diff --git a/UI/BlockParameterModel.py b/UI/BlockParameterModel.py
index 309569e..74ce652 100644
--- a/UI/BlockParameterModel.py
+++ b/UI/BlockParameterModel.py
@@ -272,7 +272,7 @@ class VarButtonDelegate(QItemDelegate):
                 if dataType in ['Float', 'DS-36', 'Unsigned16', 'Unsigned8']:
                         pattern = re.compile(r'^[+-]?(\d+(\.\d*)?|\.\d+)$')
                         for value in values:
-                            if not value or re.findall(pattern, str(value)):
+                            if not value or not re.findall(pattern, str(value)):
                                 reply = QMessageBox.question(self.parent(),
                                                             '警告',
                                                             "请输入强制值或数字",