PBstudy

代码说明：

  PB开发笔记,通过代码更改数据窗口对象的方法、通过modify函数来同时修改多个表、DW支持双击标题进行排序等(PB development notes, change the DataWindow object through code, modify the function to modify more than one table at the same time, DW support Double click the title to sort)