//取html中全部 select 的 name Regex reg_name = new Regex(@"(?<=<select name=\"").*?(?=\"")"); //取html中全部<select>项的值 Regex reg_select = new Regex("(?is)<select name=*.*?>]*.*?</select>"); //取html中一个 select name 等于"Status"的值 Regex status = new Regex(@"(?is)<select name=\""status\"">]*.*?</select>");

string strDoc = （你的html）; //取html中一个下拉菜单 select name 等于"Status"的中值 Regex status = new Regex(@"(?is)<select name=\""status\"">]*.*?</select>"); MatchCollection mc_status = status.Matches(strDoc); getSelectOptions(mc_status, cmbStatus); /// <summary> /// 取select对列表复制 /// </summary> /// <param name="selected"></param> /// <param name="cmb"></param> void getSelectOptions(MatchCollection selected, ComboBox cmb) {     if (selected.Count < 1)         return;     txtValues.Text = "";     txtValues.Text = selected[0].Value.Replace("</option>", Environment.NewLine);     string tmpTxt = "";     foreach (string s in txtValues.Lines)     {         if (s == "")             continue;         string a = "";         a = s.Replace("\"", "").Replace("<option value=\"", "");         int x = a.LastIndexOf(">");         tmpTxt += a.Substring(x + 1) + Environment.NewLine;     }     txtValues.Text = tmpTxt.Trim();     cmb.Items.Clear();     cmb.Items.AddRange(txtValues.Lines);     cmb.SelectedIndex = 0;     cmb.Size = cmb.PreferredSize; }