如何从本地HTML文件中获取部分文本并将其用作变量？ [英] How to grab a part of text from a local HTML file and use it as variable?

问题描述

我正在使用VB制作一个小型的home应用程序。正如标题所说，我想从本地html文件中获取部分文本并将其用作变量，或者将其放在文本框中。



我尝试了什么：



我尝试过这样的事情......

I am making a small "home" application using VB. As the title says, I want to grab a part of text from a local html file and use it as variable, or put it in a textbox.

What I have tried:

I have tried something like this...

Private Sub Open_Button_Click(sender As Object, e As EventArgs) Handles Open_Button.Click
    Dim openFileDialog As New OpenFileDialog()
    openFileDialog.CheckFileExists = True
    openFileDialog.CheckPathExists = True
    openFileDialog.FileName = ""
    openFileDialog.Filter = "All|*.*"
    openFileDialog.Multiselect = False
    openFileDialog.Title = "Open"

    If openFileDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
        Dim fileReader As String = My.Computer.FileSystem.ReadAllText(openFileDialog1.FileName)
            TextBox.Text = fileReader
    End If
End Sub

结果是加载整个此文本框中的HTML代码。我该怎么做才能获取html文件代码的特定部分？假设我想从这个范围中抓取文字...

The result is to load the whole html code inside this textbox. What should I do so to grab a specific part of html files's code? Let's say I want to grab the word text from this span...

<span id="text">Text</a>

推荐答案

使用类似 Agility Pack [ ^ ]解析html并提取你想要的位。

Use something like the Agility Pack[^] to parse the html and extract the bits you want.

这篇关于如何从本地HTML文件中获取部分文本并将其用作变量？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！