PB的数据窗口的例子,有约会,K线图等等,由此可以学习国外高手的编程技巧与经验-PB data window examples are dating, K map, etc., which can learn from foreign experts in the programming skills and experience

pb制作的自由划线工具，可以画曲线，可以导入坐标构成点画线，并可以保存图形(Pb produced free scribing tool, can draw curves, you can import coordinates stipple line and can save graphics)