Removes a directory dir and all subdirectories — careful!

移除名为dir的目录及其所有子目录——请小心使用！

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The Dir class lists all of the files in the current working directory.

用Dir类列出当前工作目录的所有文件。

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Install the portlet WAR file to Jetspeed by copying the WAR file to the directory install dir>/webapps/jetspeed/WEB-INF/deploy.

把 portlet WAR 文件安装到 Jetspeed 的方法是把 WAR 文件拷贝到 install dir>/webapps/jetspeed/WEB-INF/deploy 目录。

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