<table>
<tr>
<td>图片:</td>
<td><input name="img" type="file"></td>
<td>
<input type="button" name="Submit2" value=" + " onClick="add_img(<?=$add_i++?>);">
<input type="button" name="Submit3" value=" - " onClick="add_img();">
</td>
</tr>
</table>
<span id="add_image"></span>
<script>
function add_img()
{
add_image.innerHTML="";
}
</script>我想按“+”增加一行<input name="img" type="file">,一直按“+”一直增加;按“-”就减少一行<input name="img" type="file">,一直按“-”一直减少。怎么做呢?
<tr>
<td>图片:</td>
<td><input name="img" type="file"></td>
<td>
<input type="button" name="Submit2" value=" + " onClick="add_img(<?=$add_i++?>);">
<input type="button" name="Submit3" value=" - " onClick="add_img();">
</td>
</tr>
</table>
<span id="add_image"></span>
<script>
function add_img()
{
add_image.innerHTML="";
}
</script>我想按“+”增加一行<input name="img" type="file">,一直按“+”一直增加;按“-”就减少一行<input name="img" type="file">,一直按“-”一直减少。怎么做呢?
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head><body><form name="postform" method="post" action="" enctype="multipart/form-data">
<input name="submit" type="button" value="上传文件" onClick="addfile();">
本系统最多上传四张图片,且要控制大小。
<div id="myfile"></div>
</form>
<script language=javascript>
var i=0;
function addfile()
{
i++;
var str='<span id="filediv' + i +'"><br /><input name="userfile[]" type="file" />';
str+='<input name="submit" type="button" value="减少文件" onClick="delfile('+i+');"></a></span>';
document.getElementById('myfile').innerHTML +=str
}
function delfile(id)
{
document.getElementById('filediv' +id + '').innerHTML = '';
}
</script>
</body>
</html>