diff --git a/NewLife.Core/Web/Link.cs b/NewLife.Core/Web/Link.cs
index 92c1d3fd5..2e4da0951 100644
--- a/NewLife.Core/Web/Link.cs
+++ b/NewLife.Core/Web/Link.cs
@@ -28,13 +28,16 @@ public class Link
     /// <summary>时间</summary>
     public DateTime Time { get; set; }
 
+    /// <summary>哈希</summary>
+    public String? Hash { get; set; }
+
     /// <summary>原始Html</summary>
     public String? Html { get; set; }
     #endregion
 
     #region 方法
-    static readonly Regex _regA = new("<a(?<其它1>[^>]*) href=?\"(?<链接>[^>\"]*)?\"(?<其它2>[^>]*)>(?<名称>[^<]*)</a>", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
-    static readonly Regex _regTitle = new("title=(\"?)(?<标题>[^ \']*?)\\1", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
+    static readonly Regex _regA = new("""<a[^>]* href=?"(?<链接>[^>"]*)?"[^>]*>(?<名称>[^<]*)</a>\s*</td>[^>]*<td[^>]*>(?<哈希>[^<]*)</td>""", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
+    static readonly Regex _regTitle = new("""title=("?)(?<标题>[^ ']*?)\1""", RegexOptions.IgnoreCase | RegexOptions.Singleline | RegexOptions.Compiled);
 
     /// <summary>分析HTML中的链接</summary>
     /// <param name="html">Html文本</param>
@@ -58,8 +61,10 @@ public static Link[] Parse(String html, String? baseUrl = null, Func<Link, Boole
             {
                 Html = match.Value,
                 FullName = match.Groups["名称"].Value.Trim(),
-                Url = match.Groups["链接"].Value.Trim()
+                Url = match.Groups["链接"].Value.Trim(),
+                Hash = match.Groups["哈希"].Value.Trim(),
             };
+            if (link.Hash.Contains("&lt;")) link.Hash = null;
             link.RawUrl = link.Url;
             link.Name = link.FullName;
 
@@ -100,9 +105,15 @@ public static Link[] Parse(String html, String? baseUrl = null, Func<Link, Boole
             // 分割版本，_v1.0.0.0
             link.ParseVersion();
 
-            // 去掉后缀
-            var p = link.Name.LastIndexOf('.');
-            if (p > 0) link.Name = link.Name[..p];
+            // 去掉后缀，特殊处理.tar.gz双后缀
+            var name = link.Name;
+            if (name.EndsWithIgnoreCase(".tar.gz"))
+                link.Name = name[..^7];
+            else
+            {
+                var p = name.LastIndexOf('.');
+                if (p > 0) link.Name = name[..p];
+            }
 
             list.Add(link);
         }
@@ -156,9 +167,15 @@ private static Link[] ParseFTP(String html, String? baseUrl, Func<Link, Boolean>
             idx = link.ParseVersion();
             if (idx > 0) link.Title = link.Title[..idx];
 
-            // 去掉后缀
-            var p = link.Name.LastIndexOf('.');
-            if (p > 0) link.Name = link.Name[..p];
+            // 去掉后缀，特殊处理.tar.gz双后缀
+            var name = link.Name;
+            if (name.EndsWithIgnoreCase(".tar.gz"))
+                link.Name = name[..^7];
+            else
+            {
+                var p = name.LastIndexOf('.');
+                if (p > 0) link.Name = name[..p];
+            }
 
             list.Add(link);
         }
@@ -178,9 +195,15 @@ public Link Parse(String file)
         ParseTime();
         ParseVersion();
 
-        // 去掉后缀
-        var p = Name.LastIndexOf('.');
-        if (p > 0) Name = Name[..p];
+        // 去掉后缀，特殊处理.tar.gz双后缀
+        var name = Name;
+        if (name.EndsWithIgnoreCase(".tar.gz"))
+            Name = name[..^7];
+        else
+        {
+            var p = name.LastIndexOf('.');
+            if (p > 0) Name = name[..p];
+        }
 
         // 时间
         if (Time.Year < 2000)
diff --git a/NewLife.Core/Web/WebClientX.cs b/NewLife.Core/Web/WebClientX.cs
index 918391e45..d81cb4f63 100644
--- a/NewLife.Core/Web/WebClientX.cs
+++ b/NewLife.Core/Web/WebClientX.cs
@@ -1,6 +1,7 @@
 using System.Diagnostics;
 using System.Net;
 using System.Net.Http;
+using System.Security.Cryptography;
 using NewLife.Http;
 using NewLife.Log;
 
@@ -216,13 +217,33 @@ public String DownloadLink(String urls, String name, String destdir)
         // 已经提前检查过，这里几乎不可能有文件存在
         if (File.Exists(file2))
         {
-            // 如果连接名所表示的文件存在，并且带有时间，那么就智能是它啦
+            // 如果连接名所表示的文件存在，并且带有时间，那么就只能是它啦
             var p = linkName.LastIndexOf("_");
             if (p > 0 && (p + 8 + 1 == linkName.Length || p + 14 + 1 == linkName.Length))
             {
-                Log.Info("分析得到文件 {0}，目标文件已存在，无需下载 {1}", linkName, link.Url);
+                Log.Info("分析得到文件：{0}，目标文件已存在，无需下载：{1}", linkName, link.Url);
                 return file2;
             }
+            // 校验哈希是否一致
+            if (!link.Hash.IsNullOrEmpty() && link.Hash.Length == 32)
+            {
+                var hash = file2.AsFile().MD5().ToHex();
+                if (link.Hash.EqualIgnoreCase(hash))
+                {
+                    Log.Info("分析得到文件：{0}，目标文件已存在，且MD5哈希一致", linkName, link.Url);
+                    return file2;
+                }
+            }
+            if (!link.Hash.IsNullOrEmpty() && link.Hash.Length == 128)
+            {
+                using var fs = file2.AsFile().OpenRead();
+                var hash = SHA512.Create().ComputeHash(fs).ToHex();
+                if (link.Hash.EqualIgnoreCase(hash))
+                {
+                    Log.Info("分析得到文件：{0}，目标文件已存在，且SHA512哈希一致", linkName, link.Url);
+                    return file2;
+                }
+            }
         }
 
         Log.Info("分析得到文件 {0}，准备下载 {1}，保存到 {2}", linkName, link.Url, file2);
@@ -230,7 +251,7 @@ public String DownloadLink(String urls, String name, String destdir)
         file2 = file2.EnsureDirectory();
 
         var sw = Stopwatch.StartNew();
-        Task.Run(() => DownloadFileAsync(link.Url, file2)).Wait();
+        Task.Run(() => DownloadFileAsync(link.Url, file2)).Wait(Timeout);
         sw.Stop();
 
         if (File.Exists(file2))
diff --git a/Test/Program.cs b/Test/Program.cs
index ae77e2c50..aaa6cd7a2 100644
--- a/Test/Program.cs
+++ b/Test/Program.cs
@@ -100,7 +100,9 @@ private static void Test1()
     {
         var client = new WebClientX { Log = XTrace.Log };
         //var rs = client.DownloadLink("http://sh03.newlifex.com,http://x.newlifex.com", "ip.gz", "tt/");
-        var rs = client.DownloadLink("http://sh03.newlifex.com,http://x.newlifex.com", "leaf.png", "tt/");
+        //var rs = client.DownloadLink("http://sh03.newlifex.com,http://x.newlifex.com", "leaf", "tt/");
+        var rs = client.DownloadLink("http://sh03.newlifex.com,https://x.newlifex.com/dotNet/8.0.7", "dotnet-runtime-8.0.7-linux-x64", "tt/");
+        XTrace.WriteLine(rs);
     }
 
     private static void Test2()