【求助】问一个关于Form的submit()方法的问题，可能比较难

Question

你是指enctype="multipart/form-data"？
这个肯定是写了的

Answer 1

刚才在整理代码，现在贴出来，大家帮我看看吧
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<script language='javascript'>
function upload()
{
    var fileObj = document.getElementById('fileuploader');
    if (fileObj == null)
    {
var filetag = "<input type='file' style='visibility:hidden' name='fileuploader' id='fileuploader' onchange='showattach();'>";
fileObj = document.createElement(filetag);
uploaderDiv.appendChild(fileObj);
    }
    fileObj.click();
    return;
}function showattach()
{
    var fobj = document.getElementById('fileuploader');
    if(fobj != null)
    {
var fullpath = fobj.value;
var ind = fullpath.lastIndexOf("\\");
var filename = fullpath.substring(ind+1, fullpath.length); var fileNameTag = "<span id='filenamelink'>";
var fileOpTag = "<span id='fileoplink' onclick='deleteAttach()' style='color:#68a5ea;cursor:hand'>"; var fileNameObj = document.createElement(fileNameTag);
var fileOpObj = document.createElement(fileOpTag);
var attachArea = document.getElementById('attachinfo');
attachArea.appendChild(fileNameObj);
attachArea.appendChild(fileOpObj); fileOpObj.innerText = " 删除";
fileNameObj.innerText = filename;
return;
    }
}
function deleteAttach()
{
    // delete file uploader
    var oChild = uploaderDiv.children(0);
    uploaderDiv.removeChild(oChild);    // delete upload file info
    oChild = attachinfo.children(0);
    attachinfo.removeChild(oChild);
    oChild = attachinfo.children(0); 
    attachinfo.removeChild(oChild);}
function submitform()
{
    document.forms[0].submit();}
</script><form name='form1' id='form1' action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" enctype="multipart/form-data">
...
<div id="uploaderDiv" style="display:none"></div> // 用来append fileuploader
...
<div id='attachinfo' name='attachinfo'></div> // 用来append已添加附件名
...
<span onclick='upload()' style='text-decoration:underline;cursor:hand'>附件</span> // 添加附件的按钮
...
<input id='btnok' type='button' value='确定' onclick='submitform();'> // 提交按钮
...
</form>
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