这个题目好像不太明确哦。 是打印hash 的指呢？还是仅仅打印一个'error'的字符串啊？ *^-^* -------------- next part -------------- An HTML attachment was scrubbed... URL: http://mail.pm.org/pipermail/china-pm/attachments/20060523/12e0eeb3/attachment.html