CanvasContext.beginPath

解釋：開始創(chuàng)建一個路徑，需要調(diào)用 fill 或者 stroke 才會使用路徑進(jìn)行填充或描邊。

方法參數(shù)

無

示例 

在開發(fā)者工具中打開

圖片示例

代碼示例

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

Page({
    onLoad() {
        const canvasContext = swan.createCanvasContext('myCanvas');
        canvasContext.beginPath();
        canvasContext.setLineWidth(5);
        canvasContext.setStrokeStyle('blue');
        canvasContext.moveTo(0, 75);
        canvasContext.lineTo(250, 75);
        canvasContext.stroke();

        canvasContext.beginPath();
        canvasContext.setStrokeStyle('red');
        canvasContext.moveTo(50, 0);
        canvasContext.lineTo(150, 130);
        canvasContext.stroke();
        canvasContext.draw();
    }
});