Vbscript “如何重置对象”;数据;?
例如,在字符串变量Vbscript “如何重置对象”;数据;?,vbscript,Vbscript,例如,在字符串变量H和G中,我有html内容: Set oHtmlFile = CreateObject("HtmlFile") oHtmlFile.write H <do some parsing on oHtmlFile object> oHtmlFile.write G ... 设置oHtmlFile=CreateObject(“HtmlFile”) oHtmlFile.H oHtmlFile.G ... 如果我现在执行上述操作,oHTMLFile同时包含H和G内容 在
H
和G
中,我有html内容:
Set oHtmlFile = CreateObject("HtmlFile")
oHtmlFile.write H
<do some parsing on oHtmlFile object>
oHtmlFile.write G
...
设置oHtmlFile=CreateObject(“HtmlFile”)
oHtmlFile.H
oHtmlFile.G
...
如果我现在执行上述操作,oHTMLFile
同时包含H
和G
内容
在写入
G
数据之前,如何重置oHtmlFile
对象,而不创建新对象(CreateObject(“HtmlFile”)
)如果不进一步了解您的实际问题,很难提出好的/实用的建议。理论上,您可以通过使用.inner/outerHTLM和.innerTEXT等属性或调用.create*、.remove*或.append*等函数来操作oHtmlFile的文档树
代码:
Dim oDOM : Set oDOM = CreateObject("HTMLFILE")
Dim sHTML : sHTML = "<html><head></head><body></body></html>"
WScript.Echo "Empty", TypeName(oDOM), "oDOM"
dumpDoc oDOM
oDOM.write sHTML
WScript.Echo "After .write", qq(sHTML)
dumpDoc oDOM
sHTML = "<p>G</p><p>H</p>"
oDOM.childNodes(0).childNodes(1).innerHTML = sHTML
WScript.Echo "After setting body's .innerHTML to", qq(sHTML)
dumpDoc oDOM
sHTML = "pipapo"
oDOM.childNodes(0).childNodes(1).childNodes(1).innerTEXT = sHTML
WScript.Echo "After changing second P's .innerTEXT to", qq(sHTML)
dumpDoc oDOM
oDOM.childNodes(0).childNodes(1).removeChild oDOM.childNodes(0).childNodes(1).childNodes(0)
WScript.Echo "After deleting first P"
dumpDoc oDOM
Dim oNode : Set oNode = oDOM.createElement("h1")
oNode.appendChild oDOM.createTextNode("tritratrulala")
oDOM.childNodes(0).childNodes(1).appendChild oNode
WScript.Echo "After using DOM to append an H1"
dumpDoc oDOM
sHTML = "<span>abracadabra</span>"
oDOM.childNodes(0).childNodes(1).childNodes(0).outerHTML = sHTML
WScript.Echo "After overwriting first P's outerHTML", qq(sHTML)
dumpDoc oDOM
Sub dumpDoc(oDOM)
If oDOM.documentElement Is Nothing Then
WScript.Echo "", "oDOM.documentElement Is Nothing"
WScript.Echo "", "oDOM.childNodes.length", oDOM.childNodes.length
Else
WScript.Echo "", "oDOM.documentElement:", oDOM.documentElement.tagName
WScript.Echo "", "oDOM.childNodes.length", oDOM.childNodes.length
dumpTree oDOM.documentElement, 2
End If
WScript.Echo "-----------------"
End Sub
Sub dumpTree(oNode, nL)
Select Case oNode.nodeType
Case 1
WScript.Echo Space(nL), oNode.nodeType, oNode.tagName, qq(Replace(oNode.innerHTML, vbCrLf, ""))
Dim oChild
For Each oChild In oNode.childNodes
dumpTree oChild, nL + 1
Next
Case 3
WScript.Echo Space(nL), oNode.nodeType, oNode.nodeName, qq(Replace(oNode.nodeValue, vbCrLf, ""))
End Select
End Sub
鼻涕留作练习)好的,谢谢你冗长的回答。我认为可能有重置对象数据的通用方法。移除根节点是一种很好的方法。Cheers@Ekkehard.Horner很抱歉向您强调,vbscript似乎是一种死语言,没有人回答:我这里有一个vbscript问题:如果您能阅读它并提出解决方案,对我会有很大帮助。谢谢乔
demoHtmlFile - demo HtmlFile
===============================================================================
Empty HTMLDocument oDOM
oDOM.documentElement Is Nothing
oDOM.childNodes.length 0
-----------------
After .write "<html><head></head><body></body></html>"
oDOM.documentElement: HTML
oDOM.childNodes.length 1
1 HTML "<HEAD></HEAD><BODY></BODY>"
1 HEAD ""
1 TITLE ""
1 BODY ""
-----------------
After setting body's .innerHTML to "<p>G</p><p>H</p>"
oDOM.documentElement: HTML
oDOM.childNodes.length 1
1 HTML "<HEAD></HEAD><BODY><P>G</P><P>H</P></BODY>"
1 HEAD ""
1 TITLE ""
1 BODY "<P>G</P><P>H</P>"
1 P "G"
3 #text "G"
1 P "H"
3 #text "H"
-----------------
After changing second P's .innerTEXT to "pipapo"
oDOM.documentElement: HTML
oDOM.childNodes.length 1
1 HTML "<HEAD></HEAD><BODY><P>G</P><P>pipapo</P></BODY>"
1 HEAD ""
1 TITLE ""
1 BODY "<P>G</P><P>pipapo</P>"
1 P "G"
3 #text "G"
1 P "pipapo"
3 #text "pipapo"
-----------------
After deleting first P
oDOM.documentElement: HTML
oDOM.childNodes.length 1
1 HTML "<HEAD></HEAD><BODY><P>pipapo</P></BODY>"
1 HEAD ""
1 TITLE ""
1 BODY "<P>pipapo</P>"
1 P "pipapo"
3 #text "pipapo"
-----------------
After using DOM to append an H1
oDOM.documentElement: HTML
oDOM.childNodes.length 1
1 HTML "<HEAD></HEAD><BODY><P>pipapo</P><H1>tritratrulala</H1></BODY>"
1 HEAD ""
1 TITLE ""
1 BODY "<P>pipapo</P><H1>tritratrulala</H1>"
1 P "pipapo"
3 #text "pipapo"
1 H1 "tritratrulala"
3 #text "tritratrulala"
-----------------
After overwriting first P's outerHTML "<span>abracadabra</span>"
oDOM.documentElement: HTML
oDOM.childNodes.length 1
1 HTML "<HEAD></HEAD><BODY><SPAN>abracadabra</SPAN><H1>tritratrulala</H1></BODY>"
1 HEAD ""
1 TITLE ""
1 BODY "<SPAN>abracadabra</SPAN><H1>tritratrulala</H1>"
1 SPAN "abracadabra"
3 #text "abracadabra"
1 H1 "tritratrulala"
3 #text "tritratrulala"
-----------------
oDOM.childNodes(0).childNodes(1).removeChild oDOM.childNodes(0).childNodes(1).childNodes(0)