正则表达式:C#在双引号内提取文本

Question

我想只提取双引号中的那些单词.所以,如果内容是:

"您"是否愿意回复通过电子邮件发送给您的"问题"？

答案必须是

1. 您
2. 问题

Answer 1

试试这个regex:

\"[^\"]*\"

要么

\".*?\"

解释:

[^ character_group ]

否定:匹配不在character_group中的任何单个字符.

*?

匹配前一个元素零次或多次,但尽可能少.

和示例代码:

foreach(Match match in Regex.Matches(inputString, "\"([^\"]*)\""))
    Console.WriteLine(match.ToString());

//or in LINQ
var result = from Match match in Regex.Matches(line, "\"([^\"]*)\"") 
             select match.ToString();

Answer 2

基于@Ria的回答:

static void Main(string[] args)
{
    string str = "Would \"you\" like to have responses to your \"questions\" sent to you via email?";
    var reg = new Regex("\".*?\"");
    var matches = reg.Matches(str);
    foreach (var item in matches)
    {
        Console.WriteLine(item.ToString());
    }
}

输出是:

"you"
"questions"

如果不需要,可以使用string.TrimStart()和string.TrimEnd()来删除双引号.

Answer 3

我喜欢正则表达式解决方案.你也可以想到这样的事情

string str = "Would \"you\" like to have responses to your \"questions\" sent to you via email?";
var stringArray = str.Split('"');

然后odd从数组中获取元素.如果你使用linq,你可以这样做:

var stringArray = str.Split('"').Where((item, index) => index % 2 != 0);

Answer 4

这也从 @Ria 窃取了正则表达式，但允许您将它们放入数组中，然后在其中删除引号：

strText = "Would \"you\" like to have responses to your \"questions\" sent to you via email?";
MatchCollection mc = Regex.Matches(strText, "\"([^\"]*)\"");
for (int z=0; z < mc.Count; z++)
{
    Response.Write(mc[z].ToString().Replace("\"", ""));
}

Answer 5

尝试这个(\"\w+\")+

我建议你下载Expresso

http://www.ultrapico.com/Expresso.htm