代码:
<!DOCTYPE HTML>
<html>
<head>
    <meta charset="utf-8">
    <title>无标题文档</title>
    <style>
        div {
            width: 200px;
            height: 200px;
            margin: 20px;
            float: left;
            background: yellow;
        }
    </style>
    <script>
        window.onload = function () {
            var oDiv1 = document.getElementById("div1");
            oDiv1.onmouseover = function () {
                startMove(this, 400);
            }
            oDiv1.onmouseout = function () {
                startMove(this, 200);
            };
            function startMove(obj, iTarger) {
                clearInterval(obj.timer);
                obj.timer = setInterval(function () {
                    var speed = (iTarger - obj.offsetHeight) / 6;//此处切记结果不要写反
                    speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
                    if (obj.offsetHeight == iTarger) {
                        clearInterval(obj.timer);//此处需注意!
                    } else {
                        obj.style.height = obj.offsetHeight + speed + "px";
                    }
                }, 30);
            }
            var oDiv2 = document.getElementById("div2");
            oDiv2.onmouseover = function () {
                startMove_1(this, 400);
            }
            oDiv2.onmouseout = function () {
                startMove_1(this, 200);
            };
            function startMove_1(obj, iTarger) {
                clearInterval(obj.timer);
                obj.timer = setInterval(function () {
                    var speed = (iTarger - obj.offsetWidth) / 4;
                    speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
                    if (obj.offsetWidth == iTarger) {
                        clearInterval(obj.timer);
                    } else {
                        obj.style.width = obj.offsetWidth + speed + "px";
                    }
                }, 30);
            }
        }
    </script>
</head>
<body>
<div id="div1">变高</div>
<div id="div2">变宽</div>
</body>
</html>
运行结果:
初始界面:
    
鼠标滑动之后界面:
  鼠标滑动左边:                                         鼠标滑动右边:        
    
    Me discréditer résister, peut supporter beaucoup de compliments!
 
                    
                     
                    
                 
                    
                 
 
                
            
         
         浙公网安备 33010602011771号
浙公网安备 33010602011771号