CanvasContext.setLineDashOffset

解釋：設置虛線偏移量的屬性。

方法參數(shù)

Number valuevalue 參數(shù)說明：偏移量，初始值為 0 。

示例 

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圖片示例

代碼示例

<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();
    }
});