js仿新浪微博消息发布功能
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
<!DOCTYPEhtml>
<html>
<head>
<metacharset="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:1pxsolid;margin:10pxauto;position:relative;overflow:hidden;}
#ul1li{border-bottom:1px#999dashed;padding:4px;list-style:none;filter:alpha(opacity:0);
opacity:0;}
</style>
<scriptsrc="js/chuan.js"></script>
</head>
<body>
<textarearows="5"cols="30"id="txt1"value=""></textarea>
<inputtype="button"id="btn1"value="发布"/>
<divid="div1">
<ulid="ul1"></ul>
</div>
<script>
varoUl=document.getElementById('ul1');
varoTxt1=document.getElementById('txt1');
varoBtn=document.getElementById('btn1');
oBtn.onclick=function()
{
varoLi=document.createElement('li');
oLi.innerHTML=oTxt1.value;
oTxt1.value='';
if(oUl.children.length>0)
{
oUl.insertBefore(oLi,oUl.children[0]);
}
else
{
oUl.appendChild(oLi);
}
variHeight=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：
functiongetstyle(obj,name)
{
if(obj.currentStyle)
{
returnobj.currentStyle;
}
else
{
returngetComputedStyle(obj,false)[name];
}
}
functionmove(obj,json,fnEnd)
{
clearInterval(obj.timer);
obj.timer=setInterval(function()
{
varbBox=true;//假设所有值都已经到了
for(varstrrinjson)
{
if(strr=='opacity')
{
varcur=Math.round(parseFloat(getstyle(obj,strr))*100);
}
else
{
varcur=parseInt(getstyle(obj,strr));
}
varspeed=(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毛票票。