수다닷컴

#include stdio.h
#include string.h
#include conio.h
#include windows.h
#include stdlib.h
struct Goods
{
char name[80];
int money;
int number;
};
int main()
{
system(cls);
struct Goods data[100]={0};
char str[80];
int count=0;
int x,i,total;
double sum=0;
while(1)
{
system(cls);
printf(1:물품목록조회\n);
printf(2:물품목록등록\n);
printf(3:물품목록삭제\n);
printf(4:물품검색\n);
printf(5:물품전체가격합계\n);
printf(6:영수증 출력\n);
printf(7:종료\n);
scanf(%d,&x);
switch(x)
{
case 1:
for(i=0;i count;i++)
printf(물품이름:%s 물품가격:%d\n,data[i].name,data[i].money);
break;
case 2:
printf(물품이름\n);
scanf(%s,data[count].name);
printf(물품가격\n);
scanf(%d,&data[count].money);
count++;
break;
case 3:
for(i=0;i count;i++)
printf(번호:%d 물품이름:%s 물품가격:%d\n,i,data[i].name,data[i].money);
printf(지울번호는\n);
scanf(%d,&x);
for(i=x;i count;i++)
{
strcpy(data[i].name,data[i+1].name);
data[i].money=data[i+1].money;
}
if(x count && x 0)count--;
break;
case 4:
printf(물품이름\n);
scanf(%s,str);
printf(\n);
total=0;
for(i=0;i count;i++)
{
if(strcmp(str,data[i].name)==0)
total+=data[i].money;
}
printf(물품명:%s 가격:%d\n,str,total);
break;
case 5:
total=0;
for(i=0;i count;i++)
total+=data[i].money;
printf(전체합계가격:%d\n,total);
break;
case 6:
printf(영수증 출력\n\n);
for(i = 0; i count; i++)
{
printf(%s의 주문 수량을 입력하시오.,data[i].name);
scanf(%d,&data[i].number);
sum+=data[i].money*data[i].number;
}
printf(==================================================\n);
printf( 계 산 서 \n);
printf(==================================================\n);
printf( 품목 가격 수량 합계 \n);
printf(==================================================\n);
for(i = 0; i count; i++)
{
printf(\t%10s\t%6d\t%3d\t%10d\n,data[i].name,data[i].money,data[i].number,data[i].money*data[i].number);
}
printf(==================================================\n);
printf( 총액 %d10\n, sum);
printf(==================================================\n);
break;
case 7:
exit(0);
&; break;
default:
break;
}getch();
}
return 0;
}
위 코드에서 빨간글씨 부분에 sum이 실행하면 계속 0이 되네요.. 뭐가 잘못된걸까요?

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