如何將正則表達式匹配轉換爲整數？ （返回「輸入字符串的格式不正確」）

Question

我在將正則表達式匹配（基本上是一個字符串）轉換爲整數時遇到問題。

Match results = Regex.Match(websr.ReadToEnd(), 
          "\\d+\\S+\\d+ results", RegexOptions.Singleline); 
var count = Regex.Match(results.ToString(), "\\d+\\S+\\d+"); 

這兩行是正則表達式。我想提取結果的數量。 「count」顯示正確的結果數量。在下一步我想將其轉換爲整數類型

我試過{int countN = int.parse(count.ToString())}或{Int32.TryParse(count,out countN)}和許多其他情況，但返回"Input string was not in a correct format"或在列表框中顯示0。

我真的很困惑this.i嘗試了很多技巧，但沒有成功。 感謝幫助:)

編輯： 這裏是代碼：

using System; 
using System.Collections.Generic; 
using System.ComponentModel; 
using System.Data; 
using System.Drawing; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using System.Windows.Forms; 
using System.Web; 
using System.Net; 
using System.Text.RegularExpressions; 
using System.IO; 

namespace bing 
{ 
    public partial class Form1 : Form 
    { 
     public Form1() 
     { 
      InitializeComponent(); 
     } 

     private void button1_Click(object sender, EventArgs e) 
     { 
      CookieCollection cookies = new CookieCollection(); 

      HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.bing.com/"); 
      request.CookieContainer = new CookieContainer(); 
      request.CookieContainer.Add(cookies); 
      HttpWebResponse response = (HttpWebResponse)request.GetResponse(); 
      StreamReader response1 = new StreamReader(response.GetResponseStream()); 
      cookies = response.Cookies; 

      try 
      { 
       string web = "http://www.bing.com"; 
       //post 
       string getUrl = (web + "https://stackoverflow.com/search?q=" + textBox1.Text); 


       HttpWebRequest webreq = (HttpWebRequest)WebRequest.Create(getUrl); 
       HttpWebResponse webrep = (HttpWebResponse)webreq.GetResponse(); 
       StreamReader websr = new StreamReader(webrep.GetResponseStream()); 
       Match results = Regex.Match(websr.ReadToEnd(), "\\d+\\S+\\d+ results", RegexOptions.Singleline); 
       var count = Regex.Match(results.ToString(), "\\d+\\S+\\d+"); 
       int countN = int.Parse(count.Value); 



       listBox1.Items.Add(countN.ToString()); 
      } 

      catch (Exception ex) 
      { 
       MessageBox.Show("Error: " + ex.Message); 
      } 
     } 


    } 
} 

Answer 1

你應該使用：

var count = int.Parse(Regex.Match(results.ToString(), "\\d+\\S+\\d+").Value); 

驗證，只有在輸入串號。

Answer 2

解決了 當我提取結果編號時，它是類似123,456,789和問題是數字之間的「，」。

Match results = Regex.Match(websr.ReadToEnd(), "\\d+\\S+\\d+ results", RegexOptions.Singleline); 
Match count = Regex.Match(results.ToString(), "\\d+\\S+\\d+"); 

string countN = count.Value.Replace(",", ""); 
int countM = int.Parse(countN); 

和COUNT分鐘顯示123456789 感謝誰回答:)