标题说明了一切，我正在尝试根据物体所在的Angular向前移动物体。这是我的相关代码:xView=this.x-this.width/2;yView=this.y-this.height/2;playerCtx.drawImage(imgSprite,0,0,this.width,this.height,xView,yView,this.width,this.height);playerCtx.save();playerCtx.clearRect(0,0,game.width,game.height);playerCtx.translate(xView,yView);playerCtx