autojs ui模式下画方框

"ui";

deviceHeight = device.height;
deviceWidth = device.width;
console.log(deviceHeight);
console.log(deviceWidth);

//ui布局为一块画布
ui.layout(
    <vertical>
        <canvas id="board"
        h = "800"
         w = "800"/>
    </vertical>
);

ui.board.on("draw",function(canvas){
    let paint = new Paint();
    // 设置画笔为填充，则绘制出来的图形都是实心的
    // paint.setStyle(Paint.STYLE.FILL);
    // 设置画笔颜色为红色
    paint.setColor(colors.RED);
    // 绘制一个从坐标(0, 0)到坐标(100, 100)的正方形
    canvas.drawRect(0, 0, 100, 100, paint);
});


console.log("sdf");