fix bugs

app/utils/object.py

@@ -7,10 +7,18 @@ class ObjectUtils:
 
     @staticmethod
     def is_obj(obj: Any):
-        if isinstance(obj, list) or isinstance(obj, dict):
+        if isinstance(obj, list) \
+                or isinstance(obj, dict):
             return True
+        elif isinstance(obj, str) \
+                or isinstance(obj, int) \
+                or isinstance(obj, float) \
+                or isinstance(obj, bool) \
+                or isinstance(obj, bytes):
+            return False
         else:
-            return str(obj).startswith("{") or str(obj).startswith("[")
+            return str(obj).startswith("{") \
+                or str(obj).startswith("[")
 
     @staticmethod
     def arguments(func: Callable) -> int:

app/utils/timer.py

@@ -42,11 +42,17 @@ class TimerUtils:
 
     @staticmethod
     def time_difference(input_datetime: datetime) -> str:
+        """
+        判断输入时间与当前的时间差，如果输入时间大于当前时间则返回时间差，否则返回空字符串
+        """
         if not input_datetime:
             return ""
         current_datetime = datetime.datetime.now(datetime.timezone.utc).astimezone()
         time_difference = input_datetime - current_datetime
 
+        if time_difference.total_seconds() < 0:
+            return ""
+
         days = time_difference.days
         hours, remainder = divmod(time_difference.seconds, 3600)
         minutes, _ = divmod(remainder, 60)