js及jquery实现动态的文件上传操作按钮的添加和删除

发布网友发布时间：2022-04-22 15:07

共1个回答

热心网友时间：2022-04-19 09:26

本文为大家介绍下使用js及jquery实现动态的文件上传操作按钮的添加和删除，具体示例如下，希望对大家有所帮助
javascript实现
代码如下:
<!DOCTYPE
html
PUBLIC
"-//W3C//DTD
XHTML
1.0
Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta
http-equiv="Content-Type"
content="text/html;
charset=utf-8"
/>
<title>jquery文件上传</title>
<script
type="text/javascript"
src="jquery-1.7.2.js"></script>
<script
type="text/javascript">
var
addMore
=
function()
{
var
div
=
document.getElementById("div2");
var
br
=
document.createElement("br");
var
input
=
document.createElement("input");
var
button
=
document.createElement("input");

input.setAttribute("type",
"file");
button.setAttribute("type",
"button");
button.setAttribute("value",
"Remove");

button.onclick
=
function()
{
div.removeChild(br);
div.removeChild(input);
div.removeChild(button);
}

div.appendChild(br);
div.appendChild(input);
div.appendChild(button);
}
//节点的移动
//$(function(){

//});
</script>
</head>

<body>
<div
id="div1">
<input
type="file"
id="upload"/>
<input
type="button"
id="btn"
value="more"
onclick="addMore();"/>
</div>
<div
id="div2"></div>
</body>

</html>

jquery实现
代码如下:
<!DOCTYPE
html
PUBLIC
"-//W3C//DTD
XHTML
1.0
Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta
http-equiv="Content-Type"
content="text/html;
charset=utf-8"
/>
<title>jquery文件上传</title>
<title>jquery1</title>
<script
type="text/javascript"
src="jquery-1.7.2.js"></script>
<script
type="text/javascript">
/**
var
addMore
=
function()
{
var
div
=
document.getElementById("div2");
var
br
=
document.createElement("br");
var
input
=
document.createElement("input");
var
button
=
document.createElement("input");

input.setAttribute("type",
"file");
button.setAttribute("type",
"button");
button.setAttribute("value",
"Remove");

button.onclick
=
function()
{
div.removeChild(br);
div.removeChild(input);
div.removeChild(button);
}

div.appendChild(br);
div.appendChild(input);
div.appendChild(button);
}**/
//jquery实现文件上传的按钮添加和删除
$(function(){
$("input[type=button]").click(function(){
var
br
=
$("<br>");
var
input
=
$("<input
type='file'/>");
var
button
=
$("<input
type='button'
value='Remove'/>");
$("#div1").append(br).append(input).append(button);

button.click(function()
{
br.remove();
input.remove();
button.remove();
});
});
});
</script>
</head>

<body>
<div
id="div1">
<input
type="file"
id="upload"/>
<input
type="button"
id="btn"
value="more"
onclick="addMore();"/>
</div>
<div
id="div2"></div>
</body>
</html>