#include "stdlib.h"
#include "cstring"
#define COUNT 30 //聲明商品的種類為30中,妳也可以修改
//函數聲明
void start(); //啟動界面
void input(); //商品數據信息輸入函數
void change(); //商品數據信息修改函數
void dele(); //給定指定商品名稱,刪除商品信息
void output(); //商品信息輸出
void search(); //商品信息查找
struct MarketGoods{ //存數商品信息的結構體
char goods_id[30]; //商品編號
char goods_name[30]; //商品名稱
double goods_price; //商品價格
double goods_discount;//商品折扣
int goods_amount;//商品總數目
int goods_remain;//商品剩余數目
}goods[COUNT];
int count=0; //全局變量,用於保存實際上有多少個商品
void main() //主函數
{
while(1)
start();
}
void start() //啟動菜單
{
int chi;
printf(" 超市商品管理系統\n");
printf(" ********************************************\n");
printf(" 1.商品信息的錄入:\n");
printf(" 2.商品信息的修改:\n");
printf(" 3.刪除某個商品信息:\n");
printf(" 4.查找商品信息:\n");
printf(" 5.退出系統:\n");
printf(" ********************************************\n");
printf(" 輸入妳的選擇: ");
scanf("%d",&chi); //根據妳的選擇執行相應的函數
if(chi==1) input();
else if(chi==2) change();
else if(chi==3) dele();
else if(chi==4) search();
else if(chi==5) { printf("妳已經退出超市商品管理系統!\n"); exit(0);}
else { printf(" You Enter The Choice Is Not valid ! \n"); }
}
void input() //數據錄入
{
char flag[20];
do{
printf("請輸入妳的商品信息:\n"); //錄入商品的信息
printf("商品編號:");
scanf("%s",goods[count].goods_id);
printf("商品名字:");
scanf("%s",goods[count].goods_name);
printf("商品價格:");
scanf("%lf",&goods[count].goods_price);
printf("商品折扣:");
scanf("%lf",&goods[count].goods_discount);
printf("商品總數目:");
scanf("%d",&goods[count].goods_amount);
printf("商品剩余數目:");
scanf("%d",&goods[count].goods_remain);
count++; //存數的商品數加壹
printf("是否繼續輸入數據 y是 n否 : "); //是否還想繼續輸入數據
scanf("%s",flag);
}while(strcmp(flag,"y")==0||strcmp(flag,"Y")==0);
output(); //調用顯示商品數據
}
void change() //數據修改
{
char ch[20],a[20];
int i;
printf("\nyou sure want change goodsInfor y/n): "); //根據商品的id來修改數據
scanf("%s",ch);
if(strcmp(ch,"y")==0||strcmp(ch,"Y")==0)
{ printf("\nenter you want change goods_id:");
scanf("%s",a);
for(i=0;i<count;i++)
{
if(strcmp(goods[i].goods_id,a)==0)
{ printf("\nyou sure want change goods name(y/n): ");
scanf("%s",ch);
if(strcmp(ch,"y")==0||strcmp(ch,"Y")==0) { printf("\nname:"); scanf("%s",goods[i].goods_name);}
printf("\nyou sure want change goods price(y/n): ");
scanf("%s",ch);
if(strcmp(ch,"y")==0||strcmp(ch,"Y")==0) { printf("\nprice"); scanf("%lf",&goods[i].goods_price);}
printf("\nyou sure want goods discount(y/n): ");
scanf("%s",ch);
if(strcmp(ch,"y")==0||strcmp(ch,"Y")==0) { printf("\ndiscount"); scanf("%lf",&goods[i].goods_discount);}
printf("\nyou sure want goods amount(y/n): ");
scanf("%s",ch);
if(strcmp(ch,"y")==0||strcmp(ch,"Y")==0) { printf("\namount"); scanf("%d",&goods[i].goods_amount);}
printf("\nyou sure want goods remain(y/n): ");
scanf("%s",ch);
if(strcmp(ch,"y")==0||strcmp(ch,"Y")==0) { printf("\nremain"); scanf("%d",&goods[i].goods_remain);}
}
} }
output();
}
void dele() //數據刪除
{
int i,j;
char c[20];
printf("\nenter you want delete name ：\n"); //根據商品的名稱來刪除數據
printf("name：");
scanf("%s",c);
for(i=0;i<count;i++)
if(strcmp(c,goods[i].goods_name)==0) break; //找到,即跳出循環
for(j=i;j<count-1;j++)
goods[j]=goods[j+1];
printf("\t\t\tyou had delete %s\n",c);
count--;
output();
}
void output() //數據輸出
{
int i;
for(i=0;i<count;i++)
{
printf("%s %s %lf %lf %d %d \n",goods[i].goods_id,goods[i].goods_name,goods[i].goods_price,goods[i].goods_discount,goods[i].goods_amount,goods[i].goods_remain);
}
}
void search() //數據查找
{
int i;
char a[20],ch[10];
printf("\nenter you want look name:"); //根據商品的名稱來查找數據
scanf("%s",a);
for(i=0;i<count;i++)
if(strcmp(goods[i].goods_name,a)==0)
printf("%s %s %lf %lf %d %d \n",goods[i].goods_id,goods[i].goods_name,goods[i].goods_price,goods[i].goods_discount,goods[i].goods_amount,goods[i].goods_remain);
}
代碼在vc++6.0測試通過 有問題可以hi我