diff --git a/src/framework/operator.h b/src/framework/operator.h
index 07d2c62790ca0ed4bd07efbe06b9b9f4ccbf4fe0..c85a38d73c620ae4b08387b548bd2f4f8ca71711 100644
--- a/src/framework/operator.h
+++ b/src/framework/operator.h
@@ -111,9 +111,7 @@ class OperatorWithKernel : public OperatorBase<Dtype> {
                      const VariableNameMap &outputs, const AttributeMap &attrs,
                      std::shared_ptr<Scope> scope)
       : OperatorBase<Dtype>(type, inputs, outputs, attrs, scope),
-        param_(inputs, outputs, attrs, *scope) {
-
-  }
+        param_(inputs, outputs, attrs, *scope) {}
 
   virtual void RunImpl() const { this->kernel_.Compute(this->param_); }
 
diff --git a/src/io/io.cpp b/src/io/io.cpp
index 5fee3145373bf1c080ec5efc0da4fcd121d937a1..c7f8f174ac825463f66fd50b72e0c58d50bd537e 100644
--- a/src/io/io.cpp
+++ b/src/io/io.cpp
@@ -200,9 +200,9 @@ Executor<Dtype, P>::Executor(const framework::Program<Dtype> p, int batch_size,
   }
 
   std::shared_ptr<framework::BlockDesc> to_predict_block =
-          to_predict_program_->Block(0);
+      to_predict_program_->Block(0);
   auto &ops = ops_of_block_[*to_predict_block.get()];
-  for (const auto &op: ops) {
+  for (const auto &op : ops) {
     op->Init();
   }
 }
diff --git a/src/operators/kernel/arm/box_coder_kernel.cpp b/src/operators/kernel/arm/box_coder_kernel.cpp
index 7c2f1713f21f179778b4a6b7e6722ce1ed9164e3..02ec85a444c380ba76d64b0d15d35ce27b9eaf44 100644
--- a/src/operators/kernel/arm/box_coder_kernel.cpp
+++ b/src/operators/kernel/arm/box_coder_kernel.cpp
@@ -110,7 +110,7 @@ void DecodeCenterSize(const framework::Tensor& target_box,
 }
 
 template <>
-bool BoxCoderKernel<CPU, float>::Init(const BoxCoderParam &para) const {
+bool BoxCoderKernel<CPU, float>::Init(const BoxCoderParam& para) const {
   return true;
 }
 
diff --git a/src/operators/kernel/arm/conv_add_relu_kernel.cpp b/src/operators/kernel/arm/conv_add_relu_kernel.cpp
index f77c1c1946fbf7becf77235513335d4beeabfbef..2df48222e0923e403f2ad44b3d5c4a89aceb4cc4 100644
--- a/src/operators/kernel/arm/conv_add_relu_kernel.cpp
+++ b/src/operators/kernel/arm/conv_add_relu_kernel.cpp
@@ -20,7 +20,8 @@ namespace paddle_mobile {
 namespace operators {
 
 template <>
-bool ConvAddReluKernel<CPU, float>::Init(const FusionConvAddReluParam &para) const {
+bool ConvAddReluKernel<CPU, float>::Init(
+    const FusionConvAddReluParam &para) const {
   return true;
 }
 
diff --git a/src/operators/kernel/arm/elementwise_add_kernel.cpp b/src/operators/kernel/arm/elementwise_add_kernel.cpp
index c5fb3349a922a3967a7f69a5fcf4550b10aceb34..2f5e26a37e4f2c1d370805ee7b565a60f4748b0a 100644
--- a/src/operators/kernel/arm/elementwise_add_kernel.cpp
+++ b/src/operators/kernel/arm/elementwise_add_kernel.cpp
@@ -27,7 +27,8 @@ struct AddFunctor {
 };
 
 template <>
-bool ElementwiseAddKernel<CPU, float>::Init(const ElementwiseAddParam &para) const {
+bool ElementwiseAddKernel<CPU, float>::Init(
+    const ElementwiseAddParam &para) const {
   return true;
 }
 
diff --git a/src/operators/kernel/arm/multiclass_nms_kernel.cpp b/src/operators/kernel/arm/multiclass_nms_kernel.cpp
index d0e1f9c8707f70cee502ae3ed84fa71b7cfd6df1..58f224ab536173fff46bb1739b27590382fbab6d 100644
--- a/src/operators/kernel/arm/multiclass_nms_kernel.cpp
+++ b/src/operators/kernel/arm/multiclass_nms_kernel.cpp
@@ -206,7 +206,8 @@ void MultiClassOutput(const Tensor& scores, const Tensor& bboxes,
 }
 
 template <>
-bool MultiClassNMSKernel<CPU, float>::Init(const MultiClassNMSParam &para) const {
+bool MultiClassNMSKernel<CPU, float>::Init(
+    const MultiClassNMSParam& para) const {
   return true;
 }
 
diff --git a/src/operators/kernel/arm/transpose_kernel.cpp b/src/operators/kernel/arm/transpose_kernel.cpp
index 73953a83dc3fd443dff71a9701523730d8f0c574..a44ff22a2f228cc357c066a01e142de7cc4f2083 100644
--- a/src/operators/kernel/arm/transpose_kernel.cpp
+++ b/src/operators/kernel/arm/transpose_kernel.cpp
@@ -35,7 +35,7 @@ namespace operators {
 // }
 
 template <>
-bool TransposeKernel<CPU, float>::Init(const TransposeParam &para) const {
+bool TransposeKernel<CPU, float>::Init(const TransposeParam& para) const {
   return true;
 }
 
diff --git a/src/operators/kernel/box_coder_kernel.h b/src/operators/kernel/box_coder_kernel.h
index 983039018c5d964c61a4560b341e3bf9b28e9a36..4c4206f52b3ffc5e60983bf1d6adb25292d01ac4 100644
--- a/src/operators/kernel/box_coder_kernel.h
+++ b/src/operators/kernel/box_coder_kernel.h
@@ -30,7 +30,7 @@ class BoxCoderKernel
     : public framework::OpKernelBase<DeviceType, BoxCoderParam> {
  public:
   void Compute(const BoxCoderParam& param) const;
-  bool Init(const BoxCoderParam &para) const;
+  bool Init(const BoxCoderParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/fusion_fc_kernel.h b/src/operators/kernel/fusion_fc_kernel.h
index e6279fd405b61850bec5b09d3e6f919e8727463c..c4e2b30176fb904d7fb906c5efc5137a5dcb8d59 100644
--- a/src/operators/kernel/fusion_fc_kernel.h
+++ b/src/operators/kernel/fusion_fc_kernel.h
@@ -28,7 +28,7 @@ class FusionFcKernel
     : public framework::OpKernelBase<DeviceType, FusionFcParam> {
  public:
   void Compute(const FusionFcParam& param) const;
-  bool Init(const FusionFcParam &para) const;
+  bool Init(const FusionFcParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/multiclass_nms_kernel.h b/src/operators/kernel/multiclass_nms_kernel.h
index bf9294a60785ef6ebd2055a97aeaede8a1cb9ab3..ca86604f2c6e550c219e54b6533c1500fb2912c4 100644
--- a/src/operators/kernel/multiclass_nms_kernel.h
+++ b/src/operators/kernel/multiclass_nms_kernel.h
@@ -28,7 +28,7 @@ class MultiClassNMSKernel
     : public framework::OpKernelBase<DeviceType, MultiClassNMSParam> {
  public:
   void Compute(const MultiClassNMSParam& param) const;
-  bool Init(const MultiClassNMSParam &para) const;
+  bool Init(const MultiClassNMSParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/prior_box_kernel.h b/src/operators/kernel/prior_box_kernel.h
index aba410fa3e1508b1622aa3446d85518fd7d4262e..be13f0fc16c0c0c0b16117a46b80a9f9acdeffae 100644
--- a/src/operators/kernel/prior_box_kernel.h
+++ b/src/operators/kernel/prior_box_kernel.h
@@ -54,7 +54,7 @@ class PriorBoxKernel
     : public framework::OpKernelBase<DeviceType, PriorBoxParam> {
  public:
   void Compute(const PriorBoxParam& param) const;
-  bool Init(const PriorBoxParam &para) const;
+  bool Init(const PriorBoxParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/relu_kernel.h b/src/operators/kernel/relu_kernel.h
index 6bbc6158a05821ea76783f611eda36da8ab2b812..2155c33811f553435e4a89b5b23533e2bd42db5d 100644
--- a/src/operators/kernel/relu_kernel.h
+++ b/src/operators/kernel/relu_kernel.h
@@ -27,7 +27,7 @@ template <typename DeviceType, typename T>
 class ReluKernel : public framework::OpKernelBase<DeviceType, ReluParam> {
  public:
   void Compute(const ReluParam& param) const;
-  bool Init(const ReluParam &para) const;
+  bool Init(const ReluParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/reshape_kernel.h b/src/operators/kernel/reshape_kernel.h
index d217120cdb028758441e28f6896cf4f463ceda4e..364f5b0902c2661017f2e72520849836f64dd0bb 100644
--- a/src/operators/kernel/reshape_kernel.h
+++ b/src/operators/kernel/reshape_kernel.h
@@ -71,7 +71,7 @@ template <typename DeviceType, typename T>
 class ReshapeKernel : public framework::OpKernelBase<DeviceType, ReshapeParam> {
  public:
   void Compute(const ReshapeParam& param) const;
-  bool Init(const ReshapeParam &para) const;
+  bool Init(const ReshapeParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/sigmoid_kernel.h b/src/operators/kernel/sigmoid_kernel.h
index ea9c5b9486cbb22f4fbd78c107bc14edc6f0b988..e9eaae5ad867c6880db7346f9632ff37a92aaf66 100644
--- a/src/operators/kernel/sigmoid_kernel.h
+++ b/src/operators/kernel/sigmoid_kernel.h
@@ -26,7 +26,7 @@ template <typename DeviceType, typename T>
 class SigmoidKernel : public OpKernelBase<DeviceType, SigmoidParam> {
  public:
   void Compute(const SigmoidParam& param) const override;
-  bool Init(const SigmoidParam &para) const;
+  bool Init(const SigmoidParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile
diff --git a/src/operators/kernel/transpose_kernel.h b/src/operators/kernel/transpose_kernel.h
index 3c2cd1619d0094ed95118ae38a2b98f91dc84a33..6526d97df9863392f783841a784cb5df4e45f218 100644
--- a/src/operators/kernel/transpose_kernel.h
+++ b/src/operators/kernel/transpose_kernel.h
@@ -29,7 +29,7 @@ class TransposeKernel
     : public framework::OpKernelBase<DeviceType, TransposeParam> {
  public:
   void Compute(const TransposeParam& param) const;
-  bool Init(const TransposeParam &para) const;
+  bool Init(const TransposeParam& para) const;
 };
 }  // namespace operators
 }  // namespace paddle_mobile