console
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<style>
select {
width: 170px;
height: 240px;
font-size: 18px;
background-color: #a4ff34;
}
</style>
<script>
$(function () {
$("button").eq(0).click(function(){
$("#sel2").append($("#sel1 option"));
});
$("button").eq(1).click(function(){
$("#sel1").append($("#sel2 option"));
});
$("button").eq(2).click(function(){
$("#sel2").append($("#sel1 option:selected"));
});
$("button").eq(3).click(function(){
$("#sel1").append($("#sel2 option:selected"));
});
})
</script>
</head>
<body>
<select id="sel1" size="10" multiple>
<option value="0">香蕉</option>
<option value="1">苹果</option>
<option value="2">鸭梨</option>
<option value="3">葡萄</option>
<option value="4">葡萄1</option>
<option value="5">葡萄2</option>
<option value="6">葡萄3</option>
<option value="7">葡萄4</option>
</select>
<button>>>></button>
<button><<<</button>
<button>></button>
<button><</button>
<select id="sel2" size="10" multiple>
</select>
</body>
</html>