CanvasContext.setLineWidth

解释:设置线条的宽度。

# 方法参数

Number lineWidth

lineWidth参数说明 :线条的宽度(单位是 px)

# 示例

扫码体验
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# 图片示例

图片

# 代码示例

    <canvas canvas-id="myCanvas" class="myCanvas" />
    
    Page({
        onLoad() {
            const canvasContext = swan.createCanvasContext('myCanvas');
            canvasContext.beginPath();
            canvasContext.moveTo(30, 10);
            canvasContext.lineTo(200, 10);
            canvasContext.stroke();
    
            canvasContext.beginPath();
            canvasContext.setLineWidth(5);
            canvasContext.moveTo(50, 30);
            canvasContext.lineTo(200, 30);
            canvasContext.stroke();
    
            canvasContext.beginPath();
            canvasContext.setLineWidth(10);
            canvasContext.moveTo(70, 50);
            canvasContext.lineTo(200, 50);
            canvasContext.stroke();
    
            canvasContext.beginPath();
            canvasContext.setLineWidth(15);
            canvasContext.moveTo(90, 70);
            canvasContext.lineTo(200, 70);
            canvasContext.stroke();
    
            canvasContext.draw();
        }
    });