CanvasContext.setLineDashOffset

解释：设置虚线偏移量的属性。

方法参数

Number valuevalue 参数说明：偏移量，初始值为 0 。

示例 

在开发者工具中打开

图片示例

代码示例

<canvas canvas-id="myCanvas" class="myCanvas" />

Page({
    onLoad() {
        const canvasContext = swan.createCanvasContext('myCanvas');

        canvasContext.beginPath();
        canvasContext.setLineDashOffset(400);
        canvasContext.moveTo(10, 20);
        canvasContext.lineTo(100, 20);
        canvasContext.setLineDash([10, 20], 5);
        canvasContext.moveTo(10, 100);
        canvasContext.lineTo(100, 100);
        canvasContext.closePath();
        canvasContext.stroke();
        canvasContext.draw();
    }
});