誰かファイルの内容を復号化するのを手伝ってくれませんか?ありがとう

文件名:Service.php
找了很多方法都不解密成功，特到此来求援。谢谢

回返论(解決案)

<?phpsession_start();//error_reporting(0);include "Include/Global.php";$Act=$_GET['Act'];function iconv_($str){return iconv("UTF-8","GBK",$str);}switch($Act){	case "Login":		$Name=iconv_($db->fhtml(trim($_POST['Name'])));		$PassWord=iconv_($db->fhtml($_POST['PassWord']));		$RoomId=iconv_($db->fhtml($_POST['RoomId']));		$UserSex=$_POST['UserSex']=='true'?'0':'1';		Login($Name,$PassWord,$UserSex,$RoomId);	break;	case "ListOnLineUser":		ListOnLineUser($db->fhtml($_GET['RoomId']));	break;	case "KeepLine":		$ChatId	=$db->fhtml($_GET['ChatId']);		$UsersOrder	=$db->fhtml($_GET['UsersOrder']);		KeepLine($ChatId,$UsersOrder);	break;	case "SetColor":		$ChatId	=$db->fhtml($_GET['ChatId']);		$Color	=$db->fhtml($_GET['Color']);		SetColor($ChatId,$Color);	break;	case "GetColor":		$ChatId	=$db->fhtml($_GET['ChatId']);		GetColor($ChatId);	break;	case "SendMSG":		$MsgId=$db->fhtml($_POST['MsgId']);		$FontWeight=iconv_($db->fhtml($_POST['FontWeight']));		$IsPublic=$db->fhtml($_POST['IsPublic']);		$FromChatId=$db->fhtml($_POST['FromChatId']);		$ToChatId=$db->fhtml($_POST['ToChatId']);		$ExpWord=iconv_($db->fhtml($_POST['ExpWord']));		$Content=iconv_($db->fhtml(trim($_POST['Content'])));		SendMSG($MsgId,$FontWeight,$IsPublic,$FromChatId,$ToChatId,$ExpWord,$Content);	break;	case "GetMSG":		$ChatId		=$db->fhtml($_GET['ChatId']);		$MsgId		=$db->fhtml($_GET['MsgId']);		GetMSG($ChatId,$MsgId);	break;	case "EditName":		$Name=$db->fhtml($_POST['Name']);		EditName(trim($Name));	break;	case "RegId":		$Name=$db->fhtml($_POST['UserName']);		$Pwd=$db->fhtml($_POST['Pwd']);		$Sex=$db->fhtml($_POST['UserSex']);		$Age=$db->fhtml($_POST['Age']);		if($db->sqlnum($db->query("select * from chat_user where UserName='$Name'"))>0)		exit("<script>alert('?????????????');</script>");		RegId($Name,$Pwd,$Sex,$Age);		exit("<script>alert('??????');</script>");	break;	case "ExitChat":		ExitChat();	break;}?>

もっと見る。