADER3_pt "|------|--------|------|------|----------|------|------|n"
#define FORMAT_pt "|%-6s|%-8s| %.2f|%6s|%-4d%3d%3d| %4d | %4d |n"
#define DATA_pt p->data.numbs,p->data.name,p->data.sales,p->data.place,p->data.Date.year,p->data.Date.mouth,p->data.Date.day,p->data.days,p->data.salesnumb
#define END_pt "--------------------------------------------------------n"
int yhflag=0; /*是否优惠*/
int incomflag=0; /*是否计算收入*/
int dateflag=0; /*是否输入日期*/
int saveflag=0; /*是否需要保存*/
char zg[]="zg";
char pt[]="pt";
struct date
{
int year;
int mouth;
int day;
};
/*货物基本信息*/
struct goods
{
char numbs[6]; /*编号*/
char name[10]; /*名称*/
float purchase; /*进价*/
float sales; /*售价*/
char place[10]; /*产地*/
struct date Date; /*生产日期*/
int days; /*保质期*/
int datecha; /*保质期截止日期差*/
int stock; /*库存量*/
int salesnumb; /*销量*/
float income; /*收入*/
};
typedef struct node
{
struct goods data;
struct node *next;
}Node,*Link;
/*格式化输出主管表头*/
void printheader_zg()
{
printf(HEADER1_zg);
printf(HEADER2_zg);
printf(HEADER3_zg);
}
/*格式化输出普通表头*/
void printheader_pt()
{
printf(HEADER1_pt);
printf(HEADER2_pt);
printf(HEADER3_pt);
}
/*格式化输出主管表中数据*/
void printdata_zg(Node *pp)
{
Node *p;
p=pp;
printf(FORMAT_zg,DATA_zg);
}
/*格式化输出普通表中数据*/
void printdata_pt(Node *pp)
{
Node *p;
p=pp;
printf(FORMAT_pt,DATA_pt);
}
/*输出案件错误信息*/
void wrong()
{
printf("nnnn*******错误:输入错误,按任意键继续*******n");
getchar();
}
/*输出为查找到货物的信息*/
void Nofind()
{
printf("n*****无此货物信息!*****n");
getchar();
}
/*主管显示菜单*/
void Disp(Link L,char s[])
{
Node *p;
p=L->next;
if (!p) /*空,则*/
{
printf("n没有录入货物信息n");
getchar();
return ;
}
printf("nn");
if (strcmp(zg,s)==0)
{
printheader_zg();
while (p)
{
printdata_zg(p);
p=p->next;
printf(HEADER3_zg);
}
}
else
{
printheader_pt();
while (p)
{
printdata_pt(p);
p=p->next;
printf(HEADER3_pt);
}
}
getchar();
}
/*返回链表中符合要求的节点的指针,s[]保存用户查找内容,NaorNum[]保存按什么查找”name,num“*/
Node *Locate(Link L,char s[],char NaorNum[] )
{
Node *p;
if (strcmp(NaorNum,"num")==0)
{
p=L->next;
while (p)
{
if (strcmp(p->data.numbs,s)==0)
return p;
p=p->next;
}
}
else if (strcmp(NaorNum,"name")==0)
{
p=L->next;
while (p)
{
if (strcmp(p->data.name,s)==0)
return p;
p=p->next;
}
}
return 0; /*未找到,返回空指针*/
}
/*平润年判断*/
int Year_pd(int year)
{
int flag;
if ((year%4==0&&year%100!=0)||year%400==0)
{/*闰年*/
flag=0;
}
else
{/*平年*/
flag=1;
}
return flag;
}
/*月份对应的天数*/
int Day_pd(int mouth,int flag)
{
int day;
switch(mouth)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:day=31;break;
case 4:
case 6:
case 9:
case 11:day=30;break;
case 2:if (flag) day=28;
else day=29;break;
}
return day;
}
/*输入字符串,并进行验证,用户的输入通过*t输出*/
void S_input(char *t,int lens,char *notice)
{
char str[255];
do
{
printf(notice);
scanf("%s",str);
if(strlen(str)>lens)
printf("n超过了要求长度,重新输入n");
} while (strlen(str)>lens);
strcpy(t,str);
}
int Num_input(char *notice)
{
int a;
do
{
printf(notice);
scanf("%d",&a);
if(anext;
while (s) /*查询货物编号是否存在,若存在,要去输入新编号*/
{
if (strcmp(s->data.numbs,num)==0)
{
flag=1;
break;
}
s=s->next;
}
if (flag)
{
getchar();
printf("货物编号:%s已存在,是否要重新输入?(y/n)",num);
scanf("%c",&ch);
if(ch=='y'||ch=='Y')
continue;
else
return;
}
else
break;
}
p=(Node *)malloc(sizeof(Node));
if (!p)
{
printf("n没有申请到");
return; /*返回到主界面*/
}
strcpy(p->data.numbs,num);
S_input(p->data.name,8,"名称:");
p->data.purchase=Num_input("进价:");
p->data.sales=Num_input("售价:");
S_input(p->data.place,6,"产地:");
p->data.Date.year=Num_input("成产日期:年:");
p->data.Date.mouth=Mou_input(" 月:");
p->data.Date.day=Day_input(" 日:",p->data.Date.year,p->data.Date.mouth);
p->data.days=Num_input("保质期(天):");
p->data.stock=Num_input("库存:");
p->data.salesnumb=Num_input("销量:");
p->data.income=00;
p->next=r->next;
r->next=p; /*前插*/
}
return ;
}
int select(int a,int b) /*菜单选择*/
{
int n;
do
{
printf("nn");
printf("%15s"," ");
printf("请输入一个数(%d~%d): [ ]bb",a,b);
scanf("%d",&n);
} while (nb);
return n;
}
/*实时计算实际收益*/
void Sum_Income(Link L)
{
Node *p;
p=L->next;
while (p)
{
p->data.income=p->data.salesnumb*(p->data.sales-p->data.purchase);
p=p->next;
}
incomflag=1;
return ;
}
/*查询的通用方法*/
void Sea_by_ways(Link L,Node *p,char s[])
{
if (p)
{
if (strcmp(zg,s)==0)
{
printheader_zg();
printdata_zg(p);
printf(END_zg);
printf("按任意键返回...");
getchar();
}
else
{
printheader_pt();
printdata_pt(p);
printf(END_pt);
printf("按任意键返回...");
getchar();
}
}
else
{
Nofind();
getchar();
}
}
/*按编号或货物名称查询*/
void Sea_by_name(Link L,char s[])
{
Node *p;
char ss[20];
system("cls");
S_input(ss,10,"请输入要查找的货物名称:");
p=Locate(L,ss,"name");
Sea_by_ways(L,p,s);
}
void Sea_by_num(Link L,char s[])
{
Node *p;
char ss[20];
system("cls");
S_input(ss,10,"请输入要查找的货物编号:");
p=Locate(L,ss,"num");
Sea_by_ways(L,p,s);
}
/*日期相对于本年的天数*/
int Sum_day(int year,int mouth,int day)
{
int i,flag,days,sum=0;
flag=Year_pd(year);
for (i=1;inext;
year=Num_input("今天日期:年:");
mouth=Mou_input("月:");
day=Day_input("日:",year,mouth);
dateflag=1;
if (!p)
{
printf("***无货物信息,不用输入日期***n");
getchar();
return ;
}
else
{
while (p)
{
p->data.datecha=Sum_day(year,mouth,day)-Sum_day(p->data.Date.year,p->data.Date.mouth,p->data.Date.day);
p=p->next;
}
}
}
void Dz_by_data( Link L)
{
Node *p,*r;
Link l;
int year,mouth,day,count=0;
p=L->next;
l=(Node *)malloc(sizeof(Node));
l->next=NULL;
system("cls");
if (!dateflag)
{
Datecha(L);
}
printf("| 编号 | 名称 |过期差值|n");
while (p)
{
printf("|%-6s|%-8s| %4d |",p->data.numbs,p->data.name,p->data.datecha);
if (p->data.days>=p->data.datecha)
{
/*优惠的标示优惠*/
if (p->data.days-p->data.datechadata.sales=p->data.sales/2;
printf("已优惠n");
/* Ltol(l,p,p->next);*/
}
else
{
printf("n");
}
}
else
{
printf("该商品过期,请删除n");
}
p=p->next;
}
if(!count)
{
printf("/n***没有差10天过期的货物***/n");
getchar();
return;
}
else
{
printf("共有%d中商品打折",count);
yhflag=1;
saveflag=1;
Disp(L,zg);
}
}
/*删除*/
void Del_by_ways(Link L,Node *p)
{
Node *q;
char ch;
if (p)
{
q=L;
while(q->next!=p)
q=q->next;
printheader_zg();
printdata_zg(p);
printf(END_zg);
getchar();
printf("请确定是否要删除该货物信息(y/n):");
scanf("%c",&ch);
if (ch=='y'||ch=='Y')
{
q->next=p->next;
free(p);
printf("n成功删除该货物信息n");
saveflag=1;
getchar();
return;
}
else
{
printf("n没有删除该货物信息n");
getchar();
return;
}
}
else
{
Nofind();
getchar();
}
}
/*通过名称删除*/
void Del_by_name(Link L)
{
Node *p;
char s[20];
system("cls");
S_input(s,10,"请输入要查删除的货物名称:");
p=Locate(L,s,"name");
Del_by_ways(L,p);
}
/*通过编号删除*/
void Del_by_num(Link L)
{
Node *p;
char s[20];
system("cls");
S_input(s,10,"请输入要查删除的货物的编号:");
p=Locate(L,s,"num");
Del_by_ways(L,p);
}
/*补货信息*/
void Buhuo(Link L)
{
Node *p,*q;
int i=0;
p=L->next;
system("cls");
if (p)
{
q=L->next;
printf("| 编号 | 名称 |库存|销量|剩余| n");
while (q)
{
/*统计库存,销量,剩余*/
printf("|%-8s|%-8s|%-4d|%4d|%4d|n",q->data.numbs,q->data.name,q->data.stock,q->data.salesnumb,q->data.stock-q->data.salesnumb);
q=q->next;
}
while (p)
{
if ((p->data.stock-p->data.salesnumb)data.numbs,p->data.name);
i++;
}
p=p->next;
}
if (i)
{
printf("共%d种货物n",i);
getchar();
return;
}
else
{
printf("没有需要补充的货物种类n");
getchar();
return;
}
}
else
{
printf("n***没有货物信息***n");
printf("n按任意键返回...n");
getchar();
return ;
}
}
void Sort_by_ways(Link L,char s[],int n)
{
int flag=0,a;
Node *p,*q,*lq,*fq; /*fq记下节点前驱,lq记下节点的后驱,q每次冒泡遍历,p控制遍历,qq用来交换地址*/
p=L->next;
system("cls");
while (p)
{
fq=L;
q=fq->next;
while (lq=q->next)
{
if (strcmp(zg,s)==0)
{
switch (n)
{
case 1:a=strcmp(q->data.name,lq->data.name);break;
case 2:a=strcmp(q->data.numbs,lq->data.numbs);break;
case 3:a=(q->data.salesnumb>lq->data.salesnumb);break;
case 4:if(!incomflag) Sum_Income(L); a=(q->data.income>lq->data.income);break;
case 5:if (!dateflag) Datecha(L);a=(q->data.datecha>lq->data.datecha);break;
}
}
else
{
switch (n)
{
case 1:a=strcmp(q->data.name,lq->data.name);break;
case 2:a=strcmp(q->data.numbs,lq->data.numbs);break;
case 3:a=(q->data.sales>lq->data.sales);break;
case 4:a=(q->data.salesnumb>lq->data.salesnumb);break;
case 5:if (!dateflag) Datecha(L);a=(q->data.datecha>lq->data.datecha);break;
}
}
/*if ((n==1)?(strcmp(q->data.name,lq->data.name)):(strcmp(q->data.numbs,q->data.numbs)))*/
if(a>0)
{
flag=1;
q->next=lq->next;
lq->next=q;
fq->next=lq;
}
fq=fq->next;
q=fq->next;
}
if(flag==0) break;
p=p->next;
}
if (strcmp(zg,s)==0)
Disp(L,zg);
else
Disp(L,pt);
}
void Wb_Save(Link L)
{
FILE *out;
Node *p;
int count=0;
if ((out=fopen("d:\Goods.txt","w"))==NULL)
{
printf("打开文件失败!n");
getchar();
return;
}
p=L->next;
fprintf(out,HEADER1_zg);
fprintf(out,HEADER2_zg);
fprintf(out,HEADER3_zg);
while (p)
{
fprintf(out,FORMAT_zg,DATA_zg);
p=p->next;
fprintf(out,HEADER3_zg);
count++;
}
if (count>0)
{
getchar();
printf("nnn***文本文件保存完成,共%d条货物信息保存***n",count);
getchar();
saveflag=0;
}
else
{
system("cls");
printf("没有货物信息,没有货物信息保存n");
getchar();
}
fclose(out); /*关闭此文件*/
}
void Er_Save(Link L)
{
FILE *out;
Node *p;
int count=0;
if ((out=fopen("d:\Goods","wb"))==NULL)
{
printf("打开文件失败!n");
getchar();
return;
}
p=L->next;
while (p)
{
if (fwrite(p,sizeof(Node),1,out))
{
p=p->next;
count++;
}
else
{
break;
}
}
if (count>0)
{
getchar();
printf("nnn***二进制文件保存完成,共%d条货物信息保存***n",count);
getchar();
saveflag=0;
}
else
{
system("cls");
printf("没有货物信息,没有货物信息保存n");
getchar();
}
fclose(out); /*关闭此文件*/
}
void Menu_sort_zg()
{
system("cls");
printf("nnn");
printf("%30s%s"," "," 排序货物信息 nn");
printf("%30s%s"," ","********功能*******nn");
printf("%30s%s"," ","* 1.按名称 *nn");
printf("%30s%s"," ","* 2.按编号 *nn");
printf("%30s%s"," ","* 3.按销量*nn");
printf("%30s%s"," ","* 4.按利润*nn");
printf("%30s%s"," ","* 5.按保期 *nn");
printf("%30s%s"," ","* 6.返回 *nn");
printf("%30s%s"," ","* 7.退出 *nn");
printf("%30s%s"," ","********************n");
}
void Menu_sort_pt()
{
system("cls");
printf("nnn");
printf("%30s%s"," "," 排序货物信息 nn");
printf("%30s%s"," ","********功能*******nn");
printf("%30s%s"," ","* 1.按名称 *nn");
printf("%30s%s"," ","* 2.按编号 *nn");
printf("%30s%s"," ","* 3.按售价 *nn");
printf("%30s%s"," ","* 4.按销量 *nn");
printf("%30s%s"," ","* 5.按保期 *nn");
printf("%30s%s"," ","* 6.返回 *nn");
printf("%30s%s"," ","* 7.退出 *nn");
printf("%30s%s"," ","********************n");
}
void Menu_del()
{
system("cls");
printf("nnn");
printf("%30s%s"," "," 删除货物信息 nn");
printf("%30s%s"," ","********功能*******nn");
printf("%30s%s"," ","* 1.按名称 *nn");
printf("%30s%s"," ","* 2.按编号 *nn");
printf("%30s%s"," ","* 3.返回 *nn");
printf("%30s%s"," ","* 4.退出 *nn");
printf("%30s%s"," ","********************n");
}
void Menu_Sea()
{
system("cls");
printf("nnn");
printf("%30s%s"," "," 查询货物信息 nn");
printf("%30s%s"," ","********功能*******nn");
printf("%30s%s"," ","* 1.按名称 *nn");
printf("%30s%s"," ","* 2.按编号 *nn");
printf("%30s%s"," ","* 3.返回 *nn");
printf("%30s%s"," ","* 4.退出 *nn");
printf("%30s%s"," ","********************n");
}
void Menu_Qx() /*权限菜单*/
{
system("cls");
printf("nnn");
printf("%25s%s"," "," 欢迎进入 n");
printf("%25s%s"," "," 货物管理体统 nnn");
printf("%25s%s"," ","**********功能*********nn");
printf("%25s%s"," ","* 1.主管 *nn");
printf("%25s%s"," ","* 2.普通用户 *nn");
printf("%25s%s"," ","* 3.退出 *nn");
printf("%25s%s"," ","***********************n");
}
void Menu_zg() /*主管菜单*/
{
system("cls");
printf("nnn");
printf("%15s%s"," "," 货物管理体统 nnn");
printf("%15s%s"," ","*****************主管功能******************nn");
printf("%15s%s"," ","* 1.录入货物信息 *n");
printf("%15s%s"," ","* 2.删除货物信息 *n");
printf("%15s%s"," ","* 3.查找货物信息 *n");
printf("%15s%s"," ","* 4.显示货物信息 *n");
printf("%15s%s"," ","* 5.差10天过物信息(促销) *n");
printf("%15s%s"," ","* 6.统计货物数量(补货) *n");
printf("%15s%s"," ","* 7.实时收益 *n");
printf("%15s%s"," ","* 9.排序日期差 *n");
printf("%15s%s"," ","* 10.保存文件 *n");
printf("%15s%s"," ","* 11.返回 *n");
printf("%15s%s"," ","* 12.退出 *n");
printf("%15s%s"," ","*******************************************n");
}
void Menu_pt() /*普通菜单*/
{
printf("%15s%s"," "," 货物管理体统 nnn");
printf("%15s%s"," ","*****************普通用户功能***************nn");
printf("%15s%s"," ","* 1.查找货物信息 *n");
printf("%15s%s"," ","* 2.显示货物信息 *n");
printf("%15s%s"," ","* 3.排序货物销量 *n");
printf("%15s%s"," ","* 4.返回 *n");
printf("%15s%s"," ","* 5.退出 *n");
printf("%15s%s"," ","*************************************************n");
}
void Isaveflag(Link L)
{
char ch;
if (saveflag)
{
printf("您已经修改数据了,是否要保存退出(y/n):");
getchar();
scanf("%c",&ch);
if (ch=='y'||ch=='Y')
{
Wb_Save(L);
Er_Save(L);
exit(0);
}
else
exit(0);
}
else
exit(0);
}
int IsPassword() /*密码是否通过*/
{
char password[7];
char mypassword[]="123456";
static int n=3;
int i;
system("cls");
for (;n>0;n--)
{
switch(n)
{
case 1:
case 2: printf("密码错误,您还有%d次机会,请再输入:",n);break;
case 3: printf("请输入6位进入主管功能的密码:");getchar();break;
}
for ( i=0;inext)
{
system("cls");
printf("n没有货物信息,无法使用排序功能n");
getchar();
return;
}
else
{
if (strcmp(zg,s)==0)
{
system("cls");
for (;;)
{
Menu_sort_zg();
switch(select(1,7))
{
case 1:Sort_by_ways(L,zg,1);break; /*名称*/
case 2:Sort_by_ways(L,zg,2);break; /*编号*/
case 3:Sort_by_ways(L,zg,3);break; /*销量*/
case 4:Sort_by_ways(L,zg,4);break; /*利润*/
case 5:Sort_by_ways(L,zg,5);break; /*保期*/
case 6:return;break;
case 7:Isaveflag(L);break;
}
getchar();
}
}
else
{
system("cls");
for (;;)
{
Menu_sort_pt();
switch(select(1,7))
{
case 1:Sort_by_ways(L,pt,1);break; /*名称*/
case 2:Sort_by_ways(L,pt,2);break; /*编号*/
case 3:Sort_by_ways(L,pt,3);break; /*售价*/
case 4:Sort_by_ways(L,pt,4);break; /*销量*/
case 5:Sort_by_ways(L,pt,5);break; /*销量*/
case 6:return;break;
case 7:Isaveflag(L);break;
}
getchar();
}
}
}
}
void Sea_goods(Link L,char s[])
{
if (!L->next)
{
system("cls");
printf("n***没有货物记录,不能进入查询功能***n");
return ;
}
else
{
system("cls");
for (;;)
{
Menu_Sea();
switch(select(1,4))
{
case 1:Sea_by_name(L,s);break;
case 2:Sea_by_num(L,s);break;
case 3:return;break;
case 4:Isaveflag(L);break;
}
getchar();
}
}
}
void Del_goods(Link L)
{
if (!L->next)
{
system("cls");
printf("n***没有货物记录,不能使用删除功能***n");
return ;
}
else
{
system("cls");
for (;;)
{
Menu_del();
switch (select(1,4))
{
case 1:Del_by_name(L);break;
case 2:Del_by_num(L);break;
case 3:return;break;
case 4:Isaveflag(L);break;
}
getchar();
}
}
}
void main_zg(Link L) /*主管功能*/
{
system("cls");
for (;;)
{
Menu_zg();
switch (select(1,12))
{
case 1:Add_goods(L);saveflag=1;break; /*增加货物信息*/
case 2:Del_goods(L);break; /*删除学生信息*/
case 3:Sea_goods(L,zg);break; /*按编号名字查询*/
case 4:system("cls");Disp(L,zg);break;
case 5:Dz_by_data(L);break;
case 6:Buhuo(L);break;
case 7:Disp(L,zg);Sum_Income(L);Disp(L,zg);break;
case 9:Sort_goods(L,zg);break;
case 10:Wb_Save(L);Er_Save(L);break;
case 11:return;break;
case 12:Isaveflag(L);break;
}
getchar();
}
}
void main_pt(Link L) /*普通功能*/
{
system("cls");
for (;;)
{
Menu_pt();
switch (select(1,5))
{
case 1:Sea_goods(L,pt);break; /*按编号名字查询*/
case 2:system("cls");Disp(L,pt);break;
case 3:Sort_goods(L,pt);break;
case 4:return;break;
case 5:Isaveflag(L);break;
}
getchar();
system("cls");
}
}
int main()
{
Link L;
FILE *in;
Node *p,*r;
int count=0;
L=(Node *)malloc(sizeof(Node));
L->next=NULL;
r=L;
if ((in=fopen("d:\Goods","ab+"))==NULL) /*以追加方式打开二进制文件*/
{
printf("n***打开文件失败***n");
exit(0);
}
while (!feof(in))
{
p=(Node *)malloc(sizeof(Node));
if (fread(p,sizeof(Node),1,in))
{
p->next=r->next;
r->next=p;
count++;
}
}
fclose(in);
for (;;)
{
Menu_Qx();
switch (select(1,3))
{
case 1:if(IsPassword())
{
main_zg(L);
}
break;
case 2:main_pt(L);break;
case 3:Isaveflag(L);break;
}
getchar();
}
return 0;
}