高分分提问，excel 导出，提示CSS丢失问题
C# codeDataTable ds = GetDataTable(); StringBuilder sbContent = new StringBuilder(); if (ds.Rows.Count > 0) { for (int i = 0; i < ds.Rows.Count; i++) { sbContent.Append("<tr style=\"height:30px\">"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + Convert.ToString(i + 1) + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_NAME"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_SEX"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_SFZ"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_ZZ"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_TEL"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_TEL2"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_SJ"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_RY"].ToString() + "</td>"); sbContent.Append("<td style='text-align:left;vnd.ms-excel.numberformat: @'>" + ds.Rows[i]["LR_BZ"].ToString() + "</td>"); sbContent.Append("</tr>"); } } StringBuilder sbHtml = new StringBuilder(); sbHtml.Append("<table border=\"1\" cellpadding=\"0\" cellspacing=\"0\" > "); sbHtml.Append("<tr>"); sbHtml.Append("<th width=50 >序号</th>"); sbHtml.Append("<th width=100>姓名</th>"); sbHtml.Append("<th width=70 >性别</th>"); sbHtml.Append("<th width=200 >身份证号码</th>"); sbHtml.Append("<th width=200 >家庭住址</th>"); sbHtml.Append("<th width=200 >手机号码</th>"); sbHtml.Append("<th width=200 >固定电话</th>"); sbHtml.Append("<th width=200 >录入时间</th>"); sbHtml.Append("<th width=110 >录入人员</th>"); sbHtml.Append("<th width=200 >备注</th>"); sbHtml.Append("</tr>"); sbHtml.Append(sbContent); sbContent.Append(" </table>"); sbHtml.Append("</table>"); Response.Clear(); Response.ContentType = "application nd.ms-excel"; Response.Charset = "gb2312"; Page.EnableViewState = false; Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode("客户录入名单") + DateTime.Now.ToString("yyyyMMddHHmmss") + ".xls"); Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");//设置输出流为简体中文 Response.Write("<html><head><meta http-equiv=Content-Type content=\"text/html; charset=UTF-8\"><title> </title></head><body><center>"); Response.Write(sbHtml.ToString()); Response.Write("</center></body></html>"); Response.End(); }