then here's the problem
6. use :LUTags,  input "testa",  what I expected is a
"g:/test/testA.js" listed below, but there's only a "testA
.vimfiles.test\project_tree.exproject" listed.
7. there're two way to make it work correctly
    1)     input "testA."  (there's a "." behind)
    2)     when the "testA  .vimfiles.test\project_tree.exproject" is
shown,  drag and resize it use mouse, see the picture:
http://i1021.photobucket.com/albums/af333/aj3423/vim.png
I've looked into the doc for lookupfile, it says the
g:LookupFile_TagExpr is key configuration, and I tried ":let
g:LookupFile_TagExpr" ,  it displays:
g:LookupFile_TagExpr    "./.vimfiles.test/filenametags"
how can I fix it..
Thanks.