diff --git a/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp b/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp
index b13d6b77c8a4f7be905d303717a323f9cc4f2830..9c09b2a345ca91fa5b527e53364db325286cf359 100644
--- a/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp
+++ b/interfaces/innerkits/native_cpp/screen_sink/src/dscreen_sink_handler.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -110,7 +110,7 @@ void DScreenSinkHandler::FinishStartSA(const std::string &params, const sptr<IRe
     }
     remoteObject->AddDeathRecipient(sinkSvrRecipient_);
     dScreenSinkProxy_ = iface_cast<IDScreenSink>(remoteObject);
-    if ((dScreenSinkProxy_== nullptr) || (dScreenSinkProxy_->AsObject() == nullptr)) {
+    if ((dScreenSinkProxy_ == nullptr) || (dScreenSinkProxy_->AsObject() == nullptr)) {
         DHLOGE("Failed to get dscreen sink proxy.");
         ReportSaFail(DSCREEN_INIT_FAIL, ERR_DH_SCREEN_SA_SINKPROXY_NOT_INIT, DISTRIBUTED_HARDWARE_SCREEN_SINK_SA_ID,
             "dscreen sink get proxy failed.");
diff --git a/services/common/decision_center/src/screen_decision_center.cpp b/services/common/decision_center/src/screen_decision_center.cpp
index 2eae20c6730bf75c0aaeb2e9a55f11e55d655f3b..283c9d9d9249454dd450698b1313f111ae71fe18 100644
--- a/services/common/decision_center/src/screen_decision_center.cpp
+++ b/services/common/decision_center/src/screen_decision_center.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -115,7 +115,7 @@ int32_t ScreenDecisionCenter::ConfigureDecisionCenter(std::shared_ptr<IImageSour
 int32_t ScreenDecisionCenter::SetJpegSurface(sptr<Surface> &surface)
 {
     DHLOGI("%{public}s: SetJpegSurface.", DSCREEN_LOG_TAG);
-    if (surface ==nullptr) {
+    if (surface == nullptr) {
         DHLOGE("%{public}s: Jpeg source is null.", DSCREEN_LOG_TAG);
         return ERR_DH_SCREEN_TRANS_NULL_VALUE;
     }
diff --git a/services/screentransport/screensourceprocessor/encoder/src/image_source_encoder.cpp b/services/screentransport/screensourceprocessor/encoder/src/image_source_encoder.cpp
index 381d35b4b7a688b3cebfd73d57b5b03c69e6c826..fa17fc66b1ba10afe54ea81d034e0c185b8cbe95 100644
--- a/services/screentransport/screensourceprocessor/encoder/src/image_source_encoder.cpp
+++ b/services/screentransport/screensourceprocessor/encoder/src/image_source_encoder.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022-2023 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -58,7 +58,7 @@ void ImageSourceEncoder::InitDscreenDBG()
     }
     GetDscreenDBGItfFunc getDscreenDBGItfFunc = (GetDscreenDBGItfFunc)dlsym(pHandler_, GET_DBG_ITF_FUNC.c_str());
     GetImageDirtyFunc getImageDirtyFunc = (GetImageDirtyFunc)dlsym(pHandler_, GET_IMAGE_DIRTY_FUNC.c_str());
-    if (getDscreenDBGItfFunc == nullptr || getImageDirtyFunc ==nullptr) {
+    if (getDscreenDBGItfFunc == nullptr || getImageDirtyFunc == nullptr) {
         DHLOGE("get FUNC failed, failed reason: %{public}s.", dlerror());
         return;
     }
diff --git a/services/screentransport/test/unittest/screensinkprocessor/src/image_sink_decoder_test.cpp b/services/screentransport/test/unittest/screensinkprocessor/src/image_sink_decoder_test.cpp
index 4b726456536e03d5c8c6d9b3ecfbe1a98cedb787..baa3e9ece7f2c82d3a639ed86d952839b7650893 100644
--- a/services/screentransport/test/unittest/screensinkprocessor/src/image_sink_decoder_test.cpp
+++ b/services/screentransport/test/unittest/screensinkprocessor/src/image_sink_decoder_test.cpp
@@ -445,7 +445,7 @@ HWTEST_F(ImageSinkDecoderTest, ProcessData_004, TestSize.Level1)
 HWTEST_F(ImageSinkDecoderTest, ProcessData_005, TestSize.Level1)
 {
     std::shared_ptr<Media::AVSharedMemory> buffer = Media::AVSharedMemoryBase::CreateFromLocal(100,
-        Media::AVSharedMemory::FLAGS_READ_WRITE, "userBuffer");;
+        Media::AVSharedMemory::FLAGS_READ_WRITE, "userBuffer");
     imageDecoder_->availableInputBufferQueue_.push(buffer);
     std::shared_ptr<DataBuffer> screenData = std::make_shared<DataBuffer>(100);
     int32_t ret = imageDecoder_->ProcessData(screenData, 0);
@@ -461,7 +461,7 @@ HWTEST_F(ImageSinkDecoderTest, ProcessData_005, TestSize.Level1)
 HWTEST_F(ImageSinkDecoderTest, ProcessData_006, TestSize.Level1)
 {
     std::shared_ptr<Media::AVSharedMemory> buffer = Media::AVSharedMemoryBase::CreateFromLocal(100,
-        Media::AVSharedMemory::FLAGS_READ_WRITE, "userBuffer");;
+        Media::AVSharedMemory::FLAGS_READ_WRITE, "userBuffer");
     imageDecoder_->availableInputBufferQueue_.push(buffer);
     std::shared_ptr<DataBuffer> screenData = std::make_shared<DataBuffer>(110);
     int32_t ret = imageDecoder_->ProcessData(screenData, 0);