正则表达式匹配模式后的句子中的单词

Question

我想在句子fish egg chicken beef中捕捉群组How much is fish egg chicken beef ?。我试过

how much is ((?>\w+))* \\?

但它只返回fish作为第二组。我在这里做错了什么？

Answer 1

也许正则表达式应该是：

How much is (.*)\?

或者如果你想匹配每个捕获中的所有单词，但只有一个单词：

How much is (?:(\w+)\s*)+\?

Regex regexWords = new Regex(@"How much is (?:(\w+)\s*)+\?");

foreach(Capture word in regexWords.Match(input).Groups[1].Captures)
{
    // word.Value contains one word.
}

祝你好运。