js代码://attAchments是一个table的ID<script language="javascript">function AddAttachments(){
document.getElementById('attach').innerText = "继续添加附件"; tb = document.getElementById('attAchments'); newRow = tb.insertRow(); newRow.insertCell().innerHTML = "<input name='File' size='50' type='file'> <input type=button value='删除' οnclick='delFile(this.parentElement.parentElement.rowIndex)'>";}function delFile(index){ document.getElementById('attAchments').deleteRow(index); tb.rows.length > 0?document.getElementById('attach').innerText = "继续添加附件":document.getElementById('attach').innerText = "继续添加附件";} </script>页面:<form id="form1" runat="server" enctype="multipart/form-data">C#方法// public void UploadFile(HttpRequest Request, System.Web.UI.Page ThisPage) { for (int i = 0; i < Request.Files.Count; i++) { if (Request.Files[i].FileName != "")//Add images to WorkGuideFile file { string RandomString = Convert.ToString(Guid.NewGuid()); string TrueName = Path.GetFileName(Request.Files[i].FileName); int j = TrueName.LastIndexOf("."); string ExtendName = TrueName.Substring(j); string RandomName = RandomString + ExtendName; string filepath = ThisPage.Server.MapPath("~/DownloadFiles/article/" + RandomName); Request.Files[i].SaveAs(filepath); ArticleDataAccess.Article_ArticleAccessoriesAdd(TrueName, RandomName); } } }