利用PB读写xml文件。很方便的小程序，用PB方便快捷的对xml进行读写。-The use of PB to read and write xml file. Very convenient little program, with the PB convenient to read and write to the xml.

解析xml文件的PBL 很好用，包含mle控件，还有datawindow-PBL parsing xml file is useful, including mle controls, as well datawindow