diff --git a/wchat/base/Subject.php b/wchat/base/Subject.php
index 2ebfb21..a457ed4 100644
--- a/wchat/base/Subject.php
+++ b/wchat/base/Subject.php
@@ -93,7 +93,7 @@ abstract class Subject extends Miniprogarampage
 		];
 	}
 
-	abstract public function getUrl(): string;
+	abstract public function getUrl();
 
 	/**
 	 * @return Result
diff --git a/wchat/base/Template.php b/wchat/base/Template.php
index b44ac22..e51731a 100644
--- a/wchat/base/Template.php
+++ b/wchat/base/Template.php
@@ -99,7 +99,7 @@ abstract class Template extends Miniprogarampage
 		];
 	}
 
-	abstract public function getUrl(): string;
+	abstract public function getUrl();
 
 	/**
 	 * @return Result
diff --git a/wchat/common/Config.php b/wchat/common/Config.php
index a810cfc..08a517c 100644
--- a/wchat/common/Config.php
+++ b/wchat/common/Config.php
@@ -118,7 +118,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getSslCa(): string
+	public function getSslCa()
 	{
 		return $this->ssl_ca;
 	}
@@ -136,7 +136,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getPort(): string
+	public function getPort()
 	{
 		return $this->port;
 	}
@@ -154,7 +154,7 @@ class Config
 	/**
 	 * @return bool
 	 */
-	public function isUsrSwoole(): bool
+	public function isUsrSwoole()
 	{
 		return $this->usrSwoole;
 	}
@@ -172,7 +172,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getAgent(): string
+	public function getAgent()
 	{
 		return $this->agent;
 	}
@@ -226,7 +226,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getAccessToken(): string
+	public function getAccessToken()
 	{
 		return $this->access_token;
 	}
@@ -378,7 +378,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getAppid(): string
+	public function getAppid()
 	{
 		return $this->appid;
 	}
@@ -386,7 +386,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getMchId(): string
+	public function getMchId()
 	{
 		return $this->mch_id;
 	}
@@ -394,7 +394,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getDeviceInfo(): string
+	public function getDeviceInfo()
 	{
 		return $this->device_info;
 	}
@@ -402,7 +402,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getNonceStr(): string
+	public function getNonceStr()
 	{
 		return $this->nonce_str;
 	}
@@ -410,7 +410,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getBody(): string
+	public function getBody()
 	{
 		return $this->body;
 	}
@@ -418,7 +418,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getOutTradeNo(): string
+	public function getOutTradeNo()
 	{
 		return $this->out_trade_no;
 	}
@@ -426,7 +426,7 @@ class Config
 	/**
 	 * @return int
 	 */
-	public function getTotalFee(): int
+	public function getTotalFee()
 	{
 		return $this->total_fee;
 	}
@@ -434,7 +434,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getSpbillCreateIp(): string
+	public function getSpbillCreateIp()
 	{
 		return $this->spbill_create_ip;
 	}
@@ -442,7 +442,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getNotifyUrl(): string
+	public function getNotifyUrl()
 	{
 		return $this->notify_url;
 	}
@@ -450,7 +450,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getTradeType(): string
+	public function getTradeType()
 	{
 		return $this->trade_type;
 	}
@@ -458,7 +458,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getSignType(): string
+	public function getSignType()
 	{
 		return $this->sign_type;
 	}
@@ -466,7 +466,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getMchHost(): string
+	public function getMchHost()
 	{
 		return $this->mch_host;
 	}
@@ -474,7 +474,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getAppsecret(): string
+	public function getAppsecret()
 	{
 		return $this->appsecret;
 	}
@@ -482,7 +482,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getRemoteAddr(): string
+	public function getRemoteAddr()
 	{
 		return $this->remote_addr;
 	}
@@ -490,7 +490,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getSslCert(): string
+	public function getSslCert()
 	{
 		return $this->ssl_cert;
 	}
@@ -498,7 +498,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getSslKey(): string
+	public function getSslKey()
 	{
 		return $this->ssl_key;
 	}
@@ -506,7 +506,7 @@ class Config
 	/**
 	 * @return string
 	 */
-	public function getKey(): string
+	public function getKey()
 	{
 		return $this->key;
 	}
diff --git a/wchat/common/HttpClient.php b/wchat/common/HttpClient.php
index 6c1688d..b7279e6 100644
--- a/wchat/common/HttpClient.php
+++ b/wchat/common/HttpClient.php
@@ -113,7 +113,7 @@ class HttpClient
 	/**
 	 * @return bool
 	 */
-	public function hasSslCertFile(): bool
+	public function hasSslCertFile()
 	{
 		return !empty($this->ssl_cert_file) && file_exists($this->ssl_cert_file);
 	}
@@ -121,7 +121,7 @@ class HttpClient
 	/**
 	 * @return bool
 	 */
-	public function hasSslKeyFile(): bool
+	public function hasSslKeyFile()
 	{
 		return !empty($this->ssl_key_file) && file_exists($this->ssl_key_file);
 	}
diff --git a/wchat/qq/Redhat.php b/wchat/qq/Redhat.php
index 286767c..33f2056 100644
--- a/wchat/qq/Redhat.php
+++ b/wchat/qq/Redhat.php
@@ -38,7 +38,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getKey(): string
+	public function getKey()
 	{
 		return $this->key;
 	}
@@ -56,7 +56,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getSignType(): string
+	public function getSignType()
 	{
 		return $this->signType;
 	}
@@ -74,7 +74,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getCharset(): string
+	public function getCharset()
 	{
 		return $this->charset;
 	}
@@ -92,7 +92,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getNonceStr(): string
+	public function getNonceStr()
 	{
 		return $this->nonce_str;
 	}
@@ -110,7 +110,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getSign(): string
+	public function getSign()
 	{
 		return $this->sign;
 	}
@@ -128,7 +128,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getMchBillno(): string
+	public function getMchBillno()
 	{
 		if (empty($this->mch_billno)) {
 			return '1559179381' . date('Ymd') . mt_rand(11, 99) . date('His') . mt_rand(11, 99);
@@ -149,7 +149,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getMchId(): string
+	public function getMchId()
 	{
 		return $this->mch_id;
 	}
@@ -167,7 +167,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getMchName(): string
+	public function getMchName()
 	{
 		return $this->mch_name;
 	}
@@ -185,7 +185,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getQqappid(): string
+	public function getQqappid()
 	{
 		return $this->qqappid;
 	}
@@ -203,7 +203,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getReOpenid(): string
+	public function getReOpenid()
 	{
 		return $this->re_openid;
 	}
@@ -221,7 +221,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getTotalAmount(): string
+	public function getTotalAmount()
 	{
 		return $this->total_amount;
 	}
@@ -239,7 +239,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getTotalNum(): string
+	public function getTotalNum()
 	{
 		return $this->total_num;
 	}
@@ -257,7 +257,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getWishing(): string
+	public function getWishing()
 	{
 		return $this->wishing;
 	}
@@ -275,7 +275,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getActName(): string
+	public function getActName()
 	{
 		return $this->act_name;
 	}
@@ -293,7 +293,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getIconId(): string
+	public function getIconId()
 	{
 		return $this->icon_id;
 	}
@@ -311,7 +311,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getBannerId(): string
+	public function getBannerId()
 	{
 		return $this->banner_id;
 	}
@@ -329,7 +329,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getNotifyUrl(): string
+	public function getNotifyUrl()
 	{
 		return $this->notify_url;
 	}
@@ -347,7 +347,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getNotSendMsg(): string
+	public function getNotSendMsg()
 	{
 		return $this->not_send_msg;
 	}
@@ -365,7 +365,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getMinValue(): string
+	public function getMinValue()
 	{
 		return $this->min_value;
 	}
@@ -383,7 +383,7 @@ class Redhat extends SmallProgram
 	/**
 	 * @return string
 	 */
-	public function getMaxValue(): string
+	public function getMaxValue()
 	{
 		return $this->max_value;
 	}
diff --git a/wchat/qq/Subject.php b/wchat/qq/Subject.php
index 4202fe7..b68552d 100644
--- a/wchat/qq/Subject.php
+++ b/wchat/qq/Subject.php
@@ -18,7 +18,7 @@ class Subject extends \wchat\base\Subject
 	/**
 	 * @return string
 	 */
-	public function getUrl(): string
+	public function getUrl()
 	{
 		return $this->sendUrl;
 	}
diff --git a/wchat/qq/Template.php b/wchat/qq/Template.php
index b2f3677..30b38e8 100644
--- a/wchat/qq/Template.php
+++ b/wchat/qq/Template.php
@@ -20,7 +20,7 @@ class Template extends \wchat\base\Template
 
 	private $sendUrl = 'https://api.q.qq.com/api/json/template/send';
 
-	public function getUrl(): string
+	public function getUrl()
 	{
 		return $this->sendUrl;
 	}
diff --git a/wchat/wx/ContentAsyncCheck.php b/wchat/wx/ContentAsyncCheck.php
index db02aa3..ad313ee 100644
--- a/wchat/wx/ContentAsyncCheck.php
+++ b/wchat/wx/ContentAsyncCheck.php
@@ -24,7 +24,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getToUserName(): string
+	public function getToUserName()
 	{
 		return $this->_ToUserName;
 	}
@@ -32,7 +32,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getFromUserName(): string
+	public function getFromUserName()
 	{
 		return $this->_FromUserName;
 	}
@@ -40,7 +40,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getCreateTime(): string
+	public function getCreateTime()
 	{
 		return $this->_CreateTime;
 	}
@@ -48,7 +48,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getMsgType(): string
+	public function getMsgType()
 	{
 		return $this->_MsgType;
 	}
@@ -56,7 +56,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getEvent(): string
+	public function getEvent()
 	{
 		return $this->_Event;
 	}
@@ -64,7 +64,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getIsrisky(): string
+	public function getIsrisky()
 	{
 		return $this->_isrisky;
 	}
@@ -72,7 +72,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getExtraInfoJson(): string
+	public function getExtraInfoJson()
 	{
 		return $this->_extra_info_json;
 	}
@@ -80,7 +80,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getAppid(): string
+	public function getAppid()
 	{
 		return $this->_appid;
 	}
@@ -88,7 +88,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getTraceId(): string
+	public function getTraceId()
 	{
 		return $this->_trace_id;
 	}
@@ -96,7 +96,7 @@ class ContentAsyncCheck
 	/**
 	 * @return string
 	 */
-	public function getStatusCode(): string
+	public function getStatusCode()
 	{
 		return $this->_status_code;
 	}
diff --git a/wchat/wx/Subject.php b/wchat/wx/Subject.php
index 7b8534f..30eaa66 100644
--- a/wchat/wx/Subject.php
+++ b/wchat/wx/Subject.php
@@ -18,7 +18,7 @@ class Subject extends \wchat\base\Subject
 	/**
 	 * @return string
 	 */
-	public function getUrl(): string
+	public function getUrl()
 	{
 		return $this->sendUrl;
 	}
diff --git a/wchat/wx/Template.php b/wchat/wx/Template.php
index d3acf34..f681962 100644
--- a/wchat/wx/Template.php
+++ b/wchat/wx/Template.php
@@ -16,7 +16,7 @@ class Template extends \wchat\base\Template
 {
     private string $sendUrl = 'https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send';
 
-	public function getUrl(): string
+	public function getUrl()
 	{
 		return $this->sendUrl;
 	}