JavaScript 中RemoveAll 函数的用法问题

Question

不用这么麻烦 直接 document.all("AwardList").options.length = 0;

Answer 1

貌似有点水...
写个循环的...<div>
<script type="text/javascript">
var selectRemoveAll = function (o) {
    with (o)
        while (options.length)
            removeChild(options[options.length - 1]);
};
window.onload = function () {
    selectRemoveAll(document.getElementById('AwardList'));
};
</script>
<select id="AwardList">
    <option>1</option>
    <option>2</option>
    <option>3</option>
    <option>4</option>
</select>
</div>