<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>左移右移的实现</title>
<script type="text/javascript" src="jquery/jquery-3.3.1.min.js"></script>
</head>
<script type="text/javascript">
$().ready(function() {
//添加一个
$("#add").click(function() {
$("#second").append($("#first option:selected"));
//$("#second").append($("#first :selected"));
//$("#first :selected").appendTo("#second");
});
//添加全部
$("#add_all").click(function() {
$("#second").append($("option"));
});
//删除一个
$("#remove").click(function() {
$("#first").append($("#second option:selected"));
});
//删除全部
$("#remove_all").click(function() {
$("#first").append($("#second option"));
});
});
</script>
<body>
<div
style="border: 1px dashed #E6E6E6; margin: 150px 0px 0px 450px; 350px; height: 200px; background-color: #E6E6E6;">
<table width="285" height="169" border="0" align="left"
cellpadding="0" cellspacing="0" style="margin: 15px 0px 0px 15px;">
<tr>
<td width="126">
<!--multiple="multiple" 能同时选择多个 size="10" 确定下拉选的长度--> <select
name="first" size="10" multiple="multiple" class="td3" id="first">
<option value="选项1">选项1</option>
<option value="选项2">选项2</option>
<option value="选项3">选项3</option>
<option value="选项4">选项4</option>
<option value="选项5">选项5</option>
<option value="选项6">选项6</option>
<option value="选项7">选项7</option>
<option value="选项8">选项8</option>
</select>
</td>
<td width="69" valign="middle">
<input name="add" id="add" type="button" class="button" value="-->" />
<input name="add_all" id="add_all" type="button" class="button" value="==>" />
<input name="remove" id="remove" type="button" class="button" value="<--" />
<input name="remove_all" id="remove_all" type="button" class="button" value="<==" />
</td>
<td width="127" align="left">
<select name="second" size="10" multiple="multiple" class="td3" id="second">
<option value="选项9">选项9</option>
</select>
</td>
</tr>
</table>
</div>
</body>
</html>原文出处：
xingyuner2, select左移右移的实现, https://blog.csdn.net/xingyuner2/article/details/78408219