调整信号规则逻辑

robo_executor.py

@@ -121,7 +121,7 @@ class BacktestExecutor(RoboExecutor):
             logger.info(f"build hold portfolios success, use[{(dt.now() - now).seconds}s]")
         logger.info("start to export report".center(50, '-'))
         now = dt.now()
-        file = self._export.export(max_date=self.end_date)
+        file = self._export.export(max_date=self.end_date, min_date=self.start_date)
         logger.info(f"report file[{os.path.basename(file)}] exported successfully. use[{(dt.now() - now).seconds}s].")
 
     @asynchronized(isolate=True)