本文实例为大家分享了js仿新浪微博消息发布的具体代码，供大家参考，具体内容如下
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>仿新浪微博消息发布功能</title>
<style>
*{margin: 0; padding: 0;}
#div1{width: 400px; height: 400px; border: 1px solid; margin:10px auto; position: relative;overflow: hidden;}
#ul1 li{border-bottom: 1px #999 dashed; padding: 4px; list-style: none;filter: alpha(opacity:0);
opacity: 0;}
</style>
<script src="js/chuan.js"></script>
</head>
<body>
<textarea rows="5" cols="30" id="txt1"value=""></textarea>
<input type="button" id="btn1" value="发布" />
<div id="div1">
<ul id="ul1"></ul>
</div>
<script>
var oUl=document.getElementById('ul1');
var oTxt1=document.getElementById('txt1');
var oBtn=document.getElementById('btn1');
oBtn.onclick=function()
{
var oLi=document.createElement('li');
oLi.innerHTML=oTxt1.value;
oTxt1.value='';
if(oUl.children.length>0)
{
oUl.insertBefore(oLi,oUl.children[0]);
}
else
{
oUl.appendChild(oLi);
}
var iHeight=oLi.offsetHeight;
oLi.style.height=0;
move(oLi,{height:iHeight},function()
{
move(oLi,{opacity:100});
});
}
</script>
</body>
</html>
chuan,js为之前写的完美运动框架：
function getstyle(obj,name)
{
if(obj.currentStyle)
{
return obj.currentStyle;
}
else
{
return getComputedStyle(obj,false)[name];
}
}
function move(obj,json,fnEnd)
{
clearInterval(obj.timer);
obj.timer=setInterval(function()
{
var bBox=true;//假设所有值都已经到了
for(var strr in json)
{
if(strr=='opacity')
{
var cur=Math.round(parseFloat(getstyle(obj,strr))*100);
}
else
{
var cur=parseInt(getstyle(obj,strr));
}
var speed=(json[strr]-cur)/10;
speed=speed>0?Math.ceil(speed):Math.floor(speed);
if(cur!=json[strr])
bBox=false;
if(strr=='opacity')
{
obj.style.filter='alpha(opacity:'+(cur+speed+')');
obj.style.opacity=(cur+speed)/100;
}
else
{
obj.style[strr]=cur+speed+'px';
}
}
if(bBox)
{
clearInterval(obj.timer);
if(fnEnd)fnEnd();
}
},30);
};
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
