C＃正則表達式在分隔符之間取代

Question

我想用另一個集合替換標籤11 =和〜之間的所有字符。例11 = 1234〜應由11 = 56789〜代替。第一限定必須以字爲界，意義，111 =不應該成爲比賽

Answer 1

那麼你已經回答了你的問題：

resultString = Regex.Replace(subjectString, @"(?<=\b11=).*?(?=~)", "56789"); 

這是.NET，你可以把它翻譯成其他口味/引擎。

說明：

@" 
(?<=  # Assert that the regex below can be matched, with the match ending at this position (positive lookbehind) 
    \b  # Assert position at a word boundary 
    11=  # Match the characters 「11=」 literally 
) 
.   # Match any single character that is not a line break character 
    *?  # Between zero and unlimited times, as few times as possible, expanding as needed (lazy) 
(?=  # Assert that the regex below can be matched, starting at this position (positive lookahead) 
    ~   # Match the character 「~」 literally 
) 
"