作为安全存储的应用，文中分析了“文件保险箱”和“文件安全删除工具”的设计思路，并介绍了其实现方法。

As the application this paper analysed the mentality of designing about the "file safe" and "the tool for file deletion", and introduced their implementation methods.

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档案雨刮器-安全工具让你可以删除任何文件永久没有复苏。

Files Wiper - The Security Tools allow you to delete any files permanently without recovery.

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