介紹一篇相關文章給你參考:
http://quyi.net/cgi-bin/czread.pl?file=9&User=&Pass=&board=wenyi&group=3&read=messages/2002/08/101673.html
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http://quyi.net/cgi-bin/czread.pl?file=9&User=&Pass=&board=wenyi&group=3&read=messages/2002/08/101673.html
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