js 运动的应用 新浪微博 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<style>
    ul{margin:10px auto;padding:0;width:300px;height:400px;border:1px solid black;}
    li{list-style:none; border-bottom:dashed;filter:alpha(opacity=0);opacity:0;height:0;overflow:hidden;}
    
</style>
<script src='perfectStartMove.js'></script>
<script>
    window.onload = function(){
        var oText = document.getElementById('text1');
        var oInput = document.getElementsByTagName('input')[0];
        var oUl =document.getElementsByTagName('ul')[0];
        
        oInput.onclick = function(){
            var cLi = document.createElement('li');
             cLi.innerHTML = oText.value;
             if(oUl.children[0]){
                 oUl.insertBefore(cLi,oUl.children[0]);
             }else{
                 oUl.appendChild(cLi);
             }
             oText.value = '';
             cLi.style.height = 'auto';
             var heightTmp = cLi.offsetHeight;
             cLi.style.height = 0;
             perfectStartMove(cLi,{height:heightTmp},function(){
                 perfectStartMove(cLi,{opacity:100})
             });
        };
    };
</script>
</head>

<body>
<textarea id='text1' rows='10' cols='40'></textarea><br / >
<input type='button' value="发送"/>
<ul>
</ul>
</body>
</html>

 

posted on 2018-05-09 09:59  朝颜陌  阅读(129)  评论(0)    收藏  举报

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