* AVCloud.cs: chore

* AVFile.cs:
* AVUploadProgressEventArgs.cs:
* AVDownloadProgressEventArgs.cs:

Storage/Storage/Public/AVCloud.cs

@@ -7,18 +7,8 @@ using System.Net.Http;
 
 namespace LeanCloud {
     /// <summary>
-    /// The AVCloud class provides methods for interacting with LeanCloud Cloud Functions.
+    /// AVCloud，提供与 LeanCloud 云函数交互的接口
     /// </summary>
-    /// <example>
-    /// For example, this sample code calls the
-    /// "validateGame" Cloud Function and calls processResponse if the call succeeded
-    /// and handleError if it failed.
-    ///
-    /// <code>
-    /// var result =
-    ///     await AVCloud.CallFunctionAsync&lt;IDictionary&lt;string, object&gt;&gt;("validateGame", parameters);
-    /// </code>
-    /// </example>
     public static class AVCloud {
         internal static AVCloudCodeController CloudCodeController {
             get {
@@ -111,13 +101,12 @@ namespace LeanCloud {
 
         /// <summary>
         /// 发送手机短信，并指定模板以及传入模板所需的参数。
-        /// Exceptions:
-        ///   AVOSCloud.AVException:
-        ///   手机号为空。
+        /// </summary>
         /// <param name="mobilePhoneNumber"></param>
-        /// <param name="template">Sms's template</param>
-        /// <param name="env">Template variables env.</param>
-        /// <param name="sign">Sms's sign.</param>
+        /// <param name="template"></param>
+        /// <param name="env"></param>
+        /// <param name="sign"></param>
+        /// <param name="validateToken"></param>
         /// <returns></returns>
         public static Task RequestSMSCodeAsync(
             string mobilePhoneNumber,
@@ -218,7 +207,6 @@ namespace LeanCloud {
             /// Verify the user's input of catpcha.
             /// </summary>
             /// <param name="code">User's input of this captcha.</param>
-            /// <param name="cancellationToken">CancellationToken.</param>
             /// <returns></returns>
             public Task VerifyAsync(string code) {
                 return AVCloud.VerifyCaptchaAsync(code, Token);

Storage/Storage/Public/AVDownloadProgressEventArgs.cs

@@ -1,15 +0,0 @@
-using System;
-
-namespace LeanCloud {
-  /// <summary>
-  /// Represents download progress.
-  /// </summary>
-  public class AVDownloadProgressEventArgs : EventArgs {
-    public AVDownloadProgressEventArgs() { }
-
-    /// <summary>
-    /// Gets the progress (a number between 0.0 and 1.0) of a download.
-    /// </summary>
-    public double Progress { get; set; }
-  }
-}

Storage/Storage/Public/AVFile.cs

@@ -272,38 +272,15 @@ namespace LeanCloud {
 
         #region Save
 
-        /// <summary>
-        /// Saves the file to the LeanCloud cloud.
-        /// </summary>
-        public Task SaveAsync() {
-            return SaveAsync(null, CancellationToken.None);
-        }
-
-        /// <summary>
-        /// Saves the file to the LeanCloud cloud.
-        /// </summary>
-        /// <param name="cancellationToken">The cancellation token.</param>
-        public Task SaveAsync(CancellationToken cancellationToken) {
-            return SaveAsync(null, cancellationToken);
-        }
-
-        /// <summary>
-        /// Saves the file to the LeanCloud cloud.
-        /// </summary>
-        /// <param name="progress">The progress callback.</param>
-        public Task SaveAsync(IProgress<AVUploadProgressEventArgs> progress) {
-            return SaveAsync(progress, CancellationToken.None);
-        }
-
         /// <summary>
         /// Saves the file to the LeanCloud cloud.
         /// </summary>
         /// <param name="progress">The progress callback.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
-        public Task SaveAsync(IProgress<AVUploadProgressEventArgs> progress,
-            CancellationToken cancellationToken) {
-            if (this.isExternal)
-                return this.SaveExternal();
+        public Task SaveAsync(IProgress<AVUploadProgressEventArgs> progress = null,
+            CancellationToken cancellationToken = default) {
+            if (isExternal)
+                return SaveExternal();
 
             return taskQueue.Enqueue(
                 toAwait => FileController.SaveAsync(state, dataStream, progress, cancellationToken), cancellationToken)

Storage/Storage/Public/AVUploadProgressEventArgs.cs

@@ -5,7 +5,6 @@ namespace LeanCloud {
   /// Represents upload progress.
   /// </summary>
   public class AVUploadProgressEventArgs : EventArgs {
-    public AVUploadProgressEventArgs() { }
 
     /// <summary>
     /// Gets the progress (a number between 0.0 and 1.0) of an upload.