#include<stdio.h>
#include<string.h>
#include<stdlib.h> 

  int cmp(char str0[],char str1[])                         //比较两行字符串是否相等，相等则返回0，否则返回非0
{
  int i;
  for(i=0;str0[i]!=0 && str1[i]!=0 && str0[i]==str1[i];i++);
  return str0[i]-str1[i];
}
  int main(void)
{
  char sm[100];

  int c=1,i=0,n=0,flag=0,j=0;
  struct kc                                             //定义结构体数组，以每个名词的首字母取员名，如”书名“为”sm“
{
  char sm[100];
  char zz[100];
  char cbs[100];
  long cbrq;
  double jg;
  int wz;
  int sl;
};
   struct kc a[10]=
{                             //定义书籍资料
  {"怨女","张爱玲","北京十月文艺出版社",20090520,29.80,1,100},
  {"围城","钱钟书","人民文学出版社",19910214,19.00,2,10},
  {"红楼梦","曹雪芹","人民文学出版社",19961225,59.70,3,100},
  {"看见","柴静","广西师范大学出版社",20131001,39.80,4,100},
  {"一只特立独行的猪","王小波","北方文艺出版社",20060927,18.80,5,50},
  {"芳华","严歌苓","人民文学出版社",20171116,39.00,6,60},
  {"穆斯林的葬礼","霍达","北京十月文艺出版社",19880707,32.00,7,80},
  {"我的前半生","亦舒","新世界出版社",20070504,22.00,8,100},
  {"挪威的森林","村上春树","上海译文出版社",20010807,18.80,9,6},
  {"我们仨","杨绛","新知三联书店",20031101,18.80,10,20}
  };
  flag1:
  printf("***********书店库存管理系统***********:\n");
  printf("****        1.书本录入            ****:\n");
  printf("****        2.书本查询            ****:\n");  
  printf("**************************************:\n");
  
  int choose;
  printf("请选择:\t");
  scanf("%d",&choose);									//选择序号 
  
  
  if(choose==1)
  {
  	printf("录入成功！"); 
  }
  
  
  if(choose==2){
  printf("请输入书名:\n");
  fflush(stdin);
    gets(sm);
	j=0;                                                   //未找到书籍而跳到这里时使j清零，防止当再次没找到书籍时因j已大于10而无法进入最后的if语句，即无法得到未查找到的提示
  	for(i=0;i<10;i++)
	{
  	j++;                                                 //当j加到10时则说明没有找到书籍
		if(cmp(a[i].sm,sm)==0)
		{
 		printf("书名:");
  		puts(a[i].sm);
 		printf("作者:");
  		puts(a[i].zz);
 		printf("出版社:");
 		puts(a[i].cbs);
 		printf("出版日期:%d\n",a[i].cbrq);
 		printf("价格:%lf\n",a[i].jg);
 		printf("位置:%d\n",a[i].wz);
 		printf("库存:%d\n",a[i].sl);
 		printf("请输入所需数量:\n");
		fflush(stdin);
  		scanf("%d",&n);
			if(n<=a[i].sl)
 				 printf("总价为 %lf\n",(n*a[i].jg));
			else
  				printf("所需数量不在库存范围内\n");
  				printf("是否还想买其他书籍?(是 1: 否  0:双击回车键)\n");
		fflush(stdin);
 		 scanf("%d",&c);
		if(c==1)
		goto flag1;
	else
	{  
    	j=0;                                                    //当要退出时使j清零，防止当所找书籍位置为10时跳出for语句后因j也为10而误进入下面的if语句
   		printf("谢谢,再见!\n");
	}
}
}
    if(j=10)
{
    j=0;
    printf("未查找到该书籍，是否还想买其他书籍？（是Y或y否N或n)\n");
    fflush(stdin);                                       //清空输入缓存，防止干扰下次输入 
    scanf("%c",&c);
    if(c==1)
    goto flag1;
    else
{
    printf("谢谢，再见!\n");
}
}
    return 0;
}
}