pop3获取邮件内容，仅仅获取内容

Question

通过第三方组件获取163邮箱里的邮件。邮件内容：
<DIV>
<DIV>测试<img src="cib:f3kk344j4k2l2"></DIV>花花</DIV>因为要获取一些关键字，所以要获取到邮件的内容（不包含html标签的内容）；用什么样的方法能非常高效的只获取到内容（比如测试这两个字）；    xml我已经排除了，因为有些标签<img src="cib:f3kk344j4k2l2">这样不符合xml的要求。

Answer 1

哎，等了半天。自己实现了。！
string keywords = string.Empty;
                                StringBuilder sbtemp = new StringBuilder(content.Length);
                                char ctemp = '>';
                                DataTable dt = Common.GetEntryData(string.Empty, "KeyWords").Tables[0];
                                foreach (char c in content)
                                {
                                    if (c == '<')
                                    {
                                        ctemp = '<';
                                        string s = System.Web.HttpUtility.HtmlDecode(sbtemp.ToString());
                                        for(int f=0;f<dt.Copy().Rows.Count;f++)
                                        {
                                            if (s.IndexOf(dt.Rows[f]["FullName"].ToString()) > -1)
                                            {
                                                keywords += dt.Rows[f]["FullName"].ToString() + ",";
                                                dt.Rows.RemoveAt(f);
                                            }
                                        }
                                        sbtemp.Clear();
                                    }
                                    else if (c == '>')
                                    { ctemp = '>'; }
                                    if (ctemp == '>')
                                    {
                                        sbtemp.Append(c);
                                    }
                                }
                                row["KeyWord"] = keywords;

Answer 2

       string tempStr = @"
<DIV>
<DIV>测试<img src=""cib:f3kk344j4k2l2""></DIV>花花</DIV>
 
";
                tempStr = Regex.Replace(tempStr,@"\s*<[^>]*>\s*","");//测试花花