diff --git a/room3.c b/room3.c
new file mode 100644
index 0000000..aeaf280
--- /dev/null
+++ b/room3.c
@@ -0,0 +1,335 @@
+#include<1room.h>
+//保存函数
+
+int saving()
+
+{
+
+FILE *fp;
+int i;
+char str;
+
+printf("是否要保存修改?(Y OR N)\n");
+scanf("%s",&str);
+while(1)
+{
+if(str=='y'||str=='Y')
+break;
+else if(str=='n'||str=='N')
+return 0;
+else
+printf("请重新输入:");
+scanf("%s",&str);
+}
+
+fp=fopen("a","rb+");
+
+fwrite(&inf,sizeof(inf),1,fp);
+
+fclose(fp);
+
+}
+
+//读取函数
+int loading()
+{
+FILE *fp;
+int i;
+fp=fopen("a","rb");
+
+fread(&inf,sizeof(inf),1,fp);
+fclose(fp);
+}
+//修改函数
+int  change1()
+{
+system("cls");
+int m;
+printf("请选择所要执行的操作\n");
+printf("1.全局查询信息\n");
+printf("2.单个查询信息\n");
+printf("3.返回\n");
+scanf("%d",&m);
+while(1)
+{
+switch(m)
+{
+case 1:query_r();return 0;
+case 2:query_o();return 0;
+case 3:return 0;
+}
+printf("请重新输入:");
+scanf("%d",&m);
+}return 0;
+} 
+//查询信息函数
+void query_r()
+{
+  system("cls");
+ FILE *fp;int i;
+ loading();
+if(qty==0)
+printf("请新建房间信息\n");
+
+else
+{
+printf("房间号 单人or双人 房间类型 是否已入住 入住时间\n");
+for(i=0;i<qty;i++)
+printf("%s %s %s %s %d %d %d\n",inf[i].num,inf[i].human,inf[i].kind,inf[i].inout,inf[i].time[0],inf[i].time[1],inf[i].time[2]);
+printf("共有%d条记录\n",qty);
+}
+printf("按任意键返回");
+}
+
+
+void query_o()//单个查询
+{
+system("cls");
+char str[5];
+int i;
+printf("请输入需要查询的房间:\n");
+scanf("%s",&str);
+system("cls");
+loading();
+for(i=0;i<qty;i++)
+{
+if(strcmp(inf[i].num,str)==0)
+{printf("房间号 单人or双人 房间类型 是否已入住 入住时间\n");
+printf("%s %s %s %s %d %d %d\n",inf[i].num,inf[i].human,inf[i].kind,inf[i].inout,inf[i].time[0],inf[i].time[1],inf[i].time[2]);
+} 
+}printf("按任意键返回");
+
+}
+
+
+//登记入住
+void register_()
+{
+	system("cls");
+char str[5];
+char str1[]="已入住";
+FILE *fp;
+int i;
+printf("请选择入住的房间\n");
+scanf("%s",&str);
+loading();
+for(i=0;i<qty;i++)
+{
+	if(strcmp(inf[i].num,str)==0)
+	{
+		strcpy(inf[i].inout,str1);
+		xitongshijian(&inf[i].time[0],&inf[i].time[1],&inf[i].time[2]);
+	}
+}
+saving();
+}
+//修改函数
+int  change2()
+{
+system("cls");
+int m;
+printf("请选择所要执行的操作\n");
+printf("1.新建信息\n");
+printf("2.删除信息\n");
+printf("3.返回\n");
+scanf("%d",&m);
+while(1)
+{
+switch(m)
+{
+case 1:setting();return 0;
+case 2:delete_();return 0;
+case 3:return 0;
+}
+printf("请重新输入:");
+scanf("%d",&m);
+}return 0;
+}
+void setting()           //信息新建函数 
+{
+system("cls");
+int n,i,j;	char str;	FILE *fp;	
+if(qty==0)	
+printf("无房间信息，请新建\n");	
+printf("最多可建立100条记录");	
+while(1)	
+{		
+n=0;		
+printf("请问您是否要建立新记录(y or n)?");		
+scanf("%s",&str);	
+if(str=='n'||str=='N')			
+break;		
+if(str=='y'||str=='Y')	
+{		
+	system("cls");
+	printf("请问您需要新建多少条记录?\n");			
+	scanf("%d",&n);
+	
+	system("cls");
+	if((qty+n)>100)	
+		{				
+	printf("发生错误，请重新选择");				
+	continue;			}		
+	for(i=qty;i<(n+qty);i++)	
+		{	
+			
+			scanf("%s %s %s %s %d %d %d",inf[i].num,inf[i].human,inf[i].kind,inf[i].inout,&inf[i].time[0],&inf[i].time[1],&inf[i].time[2]);	
+		
+		}	
+if(qty==0)
+{
+fp=fopen("a","wb");
+fclose(fp);}
+if(qty!=0)
+saving();	
+
+qty=qty+n;			
+printf("现在有%d条记录",qty);		}	}}
+
+//删除函数 
+void delete_(){	
+system("cls");
+int i,j=0;char str1[5],str2[5];
+if(qty==0)
+{
+printf("没有可删除的记录\n");
+
+}
+while(1)
+{
+printf("请输入所要删除信息的房间号:");
+scanf("%s",&str1);
+loading();
+for(i=0;i<qty;i++)
+{
+if(strcmp(inf[i].num,str1)==0)
+for(j=i;j<qty;j++) 
+{
+inf[j]=inf[j+1];
+
+}}qty--;
+printf("删除成功\n");
+printf("是否继续删除(y or n)\n");
+scanf("%s",&str2);
+if(str2[0]=='n'||str2[0]=='N')
+break;
+}
+
+saving();
+}
+int xitongshijian(int *i,int *o,int *l)
+{
+    time_t timep,Tim;
+    struct tm *p;
+    time(&timep);
+    p =  localtime(&timep);
+    int Year = 1900 + p->tm_year;
+    int Month = 1 + p->tm_mon;
+    int Day = p->tm_mday;
+    int Hour = p->tm_hour;
+    int Minute = p->tm_min;
+    int Second = p->tm_sec; 
+    char year[20];
+    char month[20];
+    char day[20];
+    char hour[20];
+    char minute[20];
+    char second[20];    
+    *i=Month;*o=Day;*l=Hour;
+    return 0;   
+}
+
+int feiyongchaxun()
+{
+	system("cls");
+	printf("费用查询\n请输入房间号并按下回车\n");
+	int shijiancha_ri,shijiancha_xiaoshi;
+	char room_number[10] ;
+	double feiyong;
+	scanf("%s",room_number);
+	shijianshu(room_number,&shijiancha_ri,&shijiancha_xiaoshi);
+	feiyong=feiyongjisuan(room_number,shijiancha_ri,shijiancha_xiaoshi);
+	printf("%.2lf",feiyong);
+	return 0;
+}
+
+void shijianshu(char fangjianhao[10],int *p,int *o)
+{
+    int yue2,ri2,xiaoshi2,shijian2[3],shijiancha_ri,shijiancha_xiaoshi,i;
+    xitongshijian(&yue2,&ri2,&xiaoshi2);
+	shijian2[0]=yue2;shijian2[1]=ri2;shijian2[2]=xiaoshi2;
+	loading();
+	for(i=0;i<qty;i++)
+    {
+        if(strcmp(inf[i].num,fangjianhao)==0)
+	    break;
+	}
+    //fp=fopen("a","r+");
+	/*while(fread(&xiugai,sizeof(inf),1,fp)==1)
+	{
+		if(strcmp(xiugai.num,fangjianhao)==0)
+		{
+		    int yue1,ri1,xiaoshi1,shijian1[3];
+	        shijian1=xiugai.time;
+		    yue1=shijian1[0];ri1=shijian1[1];xiaoshi1=shijian1[2];
+		}
+	}*/
+	printf("请手动算出时间差\n");
+	printf("入住时间：%d、%d、%d\n查询时间：%d、%d、%d\n",inf[i].time[0],inf[i].time[1],inf[i].time[2],yue2,ri2,xiaoshi2);
+	printf("请输入时间差\n\n第一次输入日,第二次输入小时\n\n按日计算则小时输入0，按小时计算则日输入0\n\n");
+	printf("请输入日:    ");
+	scanf("%d",&shijiancha_ri);
+	printf("\n请输入小时:  ");
+	scanf("%d",&shijiancha_xiaoshi);
+	*p=shijiancha_ri;*o=shijiancha_xiaoshi;
+}
+
+
+    
+
+
+
+int feiyongjisuan(char fangjianhao[10],int shijiancha_ri,int shijiancha_xiaoshi)
+{
+    int feiyong,i;
+    /*fp=fopen("a","r+");
+	while(fread(&xiugai,sizeof(inf),1,fp)==1)
+	{
+		if(strcmp(xiugai.num,fangjianhao)==0)
+		{
+			printf("%s",xiugai.kind);
+		}
+	}*/
+	loading();
+	for(i=0;i<qty;i++)
+    {
+        if(strcmp(inf[i].num,fangjianhao)==0)
+	    break;
+	}
+	if(inf[i].kind[0]=='p')
+	feiyong=shijiancha_xiaoshi*10+shijiancha_ri*100;
+	else feiyong=shijiancha_xiaoshi*100+shijiancha_ri*700;
+	return feiyong;
+}
+
+void reroom()
+{
+system("cls");
+char str[5];
+char str1[]="未入住";
+char str3[30];
+FILE *fp;
+int i;
+printf("请选择要退的房间\n");
+scanf("%s",&str);
+loading();
+for(i=0;i<qty;i++)
+{
+if(strcmp(inf[i].num,str)==0)
+{
+strcpy(inf[i].inout,str1);
+}
+
+}saving();
+}
+
diff --git a/room3.exe b/room3.exe
new file mode 100644
index 0000000..0f31e9e
Binary files /dev/null and b/room3.exe differ