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于 2015-10-05 发布 文件大小:2KB
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  设计一程序,要求用带缓存的流文件I/O操作,在“./tmp”目录下,打开名称为“tmpfile”的文件。如果该文件不存在,则创建此文件;如果存在,将文件清空后关闭。W或w+(design a program, it need to use the cache files to operate the in/out directory)

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