src/Gateways/Wechat.php
public function close($out_trade_no = '')
    {
        $this->config['out_trade_no'] = $out_trade_no;
        $this->unsetTradeTypeAndNotifyUrl();
        return $this->getResult($this->gateway_close);
    }
public function close($out_trade_no = '')
    {
        $this->config['out_trade_no'] = $out_trade_no;
        $this->unsetTradeTypeAndNotifyUrl();
        return $this->getResult($this->gateway_close);
    }
关闭正在进行的订单
@param string $out_trade_no
@return array
@throws GatewayException