如何使用(IE )DOM修改网页以添加表单元素和JavaScript？
如何使用(IE )DOM修改网页以添加表单元素和JavaScript？
提问于 2019-04-08 22:32:30
我有第三方应用程序(编译)，可以从HTML页面读取数据。这是通过创建一个Internet Explorer对象并加载一个空页面(.navigate "about:blank")完成的。表单元素通过Document.Body.innerHTML添加到页面。当通过Submit退出HTML页面时，应用程序通过CreateObject("WScript.Shell")读取提交数据。我想添加一些JavaScript来将输入数据组合到一个字符串中。也就是说，输入到输入文本框1和输入文本框2的数据与文本框3连接或/并根据复选框或单选按钮更改文本框3中的值。然后，我可以将这些值发送回应用程序。我怎样才能进一步修改这个空网页，使其包含java脚本来完成上述工作呢？
"g_objIE.Document.Body.innerHTML =“代码运行得很好。它非常基本，只包含表单元素。我可以简单地将java脚本添加到innerHTML中吗？我不这样认为。我尝试添加非常基本的代码，但收到一个“期望语句结束”错误。我试图插入：“
"& _“document.getElementById("demo").innerHTML =5+ 6；”&_
这是正常工作的代码。
' First step, set up the dialog (InternetExplorer)
Set g_objIE = CreateObject("InternetExplorer.Application")
g_objIE.Offline = True
g_objIE.navigate "about:blank"
g_objIE.document.focus()
' Wait for the navigation to the "blank" web page to complete
Do
crt.Sleep 900
Loop While g_objIE.Busy
g_objIE.Document.body.Style.FontFamily = "Sans-Serif"
' Here's where we "create" the elements of our dialog box. We basically
' throw HTML into the document, and IE loads it in real-time for us.
'
' The hidden "ButtonHandler" input is used to tie IE and
' SecureCRT together such that SecureCRT can know when a
' button is pressed, etc.
g_objIE.Document.Body.innerHTML = _
"<input type=radio name='LogMode' value='Append' AccessKey='A' checked>fpeth.3125 / Access" & _
"   " & _
"<input type=radio name='LogMode' value='Overwrite' Accesskey='w' >fpeth.3070 / Core<br>" & _
"<hr>" & _
"<b>Path/File</b> <input name='fName' size='60' maxlength='60' tabindex=1><br>" & _
"<b>HOST</b> <input name='tID' size='30' maxlength='30'><br>" & _
"<hr>" & _
"<button name='Cancel' AccessKey='C' onclick=document.all('ButtonHandler').value='Cancel';><u>C</u>ancel</button>" & _
"<input name='ButtonHandler' type='hidden' value='Nothing Clicked Yet'>"
g_objIE.MenuBar = False
g_objIE.StatusBar = True
g_objIE.AddressBar = False
g_objIE.Toolbar = False
g_objIE.height = 270
g_objIE.width = 510
g_objIE.document.Title = "TCP"
g_objIE.Visible = True回答 1
Stack Overflow用户
发布于 2019-04-11 08:05:46
- 您需要控制文档的HTML头和文档类型，这意味着您需要使用
document.write而不是body.innerHTML。除了使脚本工作外，这还将使您能够控制HTML和doctypes。 - 要使操作更易于维护，请使用变量来保存您的HTML
Dim htmlString
htmlString = _
"<!doctype html>" & _
"<html>" & _
"<head><title>tcp</title></head>" & _
"<body>" & _
"<input type=radio name='LogMode' value='Append' AccessKey='A' checked>fpeth.3125 / Access" & _
"   " & _
"<input type=radio name='LogMode' value='Overwrite' Accesskey='w' >fpeth.3070 / Core<br>" & _
"<hr>" & _
"<b>Path/File</b> <input name='fName' size='60' maxlength='60' tabindex=1><br>" & _
"<b>HOST</b> <input name='tID' size='30' maxlength='30'><br>" & _
"<hr>" & _
"<button name='Cancel' AccessKey='C' onclick=document.all('ButtonHandler').value='Cancel';><u>C</u>ancel</button>" & _
"<input name='ButtonHandler' type='hidden' value='Nothing Clicked Yet'>" & _
"<div id=demo>goes here</div>" & _
"<script> " & _
" document.getElementById('demo').innerHTML = (5 + 6).toString(); " & _
"</script>" & _
"</body>" & _
"</html>"
g_objIE.document.write(htmlString)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/55575824
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