这是一款可以以曲线或柱状图的形式实时动态显示数据的控件。 主要特点是：支持显示浮点数、负数，显示数据范围大、可以自定义显示范围也可自动选择范围，还可锁定显示范围。-This a can of a curve or column in the form of real-time dynamic display of data control. The main features are : support shown float, negative, showing the scope of th