public static int[] GetImagePos(string str)
{
str = str.Replace("$", " ");
str = Regex.Replace(str, @"(?!<img.+?>)<.+?>", "");
str = Regex.Replace(str, @"<img\b[^>]*>", "$");
int startPos = 0;
int foundPos = -1;
int count = 0;
List<int> foundItems = new List<int>(); do
{
foundPos = str.IndexOf("$", startPos);
if (foundPos > -1)
{
startPos = foundPos + 1;
count++;
foundItems.Add(foundPos);
}
} while (foundPos > -1 && startPos < str.Length); return ((int[])foundItems.ToArray());
}
/// <summary>
/// 获取Img的路径
/// </summary>
/// <param name="htmlText">Html字符串文本</param>
/// <returns>以数组形式返回图片路径</returns>
public static string[] GetHtmlImageUrlList(string htmlText)
{
Regex regImg = new Regex(@"<img\b[^<>]*?\bsrc[\s\t\r\n]*=[\s\t\r\n]*[""']?[\s\t\r\n]*(?<imgUrl>[^\s\t\r\n""'<>]*)[^<>]*?/?[\s\t\r\n]*>", RegexOptions.IgnoreCase);
//新建一个matches的MatchCollection对象 保存 匹配对象个数(img标签)
MatchCollection matches = regImg.Matches(htmlText);
int i = 0;
string[] sUrlList = new string[matches.Count];
//遍历所有的img标签对象
foreach (Match match in matches)
{
//获取所有Img的路径src,并保存到数组中
sUrlList[i++] = match.Groups["imgUrl"].Value;
}
return sUrlList;
}