[LayaAirIDE3]drawImage没有显示

  onMouseClick(evt: Laya.Event): void {

         let s1 = this.owner.getChildAt(0) as Laya.Sprite;

         let s2 = this.owner.getChildAt(1) as Laya.Sprite;

         // console.log(s1,s2)

         let canvas = s1.drawToCanvas(

           s1.width ,

           s1.height ,

           s1.x,

           s1.y

         );

         let img = new Laya.Image();

         img.x=0;

         img.y=0;

         img.width = s1.width;

         img.height = s1.height;

         img.skin = canvas.toBase64("image/png", 1);

        //  // console.log(img.skin)

        //  this.owner.addChild(img);

         // let tex=new Laya.Texture();

         let tex = img.drawToTexture(s2.width, s2.height, 0, 0) as Laya.Texture;

        //  let tet=canvas.getTexture() as Laya.Texture;

        //  s2.graphics.fillTexture(tet,0,0,tet.width,tet.height);

         

        //  s2.graphics.drawTexture(tex,0,0,img.width,img.height,undefined,1)



         s2.graphics.drawImage(tex, 0, 0, img.width, img.height);

        //  s2.graphics.drawTexture(tex)

        

   }