<!DOCTYPE html>
<html>
<head>
<meta charset=
"UTF-8"
>
<title></title>
<!--
步骤分析
1. 确定事件: 点击事件 :onclick事件
2. 事件要触发函数 selectOne
3. selectOne要做一些操作
(将左边选中的元素移动到右边的select中)
1. 获取左边Select中被选中的元素
2. 将选中的元素添加到右边的Select中就可以
-->
<script>
function
selectOne(){
var
leftSelect = document.getElementById(
"leftSelect"
);
var
options = leftSelect.options;
var
rightSelect = document.getElementById(
"rightSelect"
);
for
(
var
i=0; i < options.length; i++){
var
option1 = options[i];
if
(option1.selected){
rightSelect.appendChild(option1);
}
}
}
function
selectAll(){
var
leftSelect = document.getElementById(
"leftSelect"
);
var
options = leftSelect.options;
var
rightSelect = document.getElementById(
"rightSelect"
);
for
(
var
i=options.length - 1; i >=0; i--){
var
option1 = options[i];
rightSelect.appendChild(option1);
}
}
</script>
</head>
<body>
<table border=
"1px"
width=
"400px"
>
<tr>
<td>分类名称</td>
<td><input type=
"text"
value=
"手机数码"
/></td>
</tr>
<tr>
<td>分类描述</td>
<td><input type=
"text"
value=
"这里面都是手机数码"
/></td>
</tr>
<tr>
<td>分类商品</td>
<td>
<!--左边-->
<div style=
"float: left;"
>
已有商品<br />
<select multiple=
"multiple"
id=
"leftSelect"
ondblclick=
"selectOne()"
>
<option>华为</option>
<option>小米</option>
<option>锤子</option>
<option>oppo</option>
</select>
<br />
<a href=
"#"
onclick=
"selectOne()"
> >> </a> <br />
<a href=
"#"
onclick=
"selectAll()"
> >>> </a>
</div>
<!--右边-->
<div style=
"float: right;"
>
未有商品<br />
<select multiple=
"multiple"
id=
"rightSelect"
>
<option>苹果6</option>
<option>肾7</option>
<option>诺基亚</option>
<option>波导</option>
</select>
<br />
<a href=
"#"
> << </a> <br />
<a href=
"#"
> <<< </a>
</div>
</td>
</tr>
<tr>
<td colspan=
"2"
>
<input type=
"submit"
value=
"提交"
/>
</td>
</tr>
</table>
</body>
</html>