diff --git a/lib/core/Handles/HandlesExprUtils.py b/lib/core/Handles/HandlesExprUtils.py
index c80f7d0..5bcd5d3 100644
--- a/lib/core/Handles/HandlesExprUtils.py
+++ b/lib/core/Handles/HandlesExprUtils.py
@@ -177,6 +177,12 @@ class ExprUtils:
         FullMethodName: str = f'{ClassName}.{op_name}'
         if not Gen._has_function(FullMethodName):
             FullMethodName = f'{ClassName}.{op_name}__'
+        if not Gen._has_function(FullMethodName) and '[' in ClassName:
+            # 泛型特化方法尚未生成时，回退到裸模板类的方法（如 list.__len__）
+            _BareClass: str = ClassName.split('[', 1)[0]
+            FullMethodName = f'{_BareClass}.{op_name}'
+            if not Gen._has_function(FullMethodName):
+                FullMethodName = f'{_BareClass}.{op_name}__'
         if not Gen._has_function(FullMethodName):
             # 多继承：沿 MRO 祖先链查找 dunder 方法（先声明父类优先，与 VPC 一致）
             for anc in Gen._get_mro_chain(ClassName)[1:]: