diff --git a/sample/CreateWatermarkTemplateDemo.php b/sample/CreateWatermarkTemplateDemo.php
index 7fa0454..285109b 100644
--- a/sample/CreateWatermarkTemplateDemo.php
+++ b/sample/CreateWatermarkTemplateDemo.php
@@ -38,4 +38,4 @@
 } catch (\Exception $e) {
     // 请求失败
     echo($e);
-}
\ No newline at end of file
+}
diff --git a/sample/GeneratePlayListDemo.php b/sample/GeneratePlayListDemo.php
index 38818a0..b4de822 100644
--- a/sample/GeneratePlayListDemo.php
+++ b/sample/GeneratePlayListDemo.php
@@ -46,4 +46,4 @@
 } catch (\Exception $e) {
     // 请求失败
     echo($e);
-}
\ No newline at end of file
+}
diff --git a/sample/GetHLSPlayKeyDemo.php b/sample/GetHLSPlayKeyDemo.php
index 005fa4c..92f8b10 100644
--- a/sample/GetHLSPlayKeyDemo.php
+++ b/sample/GetHLSPlayKeyDemo.php
@@ -26,4 +26,4 @@
 } catch (\Exception $e) {
     // 请求失败
     echo($e);
-}
\ No newline at end of file
+}
diff --git a/sample/GetHLSTokenDemo.php b/sample/GetHLSTokenDemo.php
index 0dd18b1..301bdaa 100644
--- a/sample/GetHLSTokenDemo.php
+++ b/sample/GetHLSTokenDemo.php
@@ -17,7 +17,7 @@
     "IssuedTimeStamp" => time(),
     "ExpireTimeStamp" => time() + 3600 * 6,
     "UsageLimit" => 3,
-    "ProtectSchema" => "rsa1024",
+    "ProtectScheme" => "rsa1024",
     "PublicKey" => base64_encode($publicKey),
     "ProtectContentKey" => 1,
 );
diff --git a/sample/PostWatermarkJobsDemo.php b/sample/PostWatermarkJobsDemo.php
index 6c0ae53..8f8cec0 100644
--- a/sample/PostWatermarkJobsDemo.php
+++ b/sample/PostWatermarkJobsDemo.php
@@ -40,4 +40,4 @@
 } catch (\Exception $e) {
     // 请求失败
     echo($e);
-}
\ No newline at end of file
+}
diff --git a/sample/ZipFilePreviewDemo.php b/sample/ZipFilePreviewDemo.php
index 86275ca..a9546fc 100644
--- a/sample/ZipFilePreviewDemo.php
+++ b/sample/ZipFilePreviewDemo.php
@@ -28,4 +28,4 @@
 } catch (\Exception $e) {
     // 请求失败
     echo($e);
-}
\ No newline at end of file
+}
diff --git a/src/Client.php b/src/Client.php
index 5910366..1007fe4 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -272,11 +272,11 @@
  * @method object SearchImage(array $args) 图像检索
  * @method object UpdateDataset(array $args) 更新数据集
  * @method object UpdateFileMetaIndex(array $args) 更新元数据索引
- * @method object ZipFilePreview(array $args) // 压缩包预览同步请求
- * @method object GetHLSPlayKey(array $args) // 获取hls播放密钥
- * @method object PostWatermarkJobs(array $args) // 视频明水印-提交任务
- * @method object GeneratePlayList(array $args) // 生成播放列表
- * @method object CreateWatermarkTemplate(array $args) // 创建明水印模板
+ * @method object ZipFilePreview(array $args) 压缩包预览同步请求
+ * @method object GetHLSPlayKey(array $args) 获取hls播放密钥
+ * @method object PostWatermarkJobs(array $args) 视频明水印-提交任务
+ * @method object GeneratePlayList(array $args) 生成播放列表
+ * @method object CreateWatermarkTemplate(array $args) 创建明水印模板
  * @see \Qcloud\Cos\Service::getService()
  */
 class Client extends GuzzleClient {