要把下载的这些文件与你的源文件放在一个目录才可以的 dem是范例文档,你可以打开看看下面的应该可以编译:\documentclass {llncs}\begin{document}testing\end{document}这几个文件的说明:(i) ls, Springer class file;(ii) dem, sample input file, you can use it as a source for your own input;(iii) doc (actually a TeX file), the documentation of the class, with detailed instructionson how the macro package works;(iv) dvi, DVI resulting out of