编程时文件上传

下面为效果显示

脚本说明:
把如下代码加入<body>区域中
<style type="text/css">

</style>
<form name="form1" method="post" action="upfile.asp" enctype="multipart/form-data" >
 
  <input type="hidden" name="act" value="upload">
  <br>
  <table width="71%" border="1" cellspacing="0" cellpadding="5" align="center" bordercolordark="#CCCCCC" bordercolorlight="#000000">
    
    <tr align="left" valign="middle" bgcolor="#eeeeee"> 
      <td bgcolor="#eeeeee" height="92"> 
        <script language="javascript">
	  function setid()
	  {
	  str='<br>';
	  if(!window.form1.upcount.value)
	   window.form1.upcount.value=1;
 	  for(i=1;i<=window.form1.upcount.value;i++)
	     str+='文件'+i+':<input type="file" name="file'+i+'" style="width:400" class="tx1"><br><br>';
	  window.upid.innerHTML=str+'<br>';
	  }
	  </script>
        <li> 需要上传的个数 
          <input type="text" name="upcount" class="tx" value="1">
          <input type="button" name="Button" class="bt" onclick="setid();" value="· 设定 ·">
        </li>
        <br>
        <br>
        <li>上传到: 
          <input type="text" name="filepath" class="tx" style="width:350" value="">
        </li>
      </td>
    </tr>
    <tr align="center" valign="middle"> 
      <td align="left" id="upid" height="122"> 文件1: 
        <input type="file" name="file1" style="width:400" class="tx1" value="">
      </td>
    </tr>
    <tr align="center" valign="middle" bgcolor="#eeeeee"> 
      <td bgcolor="#eeeeee" height="24"> 
        <input type="submit" name="Submit" value="· 提交 ·" class="bt">
        <input type="reset" name="Submit2" value="· 重执 ·" class="bt">
      </td>
    </tr>
  </table>
</form>
<script language="javascript">

setid();
</script>