下面的代码用以将给定的HTML中的所有的URI，包括href和img都更改为绝对路径
private static string ConvertToAbsoluteUrls (string html, Uri relativeLocation) {
IHTMLDocument2 doc = new HTMLDocumentClass (,',',');
doc.write (new object [] { html },',',');
doc.close (,',',');
foreach (IHTMLAnchorElement anchor in doc.links) {
IHTMLElement element = (IHTMLElement)anchor;
string href = (string)element.getAttribute ("href", 2,',',');
if (href != null) {
Uri addr = new Uri (relativeLocation, href,',',');
anchor.href = addr.AbsoluteUri;
}
}
foreach (IHTMLImgElement image in doc.images) {
IHTMLElement element = (IHTMLElement)image;
string src = (string)element.getAttribute ("src", 2,',',');
if (src != null) {
Uri addr = new Uri (relativeLocation, src,',',');
image.src = addr.AbsoluteUri;
}
}
string ret = doc.body.innerHTML;
return ret;
}
