Javascript零散知识点总结

<script type="text/javascript">             
             var time = new Date();
             var datetime = time.toLocaleString();
             alert(datetime);                          
</script>

<div id="test" style="border:1px solid #000;width:50px;height:50px;">这是测试的div</div>

        <script>
            function test(){
                var test = document.getElementById("test"); //获得元素
                var w = test.offsetWidth; //获得原始宽
                alert("div的宽是："+w);
            //    test.style.width = w + ‘px‘; //设置宽度
            }
            test();
        </script>