风险过高的单，放弃,bug修复

kucoinStrategy3.js

@@ -139,12 +139,14 @@ class BiboxStrategy3 extends Strategy3 {
     return 0.08;
   }
   _giveUpOrder(baseCurrency1, midCurrency, baseCurrency2,totalMarginRate,buyDepth,sellDepth){
-    const sellDepth  = this.collector.getDepth(midCurrency, baseCurrency2, 2);
-    const possibleLoss = (sellDepth[0][1] - sellDepth[1][1])/sellDepth[0][1];
+    if(sellDepth ===1){
+      const sellPrices  = this.collector.getDepth(midCurrency, baseCurrency2, 2);
+      const possibleLoss = (sellPrices[0][0] - sellPrices[1][0])/sellPrices[0][0];
       if(possibleLoss*100 > totalMarginRate){
-      console.log(`此单风险过高，放弃。损失率${possibleLoss}`);
+        console.log(`此单风险过高，放弃。买一：${sellPrices[0][0]},卖二：${sellPrices[1][0]},损失率${possibleLoss}`);
         return true;
       }
+    }
     return super._giveUpOrder(baseCurrency1,midCurrency,baseCurrency2,totalMarginRate,buyDepth,sellDepth);
   }