diff --git a/客户端/齐越慧眼/齐越慧眼/ApiHelper.cs b/客户端/齐越慧眼/齐越慧眼/ApiHelper.cs
index 1c3b3a3..3dc7f9d 100644
--- a/客户端/齐越慧眼/齐越慧眼/ApiHelper.cs
+++ b/客户端/齐越慧眼/齐越慧眼/ApiHelper.cs
@@ -19,8 +19,6 @@ namespace 齐越慧眼
         public static string JwtToken { 
             get
             {
-                return
-                    "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VySWQiOiIxMzk1NzAwMDEzMTg2NjgyODgwIiwidGVhbUlkIjoiMTQxMDk1NTYwNDYxMjA5MTkwNCIsImV4cCI6MTY2ODQ5NzMzNX0.E8sbTNiG71Wy9rCg1ppAxO6IWnCFTiW3BRNGELT8r2E";
                 if (string.IsNullOrEmpty(jwtToken))
                 {
                     jwtToken = GetMemoryToken().Replace("\r\n","");
diff --git a/客户端/齐越慧眼/齐越慧眼/LoginWindow.xaml.cs b/客户端/齐越慧眼/齐越慧眼/LoginWindow.xaml.cs
index ef9223d..2ee0c1a 100644
--- a/客户端/齐越慧眼/齐越慧眼/LoginWindow.xaml.cs
+++ b/客户端/齐越慧眼/齐越慧眼/LoginWindow.xaml.cs
@@ -25,7 +25,7 @@ namespace 齐越慧眼
 
             LoginWindowViewModel.Main.Window = this;
         }
-
+ 
         private void PasswordBox_PasswordChanged(object sender, RoutedEventArgs e)
         {
             LoginWindowViewModel.Main.UserPwd = (sender as HandyControl.Controls.PasswordBox).Password;
diff --git a/客户端/齐越慧眼/齐越慧眼/UserControls/ItemControl.xaml.cs b/客户端/齐越慧眼/齐越慧眼/UserControls/ItemControl.xaml.cs
index 6eb82c9..d72fb3c 100644
--- a/客户端/齐越慧眼/齐越慧眼/UserControls/ItemControl.xaml.cs
+++ b/客户端/齐越慧眼/齐越慧眼/UserControls/ItemControl.xaml.cs
@@ -100,10 +100,18 @@ namespace 齐越慧眼.UserControls
         {
             using (WebClient client = new WebClient())
             {
-               byte[] arr= client.DownloadData(url.Replace("_.webp",""));
-                arr = GetSmallImgArr(arr);
-                BrowerTabPanelControl.Main.OpenSomePicItem(Convert.ToBase64String(arr));
-                return String.Empty;
+                try
+                {
+                    byte[] arr = client.DownloadData(url.Replace("_.webp", ""));
+                    arr = GetSmallImgArr(arr);
+                    BrowerTabPanelControl.Main.OpenSomePicItem(Convert.ToBase64String(arr));
+                    return String.Empty;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message);
+                    return String.Empty;
+                }
             }
         }
 
diff --git a/客户端/齐越慧眼/齐越慧眼/齐越慧眼.csproj b/客户端/齐越慧眼/齐越慧眼/齐越慧眼.csproj
index 7f45f38..9a1639b 100644
--- a/客户端/齐越慧眼/齐越慧眼/齐越慧眼.csproj
+++ b/客户端/齐越慧眼/齐越慧眼/齐越慧眼.csproj
@@ -66,7 +66,7 @@
     <PackageReference Include="HandyControl" Version="3.2.0" />
     <PackageReference Include="MvvmLightLibsStd10" Version="5.4.1.1" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-    <PackageReference Include="System.Drawing.Common" Version="6.0.0" />
+    <PackageReference Include="System.Drawing.Common" Version="4.5.0" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="4.7.0" />
   </ItemGroup>