diff --git a/parser/caffe/caffe_custom_parser_adapter.cc b/parser/caffe/caffe_custom_parser_adapter.cc
index 6197ece..417a34a 100644
--- a/parser/caffe/caffe_custom_parser_adapter.cc
+++ b/parser/caffe/caffe_custom_parser_adapter.cc
@@ -79,7 +79,7 @@ Status CaffeCustomParserAdapter::ParseWeights(const Message *op_src, ge::NodePtr
   GE_CHECK_NOTNULL(op);
   const LayerParameter *layer = reinterpret_cast<const LayerParameter *>(op_src);
 
-  GE_CHK_BOOL_RET_STATUS(nullptr != layer, FAILED, "[Convert][Type]Dynamic cast op_src to LayerParameter failed");
+  GE_CHK_BOOL_RET_STATUS(layer != nullptr, FAILED, "[Convert][Type]Dynamic cast op_src to LayerParameter failed");
   GELOGI("layer: %s blobs_size: %d bottom_size: %d", layer->name().c_str(), layer->blobs_size(), layer->bottom_size());
   if (layer->blobs_size() == 0) {
     return SUCCESS;
diff --git a/parser/tensorflow/graph_optimizer.cc b/parser/tensorflow/graph_optimizer.cc
index 4b36c3c..0b4058e 100644
--- a/parser/tensorflow/graph_optimizer.cc
+++ b/parser/tensorflow/graph_optimizer.cc
@@ -452,8 +452,7 @@ Status SetNodedefProto(domi::tensorflow::NodeDef &proto, ge::NodePtr n, string o
     OpDescPtr src_opdesc = src_node->GetOpDesc();
     GELOGI("inedge src:%s, src_out_index:%d, dst:%s, dst_in_index:%d", src_opdesc->GetName().c_str(),
            src_anchor->GetIdx(), op_desc->GetName().c_str(), anchor->GetIdx());
-    string inputName;
-    inputName = src_opdesc->GetName() + ":" + "output:" + std::to_string(src_anchor->GetIdx());
+    string inputName = src_opdesc->GetName() + ":" + "output:" + std::to_string(src_anchor->GetIdx());
     GELOGI("inputName =%s\n", inputName.c_str());
     proto.add_input(inputName);
   }
diff --git a/parser/tensorflow/tensorflow_parser.cc b/parser/tensorflow/tensorflow_parser.cc
index e63afa6..03dc133 100644
--- a/parser/tensorflow/tensorflow_parser.cc
+++ b/parser/tensorflow/tensorflow_parser.cc
@@ -3251,8 +3251,7 @@ Status TensorFlowModelParser::TrimGraphByOutput(const domi::tensorflow::GraphDef
   output_graph_def->Clear();
   for (const NodeDef &node : filtered_graph_def.node()) {
     if (input_nodes.count(node.name())) {
-      NodeDef placeholder_node;
-      placeholder_node = node;
+      NodeDef placeholder_node = node;
       placeholder_node.clear_input();
       GE_IF_BOOL_EXEC(node.op() != "Placeholder", placeholder_node.set_op("Placeholder"));
       domi::tensorflow::AttrValue attr_value;