5.1 List Number Style
We want to change the reference numbering system from [12] to 12.
This can be done in the preamble by putting the following code:
\makeatletter % Reference list option change
\renewcommand\@biblabel[1]{#1.} % from [1] to 1.
\makeatother %
把上面这段复制到bst档案里面存盘
在compile tex档就可以成功囉