说明：  FastReport向下合并单元格打印 Fastreport只提供了抑制重复值属性（SuppressRepeated），它不能直接把框线给自动合并，这样虽然隐藏了重复值，但显示上就还是有点不太美观，所以就专门研究出了这样的一个方法。网上虽然也有许多类似的解决方法，不是过于复杂，就是操作起来很麻烦，这是最最简洁通用的一个写法，所以与大家一起分享
(Merge cell print down FastReport provides only the repetition suppression value attributes (SuppressRepeated), it cannot be directly to the frame line to automatically merge, so although hidden duplicate values, but display is still a not too beautiful, so devoted to the study of the such a method. Online although there are many similar solutions, not too complex, that is, the operation very troublesome, it is the most concise and general of a writing, so with everybody to share )