Question

我有一个文本框。文本框值为：

我的名字是$ John $ $ Developer $

我想做什么？我想只挑选和存储 $___$ 符号之间的单词。

我尝试使用value.Contain("")，但我必须写完整的单词。

Answer 1

您可以使用value.Split('$')。结果数组中的每个第二个条目都是＆＃39; $＆＃39;。

之间的子字符串

Answer 2

您可以使用正则表达式执行此操作：

using System.Text.RegularExpressions;

string sentence = "My Name is $John$ The $Developer$"; //or TextBox1.Text;
//split sentence into words and store them in a collection
var allWords = Regex.Split(sentence, @"\s+").Where(s => s != string.Empty);
//collection to store $words$
var wordsInDollarSigns = new List<string>();

//loop through all words in allWords
foreach(string word in allWords)
{
    //if a word matches your requirement, add it in wordsInDollarSigns
    if (Regex.IsMatch(word, @"\$(.+?)\$"))
    {
        wordsInDollarSigns.Add(word);
        //to remove $ from the words use the following instead
        wordsInDollarSigns.Add(word.Replace("$", string.Empty));
    }
}

//wordsInDollarSigns now contains the matches

更新：根据您未在匹配的字词集合中存储"$"字符的新要求，请参阅更新后的代码。

Answer 3

'' Textbox Values in the Variable
valuefromTextbox = txtString.Text.ToString()

''Split the value and by Space and save it into Array.
Dim arrayofvaluefromTextboxSplitted As String() = valuefromTextbox.Split(" ")
'' Now I want to get those words from a string which are surrounded by $Anyword$...
For Each word As String In arrayofvaluefromTextboxSplitted

Dim arrayforSplittedSecondIndex As String() = Nothing
    '' Store the word which is surrounded by $ sign
    If Regex.IsMatch(word, "\$(.+?)\$") Then
        '' This will split by $ sign and will take the 2nd(which is 1) index value of arrayselect. I want word without $$ sign
        arrayforSplittedSecondIndex = word.Split("$")
        word = arrayforSplittedSecondIndex(1).ToString()
        '' Store the value in a variable
        selectValueInlbl = word.Trim.ToString()
        lblcheckSelect.Text += word & "<br/>"
        arrayforSplittedSecondIndex = Nothing
    End If
Next

检查字符串是否有$ any_thing_between_dollarSigns $或@ any_thing_between＆＃39; @＆＃39;在@.net中签名@如何操作

3 个答案: