用qt paint 事件绘画的仪表ui， 可以同时提供的接口setvalue 来设置仪表指针指向数值-Use qt paint painting meter event ui, you can provide an interface to set setvalue meter pointer to value

基于qt编写的dini03水位测量仪驱动，有对外开放接口，可以读取dini03上的数据文件-QT based on the preparation of the dini03 water level meter driver, open interface, you can read the data file on dini03