修复当信号值为0时赋值出错

can_dbc_related/dbc_manage.py

@@ -43,8 +43,12 @@ class CANCodec:
         # 构造信号值
         signal_data = {}
         for signal in message.signals:
-            default_value = signal.minimum if signal.minimum is not None else 0
-            signal_data[signal.name] = default_value
+            signal_name = signal.name
+
+            if signal_name in signal_values:
+                signal_data[signal_name] = signal_values[signal_name]
+            else:
+                signal_data[signal_name] = 0
 
         # 是否更新用户提供的信号值
         if signal_values: