diff --git a/ArkUI/entry/src/main/ets/entryability/EntryAbilityFullScreenStatus.ets b/ArkUI/entry/src/main/ets/entryability/EntryAbilityFullScreenStatus.ets
index 7ce58b5d497e5671dab8b9d5363eef8d37efc098..3ad811d1f1dc17372e86a894d08905c1b6c3ef69 100644
--- a/ArkUI/entry/src/main/ets/entryability/EntryAbilityFullScreenStatus.ets
+++ b/ArkUI/entry/src/main/ets/entryability/EntryAbilityFullScreenStatus.ets
@@ -27,12 +27,11 @@ export default class EntryAbility extends UIAbility {
   // [Start entry_ability_full_screen_status]
   // EntryAbility.ets
 
-
   onWindowStageCreate(windowStage: window.WindowStage): void {
     // Main window is created, set main page for this ability
     hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
 
-
+    // Handle window content loading error
     windowStage.loadContent('pages/GridImage', (err) => {
       if (err.code) {
         hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
@@ -40,12 +39,11 @@ export default class EntryAbility extends UIAbility {
       }
       hilog.info(0x0000, 'testTag', 'Succeeded in loading the content.');
 
-
-      let windowClass: window.Window = windowStage.getMainWindowSync(); // 获取应用主窗口
-      // 1. 设置窗口全屏
+      let windowClass: window.Window = windowStage.getMainWindowSync(); // Get the main application window
+      // 1. Set the window to fullscreen
       let isLayoutFullScreen = true;
       windowClass.setWindowLayoutFullScreen(isLayoutFullScreen);
-      // 2. 缓存window窗口对象
+      // 2. Cache the window object
       AppStorage.setOrCreate('windowClass', windowClass);
     });
   }
diff --git a/ArkUI/entry/src/main/ets/entryability/EntryAbilityImmersivePages.ets b/ArkUI/entry/src/main/ets/entryability/EntryAbilityImmersivePages.ets
index 95beab0b96fa3e3b6efe157324aefe7705b6fa7b..45410fe272e4141ee39bfc8dc32b973f30fa1392 100644
--- a/ArkUI/entry/src/main/ets/entryability/EntryAbilityImmersivePages.ets
+++ b/ArkUI/entry/src/main/ets/entryability/EntryAbilityImmersivePages.ets
@@ -22,12 +22,15 @@ import { UIAbility } from '@kit.AbilityKit';
 import { window } from '@kit.ArkUI';
 import { BusinessError } from '@kit.BasicServicesKit';
 
-
 export default class EntryAbility extends UIAbility {
   onWindowStageCreate(windowStage: window.WindowStage) {
     // 1.Get the main window of the application.
-    let windowClass: window.Window | undefined = undefined;
     windowStage.getMainWindow().then(windowClass => {
+     if (!windowClass) {
+        console.error('Window is undefined');
+        return;
+      }
+
       console.info('Succeeded in obtaining the main window. Data: ' + JSON.stringify(windowClass));
       // 2.Set the window to full screen to achieve immersive effects.
       windowClass.setWindowLayoutFullScreen(true).then(() => {
diff --git a/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets b/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets
index c017c2aecb88022cced93ca1fb268e00c70cbaff..4bd4529e0dd3b74f141a660803c66f477b971b06 100644
--- a/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets
+++ b/ArkUI/entry/src/main/ets/pages/ComponentAttributeCompatibilityJudgment.ets
@@ -38,7 +38,7 @@ struct ComponentAttributeCompatibilityJudgment {
 class MyListModifier implements AttributeModifier<ListAttribute> {
   applyNormalAttribute(instance: ListAttribute): void {
     // Determine based on the API version information of deviceInfo
-    if (deviceInfo.sdkApiVersion > 14) {
+    if (deviceInfo?.sdkApiVersion > 14) {
       // The property to be adapted is the backToTop attribute of the List component
       // The instance is an attribute object of the List, and its properties can be modified through the instance
       instance.backToTop(true);
diff --git a/ArkUI/entry/src/main/ets/pages/DisappearanceAnimationOffsetFlicker.ets b/ArkUI/entry/src/main/ets/pages/DisappearanceAnimationOffsetFlicker.ets
index 039d4a3527bb25ed280eee46bc4fd821e6d0dcde..4c366bc77c14740369c4e9dfd739a0aae439c2a4 100644
--- a/ArkUI/entry/src/main/ets/pages/DisappearanceAnimationOffsetFlicker.ets
+++ b/ArkUI/entry/src/main/ets/pages/DisappearanceAnimationOffsetFlicker.ets
@@ -37,7 +37,7 @@ struct DisappearanceAnimationOffsetFlicker {
       .width('100%')
       .height('100%')
       .onClick(() => {
-        this.isShow = !this.isShow
+        this.isShow = !this.isShow;
       })
     }
   }
diff --git a/ArkUI/entry/src/main/ets/pages/ImplementImmersivePages.ets b/ArkUI/entry/src/main/ets/pages/ImplementImmersivePages.ets
index be88e0258ec4d0f0bd5a050d9824db85ed472adb..03780175fa8d15b42627b78e135fd596ac26e1d6 100644
--- a/ArkUI/entry/src/main/ets/pages/ImplementImmersivePages.ets
+++ b/ArkUI/entry/src/main/ets/pages/ImplementImmersivePages.ets
@@ -33,7 +33,6 @@ struct Example {
       // Set the top drawing to extend to the status bar
       .expandSafeArea([SafeAreaType.SYSTEM], [SafeAreaEdge.TOP])
 
-
       Row() {
         Text('ROW2')
           .fontSize(40)
@@ -41,7 +40,6 @@ struct Example {
       .backgroundColor(Color.Orange)
       .padding(20)
 
-
       Row() {
         Text('ROW3')
           .fontSize(40)
@@ -49,7 +47,6 @@ struct Example {
       .backgroundColor(Color.Orange)
       .padding(20)
 
-
       Row() {
         Text('ROW4')
           .fontSize(40)
@@ -57,7 +54,6 @@ struct Example {
       .backgroundColor(Color.Orange)
       .padding(20)
 
-
       Row() {
         Text('ROW5')
           .fontSize(40)
@@ -65,7 +61,6 @@ struct Example {
       .backgroundColor(Color.Orange)
       .padding(20)
 
-
       Row() {
         Text('Bottom Row')
           .fontSize(40)
diff --git a/ArkUI/entry/src/main/ets/pages/MockOnclick.ets b/ArkUI/entry/src/main/ets/pages/MockOnclick.ets
index 3a955870ab5334ee1f9a948e6dd7bd908861734f..14f9a6d538f713893127414086b833af03249ee6 100644
--- a/ArkUI/entry/src/main/ets/pages/MockOnclick.ets
+++ b/ArkUI/entry/src/main/ets/pages/MockOnclick.ets
@@ -59,6 +59,7 @@ class MyNodeController extends NodeController {
 
   // Coordinate Conversion Example
   postTouchEvent(event: TouchEvent, uiContext: UIContext): boolean {
+    if (changedTouchLen === 0) return false;
     if (this.rootNode == null) {
       return false;
     }
@@ -70,7 +71,7 @@ class MyNodeController extends NodeController {
     let offsetY: number | null | undefined = node?.getPositionToParent().y;
     let changedTouchLen = event.changedTouches.length;
     for (let i = 0; i < changedTouchLen; i++) {
-      if (offsetX != null && offsetY != null && offsetX != undefined && offsetY != undefined) {
+      if (offsetX != null && offsetY != null) {
         event.changedTouches[i].x = uiContext.vp2px(offsetX + event.changedTouches[i].x);
         event.changedTouches[i].y = uiContext.vp2px(offsetY + event.changedTouches[i].y);
       }
diff --git a/ArkUI/entry/src/main/ets/pages/SetTabsMarginDemo.ets b/ArkUI/entry/src/main/ets/pages/SetTabsMarginDemo.ets
index e494dafef86f36feb8dbc443fb6e61196d5a612f..d9e4b96212fd11d76912d01b3b68f291e501c8fc 100644
--- a/ArkUI/entry/src/main/ets/pages/SetTabsMarginDemo.ets
+++ b/ArkUI/entry/src/main/ets/pages/SetTabsMarginDemo.ets
@@ -25,10 +25,11 @@ struct SetTabsMarginDemo {
   @State currentIndex: number = 0;
 
   @Builder
-  TabBarBuilder(title: string, targetIndex: number) {
-    Column(){
+  tabBarBuilder(title: string, targetIndex: number) {
+    Column() {
       Text(title)
-        .fontWeight(targetIndex === this.currentIndex ? FontWeight.Bold : FontWeight.Normal).margin({ left: 10, right: 10 })
+        .fontWeight(targetIndex === this.currentIndex ? FontWeight.Bold : FontWeight.Normal)
+        .margin({ left: 10, right: 10 })
         .fontColor(targetIndex === this.currentIndex ? Color.Orange : Color.Gray)
         .onClick(() => {
           this.tabsController.changeIndex(targetIndex)
@@ -40,44 +41,44 @@ struct SetTabsMarginDemo {
     Row() {
       Column() {
         Flex({ direction: FlexDirection.Row }) {
-          this.TabBarBuilder('页签1', 0)
-          this.TabBarBuilder('页签2', 1)
-          this.TabBarBuilder('页签3', 2)
+          this.tabBarBuilder('tab1', 0)
+          this.tabBarBuilder('tab2', 1)
+          this.tabBarBuilder('tab3', 2)
         }
 
         Tabs({ barPosition: BarPosition.Start, controller: this.tabsController }) {
           TabContent() {
             Column() {
-              Text("页签1页面")
+              Text("tab1_page")
             }
             .height('100%')
             .width('100%')
             .backgroundColor(Color.Yellow)
           }
           // The place where the margins are correctly set.
-          .margin({left : 10, right :10})
+          .margin({ left: 10, right: 10 })
 
           TabContent() {
             Column() {
-              Text("页签2页面")
+              Text("tab2_page")
             }
             .height('100%')
             .width('100%')
             .backgroundColor(Color.Green)
           }
           // The place where the margins are correctly set.
-          .margin({left : 10, right :10})
+          .margin({ left: 10, right: 10 })
 
           TabContent() {
             Column() {
-              Text("页签3页面")
+              Text("tab3_page")
             }
             .height('100%')
             .width('100%')
             .backgroundColor(Color.Pink)
           }
           // The place where the margins are correctly set.
-          .margin({left : 10, right :10})
+          .margin({ left: 10, right: 10 })
         }
         // The parameter for adjusting the margins should not be added here, as it may affect the user experience.
         // .margin({left : 10, right :10})
@@ -88,4 +89,5 @@ struct SetTabsMarginDemo {
     }
   }
 }
+
 // [End SetTabsMarginDemo]
\ No newline at end of file
diff --git a/ArkUI/entry/src/main/ets/viewmodel/DrawViewModel.ets b/ArkUI/entry/src/main/ets/viewmodel/DrawViewModel.ets
index efa53e526e5641ce0e7d95b1db105db9872759d4..7e329c5e569393a1ba9cc39a2f420d3bdaac3179 100644
--- a/ArkUI/entry/src/main/ets/viewmodel/DrawViewModel.ets
+++ b/ArkUI/entry/src/main/ets/viewmodel/DrawViewModel.ets
@@ -49,7 +49,7 @@ export class DrawViewModel {
   private drawPath = new Path2D();
 
   constructor() {
-    this.pattern = this.context.createPattern(this.drawModel.img, 'repeat');
+    this.pattern = this.context.createPattern(this.drawModel.img, 'repeat') ?? null;
   }
 
   moveStart(x: number, y: number) {
@@ -59,10 +59,12 @@ export class DrawViewModel {
   }
 
   moveUpdate(x: number, y: number) {
-    let lastPoint = this.points[this.points.length - 1];
-    this.points.push({ x: x, y: y });
-    this.drawPath.quadraticCurveTo((x + lastPoint.x) / 2, (y + lastPoint.y) / 2, x, y);
-    this.drawCurrentPathModel();
+    if (this.points.length !== 0) {
+      let lastPoint = this.points[this.points.length - 1];
+      this.points.push({ x: x, y: y });
+      this.drawPath.quadraticCurveTo((x + lastPoint.x) / 2, (y + lastPoint.y) / 2, x, y);
+      this.drawCurrentPathModel();
+    }
   }
 
   moveEnd() {
@@ -95,4 +97,5 @@ export class DrawViewModel {
     this.context.stroke(this.drawPath);
   }
 }
+
 // [End draw_view_model]
\ No newline at end of file
diff --git a/ArkUI/entry/src/main/moduleNavigationJumpToPageWithWhiteScreen.json5 b/ArkUI/entry/src/main/moduleNavigationJumpToPageWithWhiteScreen.json5
index 99abc862d9ea9653f821eb529b6ef80f76dccc06..b453140707798f685b744882827d3b8e84b41fae 100644
--- a/ArkUI/entry/src/main/moduleNavigationJumpToPageWithWhiteScreen.json5
+++ b/ArkUI/entry/src/main/moduleNavigationJumpToPageWithWhiteScreen.json5
@@ -20,7 +20,7 @@
   // [Start json5]
   "module": {
     "name": "feature_splash",
-    "type": "feature",
+    "type": "shared",
     // The type needs to be either "har" or "shared"
     // [End json5]
     "description": "$string:module_desc",