在页面源中查找自定义textin [英] Find custom textin pagesource

问题描述

我是初学者

请帮我创建一个应用程序，使用C＃.NET阅读网页源代码并在页面中查找自定义文本源和创建文本文件。 />
谢谢。

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C＃2010或2013



我曾尝试过：



搜索很多问题。

Hi,I Am Beginner
Please help me to create an application that Read web page source code by using C#.NET And Find Custom text in the page Source And Create a text file.
Thanks.
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C# 2010 or 2013

What I have tried:

very much search on many questions.

推荐答案

这个可以通过多种方式完成，这是其中之一

创建一个Windows应用程序并添加 webbrowser [ ^ ]控制它。

加载网址并从DOM中查询元素以读取文本和将其写入文本文件 [ ^ ]



简单示例：它会将您的名称保存到文本文件中，方法是将此问题URL传递给它。

This can be done in many ways, this is one of them
Create a windows application and add webbrowser[^] control to it.
Load the url and query the element from the DOM to read the text and write it into a text file[^]

Simple example: it will save your name to the text file, by passing this question url to it.

using System;
using System.IO;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{

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

        private void Form1_Load(object sender, EventArgs e)
        {
            string url = "http://www.codeproject.com/Questions/1121032/Find-custom-textin-pagesource";
            WebBrowser web = new WebBrowser();
            web.Url = new Uri(url);
            web.DocumentCompleted += web_DocumentCompleted;
        }

        void web_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
            WebBrowser web = (sender as WebBrowser);
            string name = web.Document.GetElementById("ctl00_ctl00_MC_AMC_QuestionAuthorRepInfo_MemberName").InnerText;
            MessageBox.Show(name);

            string path = @"D\yourFile.txt";
            if (!File.Exists(path))
                using (StreamWriter sw = File.CreateText(path))
                    sw.WriteLine(name);
        }
    }
}

这篇关于在页面源中查找自定义textin的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！