無法理解re.findall模式語法

Question

今天我碰到這行代碼：

re.findall(r"#[^:]+:([^#]+)", str) 

我什麼模式findall功能正在尋找非常困惑。具體而言，r"#[^:]+:([^#]+)"是什麼意思？

我是一名高中生，所以如果你能用簡單的話來解釋它，那就太棒了！

Answer 1

它的意思是：

 
# => matches the character # literally (case sensitive) 

[^:] => Match a single character that is not : 

+ => Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy) and is applied to the [^:] 

: => matches the character : literally (case sensitive) 

([^#]+) => Capturing Group 

    [^#] => Match a single character not present in this list (match anything other than #) 

    + => Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy) and is applied to [^#] 

並注意r字面意思是所要引用的字符串是raw文本，這意味着它裏面什麼沒有任何特殊含義的編譯器和你不必須逃避任何字符，甚至雙引號！