feat(qrcode): custom drawing support #580
Merged
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修改QRcode组件的done事件的参数,传入画板的绘制上下文对象以便可以方便地对QRcode组件的二维码进行二次加工,比如绘制提示文字等等。在组件的示例页面增加了新的自定义绘制的例子。