first commit

李清宇.c

@@ -0,0 +1,107 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<conio.h>
+struct infor {
+	char num[50];
+	char name[50];
+	float price;
+};
+ struct infor g;
+ FILE *part1;
+ void menu_s();
+ void input();
+ void check();
+ int main()
+ {
+ 	system("cls");//清屏
+	int n;
+	menu_s();
+	scanf("%d",&n);
+	while(n)
+	{
+	system("cls");
+	
+		switch(n)
+		{
+			case 1:
+			input() ;break;
+			//case 2:
+			//output();break;
+			//case 3:
+			//updata();break;
+			case 4:
+			check();break;
+			//case 5:
+			//sales();break;
+			case 6:
+			 return 0;
+		} 
+		getch();
+		menu_s();
+		scanf("%d",&n);
+	 }
+}
+	 void menu_s ()
+{
+	printf("***********主菜单************\n");
+	printf("*********1:商品入库*********\n");
+	printf("*********2:商品出库*********\n");
+	printf("*********3:更新库存*********\n");
+	printf("*********4:查询库存*********\n");
+	printf("*********5:销售统计*********\n");
+	printf("*********6:退出系统*********\n");
+	printf("*********请输入选项*********\n");
+	printf("----------------------------\n"); 
+}
+
+	 void input()
+{
+	char next='y';
+	part1=fopen("storg","rb+");
+	if(part1==NULL)
+	{
+		part1=fopen("storg","wb+");
+		if(part1==NULL)
+		{
+		printf("打开文件失败\n");
+		exit(0);
+	    }
+	}
+	//fseek(part1,0,SEEK_END);
+	while(next=='y')
+	{
+		printf("\n请输入商品编号\n");
+		gets(g.num );
+		printf("\n请输入商品名称\n");
+		gets(g.name );
+		printf("\n请输入商品价格\n");
+	    scanf("%lf",&g.price );
+		fprintf(part1,"%10s%10s%10s",g.num ,g.name ,g.price );/*向文件写入数据*/
+		printf("\n继续输入（y/n）\n");
+		fflush(stdin);//清空缓存区。
+		next=getch();
+	}
+	fclose(part1);	 
+}
+   void check()
+{
+	part1=fopen("storg","rb+");
+	if(part1==NULL)
+	{
+		printf("打开文件失败\n");
+		exit(1);
+    }
+    rewind(part1);
+    printf("\n\n商品列表\n****************\n");
+    printf("id       name      price\n");
+    while(!feof(part1))
+    {
+    	fscanf(part1, "%10s%10s%10s",g.num ,g.name ,&g.price);
+    	//从文件读出数据到结构体
+		printf("%-10s %-10s %-10f\n",g.num ,g.name ,g.price); 
+	}
+	fclose(part1);
+}
+
+ 
+