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如何使用正则表达式实现以下结果?如何在括号内获得每个以逗号分隔的标记
"(apple, banana, _orange)" # => ['apple', 'banana', '_orange']
"apple, banana, _orange" # => []
"(apple)" # => ['apple']
"()" # => []
"(apple,sauce)" # => ['apple', 'sauce']
这是我有这么远,但我只能够捕捉到最后一个记号:
\|(?:(?:,\s)?(\w+))*\|