利用cb开发工具，通过串口接收数据，和cb中的PerformanceGraph控件，绘制滑动平均曲线macd。

Cb中没有直接提供串口控件，需要通过Import ActiveX control来增加cb中没有的串口控件。可以使用操作系统Windows\system32目录下自带的mscomm32.ocx。

通过http://www.google.com/codesearch 搜索 PerformanceGraph1，可以得到该控件在cb中的用法。

对于串口控件也一样。

如果还有问题，可email：bcd5678@sina.com-The use of development tools cb, through the serial port to receive data, and cb in the PerformanceGraph control, drawing moving average curve macd. Cb does not directly provide serial control, needs to Import ActiveX control to increase the serial port control is not cb. You can use the operating system Windows \ system32 directory that comes with mscomm32.ocx. By http://www.google.com/codesearch search PerformanceGraph1, you can get the control in the cb in the usage. For serial control is the same. If there is problem, email: bcd5678@sina.com