diff --git a/x2paddle/op_mapper/tf_op_mapper.py b/x2paddle/op_mapper/tf_op_mapper.py
index 371409508ad156ea30d97746f2900dfbf2995dd9..45276113e358187a79aeef98f4bf423448b2c530 100644
--- a/x2paddle/op_mapper/tf_op_mapper.py
+++ b/x2paddle/op_mapper/tf_op_mapper.py
@@ -297,10 +297,6 @@ class TFOpMapper(OpMapper):
         perm = perm.value.tolist()
 
         if perm == [0, 3, 1, 2] and input.data_format == "NHWC":
-            #            node.fluid_code.add_layer("assign",
-            #                                      inputs=input,
-            #                                      output=node,
-            #                                      param_attr=None)
             input_name = input.layer_name
             if hasattr(input, "index"):
                 input_name = input_name + "[{}]".format(input.index)
@@ -1006,20 +1002,6 @@ class TFOpMapper(OpMapper):
                                   output=node,
                                   param_attr=attr)
 
-
-#    def FloorDiv(self, node):
-#        x = self.graph.get_node(node.layer.input[0], copy=True)
-#        y = self.graph.get_node(node.layer.input[1], copy=True)
-#        inputs = {'x': x, 'y': y}
-#        node.fluid_code.add_layer("elementwise_div",
-#                                  inputs=inputs,
-#                                  output=node,
-#                                  param_attr=None)
-#        node.fluid_code.add_layer("floor",
-#                                  inputs=node,
-#                                  output=node,
-#                                  param_attr=None)
-
     def Split(self, node):
         dim = self.graph.get_node(node.layer.input[0], copy=True)
         input = self.graph.get_node(node.layer.input[1], copy=True)
diff --git a/x2paddle/op_mapper/tf_op_mapper_nhwc.py b/x2paddle/op_mapper/tf_op_mapper_nhwc.py
index eccbb44d8b2c45401bcdff48323d4c5f3283c9b6..fc3e43682fc2b59c6ed27556e474509667c9b55a 100644
--- a/x2paddle/op_mapper/tf_op_mapper_nhwc.py
+++ b/x2paddle/op_mapper/tf_op_mapper_nhwc.py
@@ -852,8 +852,6 @@ class TFOpMapperNHWC(OpMapper):
         input = self.graph.get_node(node.layer.input[0], copy=True)
         begin = self.graph.get_node(node.layer.input[1], copy=True)
         size = self.graph.get_node(node.layer.input[2], copy=True)
-        #        assert begin.layer_type == "Const"
-        #        assert size.layer_type == "Const"
         self.add_omit_nodes(begin.layer_name, node.layer_name)
         self.add_omit_nodes(size.layer_name, node.layer_name)
         if begin.layer_type == "Const":