说明：  ST_Curve是一个功能非常强大的曲线绘制控件，其主要功能有：  可同时绘制多条曲线  可绘制实时曲线（此时将智能移动曲线已保证新添加的数据可见，功能跟CListCtrl的EnsureVisible函数差不多）
(ST_Curve is a very powerful curve drawing controls, and its main features are:  can also draw multiple curves  Real-time curve can be drawn (in which case the smart move is to ensure that the newly added curve data, the function of the EnsureVisible function with CListCtrl almost))