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R语言使用fs包的file_access函数、file_exists函数、dir_exists函数、link_exists函数分别查看文件是否可以访问、文件是否存在、目录是否存在、超链接是否存在
2022-06-21 15:32:00 【Data+Science+Insight】
R语言使用fs包的file_access函数、file_exists函数、dir_exists函数、link_exists函数分别查看文件是否可以访问、文件是否存在、目录是否存在、超链接是否存在
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