Canvas 属性 number width number height 方法 RenderingContext Canvas.getContext(string contextType) Image Canvas.createImage() number Canvas.requestAnimationFrame(function callback...
canvas — Create a new empty image resource Description Parameters width height bgcolor (optional) Return Values Examples See also canvas — Create a new empty image reso...
Canvas Create workpads Start with a blank workpad Create workpads from templates Import existing workpads Use sample data workpads Add elements Create elements Add existing v...