first commit

zengguoqing/rili.cpp

@@ -0,0 +1,72 @@
+#include<stdio.h>
+int main()
+{
+	int i;
+	int year,month,day,sum,leap;
+	printf("1:查询某年某月有几天\n2:查询某日是一年中的第几天\n");
+	printf("请输入选项："); 
+	scanf("%d",&i);
+	while(i){
+	
+	switch(i)
+	{case 1:  printf("输入年月：");
+	          scanf("%d%d",&year,&month);
+	          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;
+		     default :day=-1;				
+		      }
+		    if(day==-1)  printf("ERROR");
+		    else
+	       printf("%d年%d月有%d天",year,month,day);
+	       return 0; 
+	          break;  
+	case 2:   int flag=0,le;
+	         printf("输入年月日：");
+ 	        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;
+	        
+    }}
+        return 0;
+}	         
+