diff --git a/124.cpp b/124.cpp
new file mode 100644
index 0000000..e204c3e
--- /dev/null
+++ b/124.cpp
@@ -0,0 +1,145 @@
+#include <stdio.h> 
+#include <stdlib.h> 
+int printfweek() 
+{ 
+printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\t\n","周日","周一","周二","周三","周四","周五","周六"); 
+}
+ int yearr(int year) 
+{ 
+if (year%4==0&&year%100||year%400==0)
+return 1;
+else
+return 0; 
+} 
+
+int tian(int month,int year) 
+{ 
+int day; 
+switch (month) 
+{ 
+case 1: 
+case 3: 
+case 5: 
+case 7: 
+case 8: 
+case 10: 
+case 12:day=31;break; 
+case 4: 
+case 6: 
+case 9: 
+case 11:day=30;break; 
+case 2:{
+              if(year%400==0||(year%4==0&&year%100!=0))
+			   day=29;
+		     	else
+			   day=28;
+		    	}
+				break; 
+
+} 
+return day; 
+} 
+
+int prifirst(int month,int year) 
+{ 
+int b; 
+if (month<3) 
+{ 
+month=month+12; 
+year--; 
+} 
+b=(1+2*month+3*(month+1)/5+year+year/4-year/100+year/400)%7; 
+return b; 
+} 
+int prtmonth(int month) 
+{ 
+switch (month) 
+{ 
+case 1:printf("%26s\n","一月\n");break; 
+case 2:printf("%26s\n","二月\n");break; 
+case 3:printf("%26s\n","三月\n");break;
+case 4:printf("%26s\n","四月\n");break; 
+case 5:printf("%26s\n","五月\n");break;
+case 6:printf("%26s\n","六月\n");break;
+case 7:printf("%26s\n","七月\n");break;
+case 8:printf("%26s\n","八月\n");break;
+case 9:printf("%26s\n","九月\n");break;
+case 10:printf("%26s\n","十月\n");break; 
+case 11:printf("%26s\n","十一月\n");break; 
+case 12:printf("%26s\n","十二月\n");break;
+} 
+}
+int main() 
+{ int a;
+  int year,month,i,c,week; 
+  printf("1:查询某一年日历\n2:查询某年某月有几天\n3:查询某日是一年中的第几天\n");
+  printf("请输入选项：\n") ;
+scanf("%d",&a);
+switch(a)
+{
+  case 1:printf("年份\n:"); 
+      scanf("%d",&year); 
+      for (month=1; month<=12; month++) { 
+      c=1; 
+      prtmonth(month); 
+      printfweek(); 
+      week=prifirst(month,year);
+      if (week!=6) 
+      for (i=0; i<=week; i++) { 
+      printf("\t"); 
+      c++; 
+} 
+ for (i=1; i<=tian(month,year); i++,c++) 
+ { 
+ printf("%d\t",i); 
+ if (c%7==0) 
+ { 
+ printf("\n");
+ } 
+} 
+printf("\n"); 
+} 
+return 0; 
+break;
+case 2:int day;
+ printf("输入年月：\n");
+         scanf("%d%d",&year,&month);
+		 day=tian(month,year);
+	       printf("%d年%d月有%d天",year,month,day);
+	       return 0; 
+	        break;
+case 3:int flag=0,le,sum;
+	         printf("输入年月日：\n");
+ 	        scanf("%d%d%d",&year,&month,&day);
+	        switch(month)
+	       { case 1:sum=0;break;
+	         case 2:sum=31;break;
+	         case 3:sum=59;break;
+	         case 4:sum=90;break;
+	         case 5:sum=120;break;
+             case 6:sum=151;break;
+	         case 7:sum=181;break;
+             case 8:sum=212;break;
+	         case 9:sum=243;break;
+	         case 10:sum=273;break;
+	         case 11:sum=304;break;
+	         case 12:sum=334;break;
+	         default:flag=1;
+	       }
+             if(flag==0)
+	         {
+			 sum=sum+day;
+	          if(year%400==0||(year%4==0&&year%100!=0))
+            	le=1;
+				else
+	            le=0;
+	           if(le=1&&month>2)
+	          sum++;
+	               printf("%d月%d日是%d年的第%d天",month,day,year,sum);
+				   return 0;
+	          } 
+			  break;
+}
+
+
+} 
diff --git a/124.exe b/124.exe
new file mode 100644
index 0000000..ecb39c5
Binary files /dev/null and b/124.exe differ