Update ctaBacktesting.py

vnpy/trader/app/ctaStrategy/ctaBacktesting.py

@@ -949,7 +949,8 @@ class BacktestingEngine(object):
         
         # 显示结果
         resultList = [res.get() for res in l]
-        return resultList.sort(reverse=True, key=lambda result:result[1])
+        resultList.sort(reverse=True, key=lambda result:result[1])
+        return resultList
 
     def outputOptimizeResult(self, resultList):
         self.output('-' * 30)
@@ -1376,4 +1377,4 @@ def optimize(strategyClass, setting, targetName,
     except KeyError:
         targetValue = 0            
     return (str(setting), targetValue, d)    
-    
+