柱状图和曲线图叠加，如何两纵轴的刻度，横轴的刻度的校正，如何调色让图片更美观。内附测试数据。-Histogram graph superimposed, how two longitudinal axis of the scale, the scale of the horizontal axis correction, how palette to make the picture more beautiful. Enclosing the test data.

《嵌入式Qt开发项目教程》配套源代码，因为该书较新发行在2014.12月，所以电子版和源代码资源较难找到，我是直接买了这本书的。源代码包含电子相册，GPS定位，GPRS短信，温湿度实时数据曲线图。- Embedded Qt development project tutorial complementary source code, because the book is a newer release in 2014.12 months, so the electronic version