🐛 优化代码

Util/ImageUtil.cs

@@ -203,6 +203,9 @@ namespace GeekDesk.Util
         {
 
             try
+            {
+                FileInfo file = new FileInfo(filePath);
+                if (file.Exists && file.Length > 0)
                 {
                     Image img = Image.FromFile(filePath);
                     if (img.Width <= tWidth && img.Height <= tHeight)
@@ -247,6 +250,10 @@ namespace GeekDesk.Util
                         File.Delete(tempPath);
                         return bm;
                     }
+                } else
+                {
+                    return Base64ToBitmapImage(Constants.DEFAULT_IMG_IMAGE_BASE64);
+                }
             }
             catch (Exception e)
             {
@@ -364,6 +371,9 @@ namespace GeekDesk.Util
         public static bool IsImage(string path)
         {
             try
+            {
+                string ext = Path.GetExtension(path);
+                if (!string.IsNullOrEmpty(ext))
                 {
                     string strExt = Path.GetExtension(path).Substring(1);
                     string suffixs = "bmp,jpg,png,tif,gif,pcx,tga,exif,fpx,svg,psd,cdr,pcd,dxf,ufo,eps,ai,raw,WMF,webp,avif";
@@ -375,6 +385,7 @@ namespace GeekDesk.Util
                             return true;
                         }
                     }
+                }
                 return false;
             }
             catch (Exception)