feat:下单数量报错，ping pong过滤

@@ -164,10 +164,13 @@ class CmBroker
             $orderOri = $order->toOkxOrder($this->symbolInfos, function ($symbol) {
                 return $this->getSymbolOri($symbol, $this->plat);
             });
+            /** @var SymbolInfo $symbolInfo */
+            $symbolInfo = $this->symbolInfos[$order->symbol];
             $this->msg("下单", $orderOri);
             if ($orderOri['sz'] == 0) {
-                $this->msg("下单数量为0，不下单", $orderOri);
-                return ["code" => 1, "msg" => "下单数量为0，不下单"];
+                $msg = "当前下单数量为{$order->qty},最小下单数量为{$symbolInfo->minQty}，不下单";
+                $this->msg($msg, $orderOri);
+                return ["code" => 2, "msg" => $msg];
             }
             $res = $this->exBroker->placeOrder($orderOri);
             $this->msg("下单结果", $res);

@@ -135,6 +135,9 @@ class ExBroker
     // ws 消息预处理
     private function onWsDataPre($data, callable $onWsData)
     {
+        if ($data == "ping" || $data == "pong") {
+            return;
+        }
         $data = json_decode($data, true);
         if (isset($data['event'])) {
             if ($data['event'] == 'login' && $data['code'] == '0') {