thx, CAB!
It's a good way to realize autoloading. But it is still not the one I want.
Actually, I am wishing to create a "setup.lsp", which could do every thing for me automatically, including adding the folder that "setup.lsp" exists to the support path, appending a line-"(load "*.lsp")" into the acad.mnl, copying some fonts from the "setup" folder to the CAD's fonts folder, copying some "*.ctb" files from the "setup" folder to the CAD's folder,ect. Just by dragging the "setup.lsp" into the CAD once, then everything is done.
I just want to save some time when I am using a new computer. Maybe that's not good and hard to realize.