我开始喜欢word arrays,但今天我面临一个挑战:
> a = %w[ faq contact 'about us' legal 'bug reports' ]
=> ["faq", "contact", "'about", "us'", "legal", "'bug", "reports'"]
> a = %w[ faq contact "about us" legal 'bug reports' ]
=> ["faq", "contact", "\"about", "us\"", "legal", "'bug", "reports'"]
我怎样才能有空白元素?