我想擁有多個捕獲組,這些捕獲組可以是可選的,我想訪問它們對應的字符串。 東西看起來/是這樣工作的: let text1 = "something with foo and bar"
let text2 = "something with just bar"
let regex = NSRegularExpression(pattern: "(foo)? (bar)")
for (first
什麼是Java做的絃樂以下替換的最佳方式: 我的文字,看起來與此類似: one two [[**my_word** other words]] three four [[**my_other_word** other words]] five six
,我想以下文本 one two **my_word** three four **my_other_word** five six
我試過使