https://ruby-china.org/ajfg93 en-us <p>"hello".delete "l","lo" #=&gt; "heo" "hello".delete "lo" #=&gt; "he" "hello".delete "aeiou", "^e" #=&gt; "hell" "hello".delete "ej-m" #=&gt; "ho"</p> <p>Returns a copy of str with all characters in the intersection of its arguments deleted. </p> <p>可以解释一下吗，谢谢，已谷歌。</p> ajfg93 Fri, 27 May 2016 12:51:25 +0800 https://ruby-china.org/topics/30141 https://ruby-china.org/topics/30141