动态数据显示类，平时写程序时经常需要示波器显示数据。但是好的控件不是免费的。由于程序的需要，我写了一个类用于数据显示。现在我把类公开，大家相互学习。-Dynamic data type, usually when you write a program often need the oscilloscope display the data. But the good control is not free. Because the program needs, I wrote a class