商品销售系统用c语言怎么写，求源程序

答案:2 悬赏:50 手机版

解决时间 2021-01-21 16:51

提问者网友：我的未来我做主
2021-01-21 12:12

商品销售系统用c语言怎么写，求源程序

最佳答案

五星知识达人网友：山河有幸埋战骨
2021-01-21 13:09

#include
#include
#include
#include
#define Z 5
#define R 4
typedef struct
{
int shangpin[Z];
}data;
void menu()
{ printf(" *******************************************************\n");
printf(" 0.结束操作\n");
printf(" 1.计算上个月每个人每种产品的销售额\n");
printf(" 2.按销售额对销售员进行排序，输出排序结果\n");
printf(" 3.统计每种产品的总销售额,输出排序结果\n");
printf(" 4.输出统计报表\n");
printf(" ******************************************************\n");
}
void data_read(data *x)
{
FILE *fp;
char fname[10];
int i;
printf("您想查询哪个月?\n");
printf("请输入月份:");
scanf("%s",fname);
strcat(fname,".txt");
if((fp=fopen(fname,"rb"))==NULL)
{
printf("can not open the file\n");
exit(0);
}
for(i=0;i if(fread(x+i,sizeof(data),1,fp)!=1)
printf("读入信息出错！\n");
}
void data_count(data *x)
{
FILE *fp;
char fname[10];
int j,t;
int i,k,s;
system("cls");
printf("您想计算哪个月?\n");
printf("请输入月份:");
scanf("%s",fname);
strcat(fname,".txt");
if((fp=fopen(fname,"wb"))==NULL)
{
printf("can not open the file\n");
exit(0);
}
for(j=0;j for(t=0;t (x+j)->shangpin[t]=0;
printf("please put the information about the 职工编号,产品编号,销售数量\n");
for(j=0;;j++)
{
scanf("%d%d%d",&i,&k,&s);
if(i==0)
break;
if(i>R||i<0||k>Z||k<0)
{
printf("the information error!\n");
continue;
}
else
(x+i-1)->shangpin[k-1]=(x+i-1)->shangpin[k-1]+s;
}
for(j=0;j if(fwrite((x+j),sizeof(data),1,fp)!=1)
printf("write error!\n");
fclose(fp);
}
void range_sxy(data *x)
{
FILE *fp;
char fname[10];
int i,k,j,t,bianhao[R]=,z;
system("cls");
printf("你要哪个月的?\n");
printf("请输入月份:");
scanf("%s",fname);
strcat(fname,".txt");
if((fp=fopen(fname,"rb"))==NULL)
{
printf("can not open the file\n");
exit(0);
}
for(i=0;i if(fread(x+i,sizeof(data),1,fp)!=1)
printf("读入信息出错！");
for(i=0;i bianhao[i]=i++;
printf("请输入按何种产品排序\n");
scanf("%d",&k);
k=k-1;
for(i=0;i {
t=i;
for(j=i+1;j if((x+bianhao[t])->shangpin[k]<(x+bianhao[j])->shangpin[k])
t=j;
if(t!=i)
{
z=bianhao[i];
bianhao[i]=bianhao[t];
bianhao[t]=z;
}
}
printf("按%d产品对销售员排序为:\n",k+1);
for(i=0;i printf("%5d",bianhao[i]+1);
getch();
fclose(fp);
}
void range_shangpin(data *x)
{
FILE *fp;
char fname[10];
int i,j,sum[Z]=,bianhao[Z]=,z,t,k;
system("cls");
printf("您想计算哪个月的?\n");
printf("请输入月份:");
scanf("%s",fname);
strcat(fname,".txt");
if((fp=fopen(fname,"rb"))==NULL)
{
printf("can not open the file\n");
exit(0);
}
for(i=0;i if(fread(x+i,sizeof(data),1,fp)!=1)
printf("读入信息出错！");
for(i=0;i for(j=0;j sum[i]=sum[i]+(x+j)->shangpin[i];
for(i=0;i bianhao[i]=i++;
for(i=0;i printf("%3d",bianhao[i]);
for(i=0;i {
t=i;
for(j=i+1;j if(sum[t] t=j;
if(t!=i)
{
k=sum[i];
sum[i]=sum[t];
sum[t]=k;
z=bianhao[i];
bianhao[i]=bianhao[t];
bianhao[t]=z;
}
}
printf("输出产品排序\n");
printf("产品编号数量\n");
for(i=0;i printf("%-10d%-10d\n",bianhao[i]+1,sum[i]);
getch();
fclose(fp);
}
void data_out(data *x)
{
FILE *fp;
char fname[10];
int i,j,sum[Z+1]=;
system("cls");
printf("您想计算哪个月?\n");
printf("请输入月份:");
scanf("%s",fname);
strcat(fname,".txt");
if((fp=fopen(fname,"rb"))==NULL)
{
printf("can not open the file\n");
exit(0);
}
for(i=0;i if(fread(x+i,sizeof(data),1,fp)!=1)
printf("读入信息出错！");
for(i=0;i for(j=0;j sum[i]=sum[i]+(x+j)->shangpin[i];
for(i=0;i sum[Z]=sum[Z]+sum[i];
printf("输出统计报表如下:\n");
printf("产品代号销售之和销售员代号\n");
for(i=0;i for(j=0;j printf("%-10d%-10d%-10d\n",j+1,(x+i)->shangpin[j],i+1);
printf("***********************************\n");
for(i=0;i {
if(i==0)
printf("%d产品之和 %-10d 总和 %-10d\n",i+1,sum[i],sum[Z]);
else
printf("%d产品之和 %-10d\n",i+1,sum[i]);
}
getch();
}
void main()
{
int i,choice;
data sxy[R];
for(i=0;;i++)
{
system("cls");
menu();
printf("你想做什么?\n");
printf("请选择:");
scanf("%d",&choice);
if(choice==0)
break;
else
switch(choice)
{
case 1 : data_count(sxy);break;
case 2 : range_sxy(sxy);break;
case 3 : range_shangpin(sxy);break;
case 4 : data_out(sxy);break;
}
}
}

全部回答

1楼网友：杯酒困英雄
2021-01-21 14:41

很有创意的问题！

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