feat:优化开平仓参数

@@ -146,8 +146,14 @@ class Order
         /** @var SymbolInfo $symbolInfo */
         /** @var SymbolInfo $symbolInfo */
         $symbolInfo = $symbolInfos[$this->symbol];
         $symbolInfo = $symbolInfos[$this->symbol];
         $tradeSide = "open";
         $tradeSide = "open";
-        if (($this->posSide == "SHORT" && $this->side == "BUY") || ($this->posSide == "LONG" && $this->side == "SELL")) {
+        $side = $this->side;
+        if ($this->posSide == "SHORT" && $this->side == "BUY") {
             $tradeSide = "close";
             $tradeSide = "close";
+            $side = "SELL";
+        }
+        if ($this->posSide == "LONG" && $this->side == "SELL") {
+            $tradeSide = "close";
+            $side = "BUY";
         }
         }
         $timeInForce = "GTC";
         $timeInForce = "GTC";
         if ($this->ordType == "IOC") {
         if ($this->ordType == "IOC") {
@@ -163,7 +169,7 @@ class Order
             'marginMode' => 'crossed',
             'marginMode' => 'crossed',
             'marginCoin' => 'USDT',
             'marginCoin' => 'USDT',
             'symbol' => $symbol,
             'symbol' => $symbol,
-            'side' => strtolower($this->side),
+            'side' => strtolower($side),
             'orderType' => strtolower($this->ordType),
             'orderType' => strtolower($this->ordType),
             'price' => (string)round($this->price, $symbolInfo->pricePrec),
             'price' => (string)round($this->price, $symbolInfo->pricePrec),
             'size' => (string)round($this->qty, $symbolInfo->qtyPrec),
             'size' => (string)round($this->qty, $symbolInfo->qtyPrec),