sql -tree 递归v2.0
..................\Debug
..................\.....\Project1.#00
..................\.....\Project1.exe
..................\.....\Project1.map
..................\.....\Project1.obj
..................\.....\Project1.pch
..................\.....\Project1.tds
..................\.....\Unit1.obj
..................\Project1.cbproj
..................\Project1.cbproj.local
..................\Project1.cpp
..................\Project1.res
..................\Unit1.cpp
..................\Unit1.dfm
..................\Unit1.h
..................\__history
..................\.........\Unit1.cpp.~1~
..................\.........\Unit1.cpp.~2~
..................\.........\Unit1.cpp.~3~
..................\.........\Unit1.cpp.~4~
..................\.........\Unit1.dfm.~1~