diff --git a/Assets/Scripts/UI/UIVideo.cs b/Assets/Scripts/UI/UIVideo.cs
index 0c617ca8..c8ee9f71 100644
--- a/Assets/Scripts/UI/UIVideo.cs
+++ b/Assets/Scripts/UI/UIVideo.cs
@@ -135,10 +135,13 @@ namespace QFramework.Example
                 VideoContent.rectTransform.sizeDelta = mData.size;
             }
             VideoContent.transform.localPosition = mData.offset;
-
-            player.url = Global.videoPath + mData.url;
-            player.Play();
-            SetImg();
+            string path = Global.videoPath + mData.url;
+            if (string.IsNullOrEmpty(path) == false)
+            {
+                player.url = path;
+                player.Play();
+                SetImg();
+            }
         }
 
         private void VideoPlayer_loopPointReached(UnityEngine.Video.VideoPlayer source)
diff --git a/Assets/Scripts/UILongPicture/UIKnowledge.cs b/Assets/Scripts/UILongPicture/UIKnowledge.cs
index 7d4f1703..ddfd7ef5 100644
--- a/Assets/Scripts/UILongPicture/UIKnowledge.cs
+++ b/Assets/Scripts/UILongPicture/UIKnowledge.cs
@@ -78,7 +78,7 @@ namespace QFramework.Example
                 }
                 else
                 {
-                    label.color = isOn == true ? Color.black : Color.blue;
+                    label.color = isOn == true ? Color.blue : Color.black;
                 }
             });
             if (itemData.subs != null && itemData.subs.Count > 0)
@@ -91,9 +91,6 @@ namespace QFramework.Example
             else
             {
                 toggle.group = LeftContent.GetComponent<ToggleGroup>();
-
-                
-
             }
         }
         /// <summary>