canvasContext.drawImage 图片缩放尺寸问题

明明如月 2017-09-08 4783 浏览问题模块： Bug反馈

原声的方法附带多个参数后面带有缩放比例可小程序的canvasContext.drawImage方法写死了图像保持原始属性这就导致了画出来canvas只能显示左上角一点点完全达不到预期效果

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canvasContext.drawImage 图片缩放尺寸问题