使用类来操作曲线，使用双缓冲还实现曲线不闪，代码如下（VB2005），这是一个类，新建一个类，就可以在整个程序里调用这个类，调用方法很简单：比如：这个类名为tcdj 就可以写dim XXXX as new tcdj，然后在程序里使用XXXX.属性....... 操作就可以了-To operate the use of curves, use double buffering is also the realization of curves do not flash, the code is as follows (VB2005), this is a category, create a new category, you can call the whole process in this class, call the method is simple: For example: the class name for tcdj can write dim XXXX as new tcdj, and then use the procedure XXXX. ....... operation can attribute the