feat：增加异常处理

@@ -41,6 +41,7 @@ use trader\struct\IndexTicker;
 use \Exception;
 use function jytools\timeFormat;
 use function jytools\getMicrotime;
+use function jytools\output;
 
 class CmBroker
 {
@@ -711,11 +712,18 @@ class CmBroker
             $posSide = strtolower($posSide);
             $symbolInfo = $this->symbolInfos[$symbol];
             $lot = $this->exBroker->getPos($symbolOri, $posSide);
+            if ($lot === false) {
+                return false;
+            }
             $qty = round($lot * $symbolInfo->ctVal, $symbolInfo->qtyPrec);
             if ($this->posMode != self::MODE_ONE_SIDE) {
                 $qty = abs($qty);
                 $lot = abs($lot);
             }
+            if ($lot != 0 && $qty == 0) {
+                output("获取仓位异常，持仓合约张数与币数异常", $symbol, $posSide, $lot, $qty, "合约面值：", $symbolInfo->ctVal);
+                return false;
+            }
             return $qty;
         } else {
             throw new \Exception("获取仓位失败,当前交易所未实现该方法");