update docs

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/arkui-ts/ts-components-canvas-canvas.md

@@ -80,7 +80,7 @@ In addition to  [universal events](ts-universal-events-click.md), the following
 @Entry
 @Component
 struct CanvasExample {
-  private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+  private settings: RenderingContextSettings = new RenderingContextSettings(true)
   private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
 
   build() {

en/application-dev/reference/arkui-ts/ts-components-canvas-canvasgradient.md

@@ -57,7 +57,7 @@ Adds a color stop for the  **CanvasGradient**  object based on the specified off
     @Entry
     @Component
     struct Page45 {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private gra:CanvasGradient = new CanvasGradient()
     
@@ -69,9 +69,9 @@ Adds a color stop for the  **CanvasGradient**  object based on the specified off
             .backgroundColor('#ffff00')
             .onReady(() =>{
               var grad = this.context.createLinearGradient(50,0, 300,100)
-              this.gra.addColorStop(0.0, 'red')
-              this.gra.addColorStop(0.5, 'white')
-              this.gra.addColorStop(1.0, 'green')
+              gra.addColorStop(0.0, 'red')
+              gra.addColorStop(0.5, 'white')
+              gra.addColorStop(1.0, 'green')
               this.context.fillStyle = grad
               this.context.fillRect(0, 0, 500, 500)
             })
@@ -84,4 +84,3 @@ Adds a color stop for the  **CanvasGradient**  object based on the specified off
 
     ![](figures/en-us_image_0000001192915130.png)
 
-

en/application-dev/reference/arkui-ts/ts-components-canvas-imagebitmap.md

@@ -85,7 +85,7 @@ Example
 @Entry
 @Component
 struct DrawImageExample {
-  private settings:RenderingContextSettings = new RenderingContextSettings(true,true)
+  private settings:RenderingContextSettings = new RenderingContextSettings(true)
   private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
   private img:ImageBitmap = new ImageBitmap("common/images/example.jpg")
 

en/application-dev/reference/arkui-ts/ts-components-canvas-path2d.md

@@ -46,7 +46,7 @@ Adds a path to this path.
     @Entry
     @Component
     struct AddPath {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
     
       private path2Da: Path2D = new Path2D("M250 150 L150 350 L350 350 Z")
@@ -84,7 +84,7 @@ Moves the current point of the path back to the start point of the path, and dra
     @Entry
     @Component
     struct ClosePath {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -163,7 +163,7 @@ Moves the current coordinate point of the path to the target point, without draw
     @Entry
     @Component
     struct MoveTo {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -242,7 +242,7 @@ Draws a straight line from the current point to the target point.
     @Entry
     @Component
     struct LineTo {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -367,7 +367,7 @@ Draws a cubic bezier curve on the canvas.
     @Entry
     @Component
     struct BezierCurveTo {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -465,7 +465,7 @@ Draws a quadratic curve on the canvas.
     @Entry
     @Component
     struct QuadraticCurveTo {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -586,7 +586,7 @@ Draws an arc on the canvas.
     @Entry
     @Component
     struct Arc {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -694,7 +694,7 @@ Draws an arc based on the radius and points on the arc.
     @Entry
     @Component
     struct ArcTo {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -835,8 +835,8 @@ Draws an ellipse in the specified rectangular region.
     ```
     @Entry
     @Component
-    struct Ellipse {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+    struct CanvasExample {
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -933,8 +933,8 @@ Creates a rectangle.
     ```
     @Entry
     @Component
-    struct Rect {
-      private settings: RenderingContextSettings = new RenderingContextSettings(true,true)
+    struct CanvasExample {
+      private settings: RenderingContextSettings = new RenderingContextSettings(true)
       private context: CanvasRenderingContext2D = new CanvasRenderingContext2D(this.settings)
       private path2Db: Path2D = new Path2D()
     
@@ -956,4 +956,3 @@ Creates a rectangle.
 
     ![](figures/en-us_image_0000001192755174.png)
 
-