Results 1 issues of deal.py

折线图好像会显示在最顶层,会把下面的tabbar给遮住。调整tabbar或者canvas的z轴都没有用。。。或者说只有canvas可以放到下面去,而图表本身会浮在最顶上~ ![微信图片_20191126113540](https://user-images.githubusercontent.com/28110224/69597419-e5f1c580-1040-11ea-9324-224b8e4d8044.jpg)