CanvasContext.setStrokeStyle

解釋：設置邊框顏色。

方法參數

Color color

示例 

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圖片示例

代碼示例

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

Page({
    onLoad() {
        const canvasContext = this.createCanvasContext('myCanvas');
        canvasContext.setStrokeStyle('blue');
        canvasContext.strokeRect(30, 30, 150, 75);
        canvasContext.draw();
    }
});