从介于两个字符串之间的字符串中检索字符串

本文关键字：字符串 检索 之间 于两个 | 更新日期: 2023-09-27 17:57:56

我有一个类似的字符串

"Hello i want to go."

我的代码给出"want to go."但我需要" i "和" to "之间的字符串，我怎么能得到这个？我的代码如下。

string[] words = Regex.Split("Hello i want to go.", " i ");
string respons = words[1];

从介于两个字符串之间的字符串中检索字符串

string input = "Hello i want to go.";
Regex regex = new Regex(@".*'s[Ii]{1}'s('w*)'sto's.*");
Match match = regex.Match(input);
string result = string.Empty;
if (match.Success)
{
    result = match.Groups[1].Value;
}

此正则表达式将匹配"i"（不区分大小写）和"to"之间的任何"word"。

编辑：已更改。。。to.*=>to ''s.*，如评论中所建议的。

string input = "Hello I want to go.";
string result = input.Split(" ")[2];

如果你想在"i"后面加单词，那么：

string result = input.Split(" i ")[1].Split(" ")[0];

使用

string s = "Hello i want to go.";
string[] words = s.split(' ');
string response = wor

只需使用一行简单的代码

 var word = "Hello i want to go.".Split(' ')[2];

//返回单词"want"

    string input = "Hello I want to go.";
    string[] sentenceArray = input.Split(' ');
    string required = sentenceArray[2];

这里有一个使用Regex的例子，它为您提供了每次出现"want"的索引：

string str = "Hello i want to go. Hello i want to go. Hello i want to go.";
Match match = Regex.Match(str, "want");
while(match.Success){
    Console.WriteLine(string.Format("Index: {0}", match.Index));
    match = match.NextMatch();
}

这里没有说Regex。。。

string result = input.Split.Skip(2).Take(1).First()

它的工作

public static string Between(this string src, string findfrom, string findto)
{
    int start = src.IndexOf(findfrom);
    int to = src.IndexOf(findto, start + findfrom.Length);
    if (start < 0 || to < 0) return "";
    string s = src.Substring(
                   start + findfrom.Length, 
                   to - start - findfrom.Length);
    return s;
}

它可以称为

string respons = Between("Hello i want to go."," i "," to ");

它返回want

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