Html 使用GetElementById从特定元素提取文本
我创建了一个查看XML数据文件的VBS脚本文件。 在XML数据文件中，我需要的HTML数据嵌入到Html 使用GetElementById从特定元素提取文本,html,dom,vbscript,Html,Dom,Vbscript,我创建了一个查看XML数据文件的VBS脚本文件。 在XML数据文件中，我需要的HTML数据嵌入到 <![CDATA[]'other interesting HTML data here']. 但是，我正在使用的应用程序表示err438，对象不支持此属性或方法。 我是一个代码新手，能够理解一些基本的基本语法，但是当它变得有点复杂时，我会有点迷路。我已经浏览了这个板块上的其他帖子，它们似乎都是HTML和Javascript，而不是VBScript。我正在使用的应用程序将不允许使用Java脚本
<![CDATA[]'other interesting HTML data here'].
我使用的代码是否错误？要使用getElementById，您应该编写：document.getElementByIdmyId1。通过这种方式，您可以告诉浏览器在“文档”中搜索指定的ID。您的变量未定义，并且没有附加此方法，因此您的代码将生成上述错误 要提取特定H元素内的文本，请执行以下操作： MyIdText=document.getElementByIdmyId1.textContent；
非常感谢您的帮助，不幸的是，我对VBS有一点了解，甚至对DOM知之甚少，我正在尝试通过实验来学习这两者。我正在使用的环境/应用程序（称为ASCE）及其管理安全案例的工具中存在某些限制，但目前这并不重要。 然而，为了比较苹果与苹果，我尝试在HTML页面中进行实验，以便更好地理解DOM/VBS命令的实际功能。我已经取得了一些部分的成功，但仍然不明白为什么会失败。 这是我正在试验的确切文件，我为每个部分添加了注释文本
<html>
<head>
<table border=1>
<tr>
<td>text in cell 1</td>
</tr>
<tr>
<td><h1 id="myId1">my text for H1</h1></td>
</tr>
<tr>
<td><h1 id="myId2">my text for h2</h2></td>
</tr>
</table>
<script type="text/vbscript">
DoStuff
Sub DoStuff
' Section 1: Get a node with the Id value of "myId1" from the above HTML
' and assign it to the variable 'GetValue'
' This works fine :-)
Dim GetValue
GetValue = document.getElementById("myId1").innerHTML
MsgBox "the text=" & GetValue
' Section 2: Create a query that assigs to the variable 'MyH1Tags' to all of the <h1>
' tags in the document.
' I assumed that this would be a 'collection of <h1> tags so I set up a loop to itterate
' through however many there were, but this fails as the browser says that this object
' doesn't support this property or method - This is where I am stuck
Dim MyH1Tags
Dim H1Tag
MyH1Tags = document.getElementsByTagName("h1") ' this works
For Each H1Tag in MyH1Tags ' this is where it falls over
MSgbox "Hello"
Next
' Section 3: Create a new Div element 'NewDiv' and then insert some HTML 'MyHTML'
' into 'NewDiv'. Create a query 'MyHeadings' that extracts all h1 headings from 'NewDiv'
' then loop round for however many h1 headings there are in 'MyHeadings'
' and display the text content. This works Ok
Dim NewDiv
Dim MyHTML
Dim MyHeadings
Dim MyHeading
Set NewDiv = document.createElement("DIV")
MyHTML="<h1 id=""a"">heading1</h1><h2 id=""b"">Heading2</h2>"
NewDiv.innerHTML=MyHTML
Set MyHeadings = NewDiv.getElementsByTagName("h1")
For Each MyHeading in MyHeadings
Msgbox "MyHeading=" & MyHeading.innerHTML
Next
'Section 4: Do a combination of Section 1 (that works) and Section 3 (that works)
' by creating a new Div element 'NewDiv2' and then paste into it some HTML
' 'MyHTML2' and then attempt to create a query that extracts the inner HTML from
' an id attribute with the value of "a". But this doesnt work either.
' I have tried "Set MyId = NewDiv2.getElementById("a").innerHTML" and
' also tried "Set MyId = NewDiv2.getElementById("a")" and it always falls over
' at the same line.
Dim NewDiv2
Dim MyHTML2
Dim MyId
Set NewDiv2 = document.createElement("DIV")
MyHTML2="<h1 id=""a"">heading1</h1><h2 id=""b"">Heading2</h2>"
NewDiv2.innerHTML=MyHTML
MyId = NewDiv2.getElementById("a").innerHTML
End Sub
</script>
</head>
<body>
我已经从XML文件中提取了html，创建了一个元素，并将html插入到元素中。html实际上并不存在于文档中，它存在于MyDiv元素变量中。我能够对MyDiv元素执行GetElementsByTagName操作，但GetElementById操作似乎不起作用。我也在使用VBS而不是JavaScript…我将尝试并完成它
MyIdText = MyDiv.getElementById("myId1")
<html>
<head>
<table border=1>
<tr>
<td>text in cell 1</td>
</tr>
<tr>
<td><h1 id="myId1">my text for H1</h1></td>
</tr>
<tr>
<td><h1 id="myId2">my text for h2</h2></td>
</tr>
</table>
<script type="text/vbscript">
DoStuff
Sub DoStuff
' Section 1: Get a node with the Id value of "myId1" from the above HTML
' and assign it to the variable 'GetValue'
' This works fine :-)
Dim GetValue
GetValue = document.getElementById("myId1").innerHTML
MsgBox "the text=" & GetValue
' Section 2: Create a query that assigs to the variable 'MyH1Tags' to all of the <h1>
' tags in the document.
' I assumed that this would be a 'collection of <h1> tags so I set up a loop to itterate
' through however many there were, but this fails as the browser says that this object
' doesn't support this property or method - This is where I am stuck
Dim MyH1Tags
Dim H1Tag
MyH1Tags = document.getElementsByTagName("h1") ' this works
For Each H1Tag in MyH1Tags ' this is where it falls over
MSgbox "Hello"
Next
' Section 3: Create a new Div element 'NewDiv' and then insert some HTML 'MyHTML'
' into 'NewDiv'. Create a query 'MyHeadings' that extracts all h1 headings from 'NewDiv'
' then loop round for however many h1 headings there are in 'MyHeadings'
' and display the text content. This works Ok
Dim NewDiv
Dim MyHTML
Dim MyHeadings
Dim MyHeading
Set NewDiv = document.createElement("DIV")
MyHTML="<h1 id=""a"">heading1</h1><h2 id=""b"">Heading2</h2>"
NewDiv.innerHTML=MyHTML
Set MyHeadings = NewDiv.getElementsByTagName("h1")
For Each MyHeading in MyHeadings
Msgbox "MyHeading=" & MyHeading.innerHTML
Next
'Section 4: Do a combination of Section 1 (that works) and Section 3 (that works)
' by creating a new Div element 'NewDiv2' and then paste into it some HTML
' 'MyHTML2' and then attempt to create a query that extracts the inner HTML from
' an id attribute with the value of "a". But this doesnt work either.
' I have tried "Set MyId = NewDiv2.getElementById("a").innerHTML" and
' also tried "Set MyId = NewDiv2.getElementById("a")" and it always falls over
' at the same line.
Dim NewDiv2
Dim MyHTML2
Dim MyId
Set NewDiv2 = document.createElement("DIV")
MyHTML2="<h1 id=""a"">heading1</h1><h2 id=""b"">Heading2</h2>"
NewDiv2.innerHTML=MyHTML
MyId = NewDiv2.getElementById("a").innerHTML
End Sub
</script>
</head>
<body>