js-7-15

//页面跳转

<h1>第一页</h1>
<a href="page2.html">跳转第二页</a>
<input id="btn" type="button" value="前进"/>
<script type="text/javascript">
    var btn = document.getElementById("btn");
    btn.onclick = function() {
        window.history.go(-1);
    }
</script>

//相对移动,针对IE
//    window.moveBy(100,100);
//    window.moveTo(100, 100);
//    window.resizeBy(300, 300);
//    window.resizeTo(300, 300);

//浏览器离左边屏幕和上边屏幕的距离
//    alert(window.screenLeft);
//    alert(window.screenTop);
//    alert(document.body.offsetWidth);
//    alert(document.body.offsetHeight);
//    alert(window.screenX);
//    alert(window.screenY);

//计时

var btn = document.getElementById("btn");
        var btn2 = document.getElementById("btn2");
        var txt = document.getElementById("txt1");
        var r;
        btn.onclick = function() {
            function test() {
                var day = new Date();
                txt.value = day;
                r = window.setTimeout(test, 1000);
            }
            test();
        };

btn2.onclick = function () {
            window.clearTimeout(r);
        };

//锚点操作

<a name="a" href="#">锚点1</a>
    <a name="a" href="#">锚点2</a>
    <a href="#">锚点3</a>
    <div></div>
    <script type="text/javascript">
        alert(document.anchors[0].innerHTML);
    </script>
    <a href="#a">回到顶部</a>