我正在尝试使用 Html Agility Pack 突出显示 html 字符串中的文本。我可以用 “此文本将突出显示”，则结果为“此文本将突出显示” 和 span 标记之前的空格消失了。这会将跨度之前和之后的单词与跨度文本合并。我只是做一个这样的递归循环：
- 获取第一个子节点
- 如果节点是
#text，则
- ，如果节点有
node.InnerHtml = InnerText.Replace(search_term, span_code)子节点转到步骤 1
- 转到下一个兄弟节点，然后转到步骤 1
然后我得到 HtmlDocument 的 InnerHtml 作为结果。我尝试在 之前和 HtmlDocument.OptionWriteEmptyNodes = true; 它也不起作用。在创建 HtmlDocument 之前和获取 html 字符串之后，我用空格替换了所有 "\n" 和 "\t" 字符，但它没有都不影响。
使用 Html Agility Pack 时如何保留空白？
I'm trying to highlight a text in the html string by using Html Agility Pack. I'm able to replace text with <span class="highlight">, but when I replace the text, the white space around the span tag is disappeared. For example, if the text is "This text will be highlighted", it results as "This text will be<span class='highlighted'>highlighted</span>", and white space gone before the span tag. This merges the words before and after the span with the span text. I simply do a recursive loop like that:
- Get first child node
- if the node is
#text, than node.InnerHtml = InnerText.Replace(search_term, span_code)
- if node has child node goto step 1
- goto next sibling then go to step 1
Then I get the InnerHtml of the HtmlDocument as a result. I tried put space before <span and after </span>, but it removed them. I tried HtmlDocument.OptionWriteEmptyNodes = true; it didn't work either. I replaced all "\n" and "\t" chars with a space before creating HtmlDocument and after getting the html string, and it didn't affect neither.
How can I preserve the white space when using Html Agility Pack?
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实际上
HtmlDocument.OptionWriteEmptyNodes = true;做了我想要的。我现在意识到了。Actually
HtmlDocument.OptionWriteEmptyNodes = true;did what I want. I realized now.