diff --git a/apps/common/drf/fields.py b/apps/common/drf/fields.py
index 9742f639c..270c8d91a 100644
--- a/apps/common/drf/fields.py
+++ b/apps/common/drf/fields.py
@@ -162,6 +162,8 @@ class BitChoicesField(TreeChoicesMixin, serializers.MultipleChoiceField):
         这里将获取到的值再执行一下 to_internal_value 方法, 转化为内部值
         """
         data = super().run_validation(data)
+        if isinstance(data, int):
+            return data
         value = self.to_internal_value(data)
         self.run_validators(value)
         return value
diff --git a/apps/common/utils/integer.py b/apps/common/utils/integer.py
index c87e939f0..9e657a6dd 100644
--- a/apps/common/utils/integer.py
+++ b/apps/common/utils/integer.py
@@ -1,5 +1,4 @@
 def bit(x):
-    if x == 0:
-        return 0
-    else:
-        return 2 ** (x - 1)
+    if x < 1:
+        raise ValueError("x must be greater than 1")
+    return 2 ** (x - 1)
diff --git a/apps/perms/const.py b/apps/perms/const.py
index 99495369c..cecaa5e3a 100644
--- a/apps/perms/const.py
+++ b/apps/perms/const.py
@@ -10,11 +10,11 @@ __all__ = ["ActionChoices"]
 
 
 class ActionChoices(BitChoices):
-    connect = bit(0), _("Connect")
-    upload = bit(1), _("Upload")
-    download = bit(2), _("Download")
-    copy = bit(3), _("Copy")
-    paste = bit(4), _("Paste")
+    connect = bit(1), _("Connect")
+    upload = bit(2), _("Upload")
+    download = bit(3), _("Download")
+    copy = bit(4), _("Copy")
+    paste = bit(5), _("Paste")
 
     @classmethod
     def is_tree(cls):