diff --git a/wx/Account.php b/wx/Account.php
index 3513e1a..fdf9549 100644
--- a/wx/Account.php
+++ b/wx/Account.php
@@ -16,6 +16,13 @@ class Account extends Miniprogarampage
 
 	private $savePath = __DIR__ . '/../../../';
 
+
+	private $OK = 0;
+	private $IllegalAesKey = -41001;
+	private $IllegalIv = -41002;
+	private $IllegalBuffer = -41003;
+	private $DecodeBase64Error = -41004;
+
 	/**
 	 * @param $path
 	 */
@@ -42,6 +49,52 @@ class Account extends Miniprogarampage
 	}
 
 
+	/**
+	 * @param $encryptedData
+	 * @param $iv
+	 * @param $sessionKey
+	 * @param $asArray
+	 * @return object|array
+	 * @throws
+	 *
+	 *  *    <li>-41001: encodingAesKey 非法</li>
+	 *    <li>-41003: aes 解密失败</li>
+	 *    <li>-41004: 解密后得到的buffer非法</li>
+	 *    <li>-41005: base64加密失败</li>
+	 *    <li>-41016: base64解密失败</li>
+	 */
+	public function decode($encryptedData, $iv, $sessionKey, $asArray = false)
+	{
+		$config = Wx::getMiniProGaRamPage()->getConfig();
+		if (strlen($sessionKey) != 24) {
+			throw new \Exception('encodingAesKey 非法', $this->IllegalAesKey);
+		}
+
+		$aesKey = base64_decode($sessionKey);
+		if (strlen($iv) != 24) {
+			throw new \Exception('base64解密失败', $this->IllegalIv);
+		}
+
+		$aesIV = base64_decode($iv);
+		$aesCipher = base64_decode($encryptedData);
+		$result = openssl_decrypt($aesCipher, "AES-128-CBC", $aesKey, OPENSSL_RAW_DATA, $aesIV);
+		if ($result === false) {
+			throw new \Exception('aes 解密失败', $this->IllegalBuffer);
+		}
+
+		$dataObj = json_decode($result);
+		if ($dataObj->watermark->appid != $config->getAppid()) {
+			throw new \Exception('aes 解密失败', $this->IllegalBuffer);
+		}
+
+		if ($asArray) {
+			return get_object_vars($dataObj);
+		}
+
+		return $dataObj;
+	}
+
+
 	/**
 	 * @param $path
 	 * @param $width
diff --git a/wx/Help.php b/wx/Help.php
index 0c6ddf8..a084675 100644
--- a/wx/Help.php
+++ b/wx/Help.php
@@ -6,58 +6,7 @@ namespace wchat;
 
 class Help extends Miniprogarampage
 {
-	public static $OK = 0;
-	public static $IllegalAesKey = -41001;
-	public static $IllegalIv = -41002;
-	public static $IllegalBuffer = -41003;
-	public static $DecodeBase64Error = -41004;
-
-	/**
-	 * @param $encryptedData
-	 * @param $iv
-	 * @param $sessionKey
-	 * @param $asArray
-	 * @return object|array
-	 * @throws
-	 *
-	 *  *    <li>-41001: encodingAesKey 非法</li>
-	 *    <li>-41003: aes 解密失败</li>
-	 *    <li>-41004: 解密后得到的buffer非法</li>
-	 *    <li>-41005: base64加密失败</li>
-	 *    <li>-41016: base64解密失败</li>
-	 */
-	public static function decode($encryptedData, $iv, $sessionKey, $asArray = false)
-	{
-		$config = Wx::getMiniProGaRamPage()->getConfig();
-		if (strlen($sessionKey) != 24) {
-			throw new \Exception('encodingAesKey 非法', self::$IllegalAesKey);
-		}
-
-		$aesKey = base64_decode($sessionKey);
-		if (strlen($iv) != 24) {
-			throw new \Exception('base64解密失败', self::$IllegalIv);
-		}
-
-		$aesIV = base64_decode($iv);
-		$aesCipher = base64_decode($encryptedData);
-		$result = openssl_decrypt($aesCipher, "AES-128-CBC", $aesKey, OPENSSL_RAW_DATA, $aesIV);
-		if ($result === false) {
-			throw new \Exception('aes 解密失败', self::$IllegalBuffer);
-		}
-
-		$dataObj = json_decode($result);
-		if ($dataObj->watermark->appid != $config->getAppid()) {
-			throw new \Exception('aes 解密失败', self::$IllegalBuffer);
-		}
-
-		if ($asArray) {
-			return get_object_vars($dataObj);
-		}
-
-		return $dataObj;
-	}
-
-
+	
 	/**
 	 * @param array $data
 	 * @return string