ruby 如何检查文件是否存在
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时间：2020-09-06 04:36:15 来源:igfitidea点击:
How to check for file existence
提问by iwan
Is there a Ruby class/method where I could pass "a full path", home/me/a_file.txt, to identify whether it is a valid file path?
是否有 Ruby 类/方法可以传递“完整路径” home/me/a_file.txt，以识别它是否是有效的文件路径？
采纳答案by Paul Annesley
Check out Pathnameand in particular Pathname#exist?.
查看Pathname尤其是Pathname#exist?.
Fileand its FileTestmodule are perhaps simpler/more direct, but I find Pathnamea nicer interface in general.
回答by zed_0xff
# file? will only return true for files
File.file?(filename)
and
和
# Will also return true for directories - watch out!
File.exist?(filename)
