bug fix

include/messages.func.php

@@ -22,6 +22,7 @@ function init_messages($mode){
 function message_check_new($username)
 {
 	global $cuser,$db,$gtablepre;
+	$num = 0;
 	if($cuser){
 		//考虑到devtools.php也得先载入common.inc.php，从而如果没有建表就会直接出错，必须在这里就做判断是否存在message表
 		//而既然做了判断为什么不直接建表呢？
@@ -33,9 +34,9 @@ function message_check_new($username)
 				create_messages_db();
 			}
 		}
-	}
 		$result = $db->query("SELECT mid FROM {$gtablepre}messages WHERE receiver='$username' AND rd=0");
 		$num = $db->num_rows($result);
+	}
 	return $num;
 }