Regex替换目录以只获取数组中的文件名

Question

我有一个包含几个路径的数组。我想在数组中只存储文件名。

arr = ["/This/is/MyFirst/Path/file1","/This/is/MySecond/Path/file2","/This/is/MyThird/Path/file3"]

我试图删除所有除了文件名与gsub，但我不知道为什么我使用的正则表达式不工作，因为当我运行下面的代码时，没有删除任何东西。

arr.each {|f| puts f.gsub( //(.+)*/, '')}

这是我的测试:

irb(main):172:0* arr = ["/This/is/MyFirst/Path/file1","/This/is/MySecond/Path/file2","/This/is/MyThird/Path/file3"]
=> ["/This/is/MyFirst/Path/file1", "/This/is/MySecond/Path/file2", "/This/is/MyThird/Path/file3"]
irb(main):173:0> arr.each {|f| puts f.gsub( //(.+)*/, '')}
/This/is/MyFirst/Path/file1
/This/is/MySecond/Path/file2
/This/is/MyThird/Path/file3
=> ["/This/is/MyFirst/Path/file1", "/This/is/MySecond/Path/file2", "/This/is/MyThird/Path/file3"]
irb(main):174:0>

提前感谢您的帮助。

Answer 1

为什么不呢?

arr.map { |file_path| File.basename(file_path) }

Answer 2

不应该转义括号。否则，它们将被视为字符。试试下面的

arr.each {|f| puts f.gsub( //(.+)*/, '')}