September 2005 Archives

发现java库的一个错误

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好久以前写的FTP搜索的spider程序,今天拿出来部署,结果运行通不过。分析了一下,是其中的改变目录的cd函数(sun.net.ftp.FtpClient类的)不能正确运行,于是自己开了serv-u,然后逐条分析cd函数的运行过程,执行过程是这样的:

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