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寫了一個好玩的彈性列表效果

add var time cli back undefine all inner eof

閑來沒事,隨遍寫寫,有需要的盡管拿去用。

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <style type="text/css">
            #list{
                width:302px;
                margin:50px auto;
                padding:0;
                list
-style: none; } #list li{ height:40px; font:12px/40px ‘宋體‘; border:1px solid #000; position: relative; cursor: pointer; } #list span{ width:12px; height:12px; line
-height: 12px; } </style> <script> var Tween = { linear: function (t, b, c, d){ //勻速 return c*t/d + b; }, easeIn: function(t, b, c, d){ //加速曲線 return c*(t/=d)*t + b; }, easeOut:
function(t, b, c, d){ //減速曲線 return -c *(t/=d)*(t-2) + b; }, easeBoth: function(t, b, c, d){ //加速減速曲線 if ((t/=d/2) < 1) { return c/2*t*t + b; } return -c/2 * ((--t)*(t-2) - 1) + b; }, easeInStrong: function(t, b, c, d){ //加加速曲線 return c*(t/=d)*t*t*t + b; }, easeOutStrong: function(t, b, c, d){ //減減速曲線 return -c * ((t=t/d-1)*t*t*t - 1) + b; }, easeBothStrong: function(t, b, c, d){ //加加速減減速曲線 if ((t/=d/2) < 1) { return c/2*t*t*t*t + b; } return -c/2 * ((t-=2)*t*t*t - 2) + b; }, elasticIn: function(t, b, c, d, a, p){ //正弦衰減曲線(彈動漸入) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b+c; } if (!p) { p=d*0.3; } if (!a || a < Math.abs(c)) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b; }, elasticOut: function(t, b, c, d, a, p){ //正弦增強曲線(彈動漸出) if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b+c; } if (!p) { p=d*0.3; } if (!a || a < Math.abs(c)) { a = c; var s = p / 4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b; }, elasticBoth: function(t, b, c, d, a, p){ if (t === 0) { return b; } if ( (t /= d/2) == 2 ) { return b+c; } if (!p) { p = d*(0.3*1.5); } if ( !a || a < Math.abs(c) ) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } if (t < 1) { return - 0.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b; } return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 + c + b; }, backIn: function(t, b, c, d, s){ //回退加速(回退漸入) if (typeof s == ‘undefined‘) { s = 1.70158; } return c*(t/=d)*t*((s+1)*t - s) + b; }, backOut: function(t, b, c, d, s){ if (typeof s == ‘undefined‘) { s = 3.70158; //回縮的距離 } return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b; }, backBoth: function(t, b, c, d, s){ if (typeof s == ‘undefined‘) { s = 1.70158; } if ((t /= d/2 ) < 1) { return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b; } return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b; }, bounceIn: function(t, b, c, d){ //彈球減振(彈球漸出) return c - Tween[‘bounceOut‘](d-t, 0, c, d) + b; }, bounceOut: function(t, b, c, d){ if ((t/=d) < (1/2.75)) { return c*(7.5625*t*t) + b; } else if (t < (2/2.75)) { return c*(7.5625*(t-=(1.5/2.75))*t + 0.75) + b; } else if (t < (2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b; } return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b; }, bounceBoth: function(t, b, c, d){ if (t < d/2) { return Tween[‘bounceIn‘](t*2, 0, c, d) * 0.5 + b; } return Tween[‘bounceOut‘](t*2-d, 0, c, d) * 0.5 + c*0.5 + b; } } function getStyle(obj,attr) { if(obj.currentStyle){ return obj.currentStyle[attr]; } else{ return getComputedStyle(obj,false)[attr]; } } function starMove(obj,json,time,fx,callBack) { var iNowTime=getNow(); var iCur={}; for(var attr in json) { if(attr=="opacity") { iCur[attr]=Math.round(getStyle(obj,attr)*100); } else { iCur[attr]=parseInt(getStyle(obj,attr)); } } clearInterval(obj.oTimer); obj.oTimer=setInterval(function(){ var iTime=time-Math.max(0,iNowTime-getNow()+time); for(var attr in json) { var iVal=Tween[fx](iTime,iCur[attr],json[attr]-iCur[attr],time) if(attr=="opacity") { obj.style.opacity=iVal/100; obj.style.filter="alpha(opacity="+iVal+")" } else { obj.style[attr]=iVal+"px"; } } if(iTime==time) { clearInterval(obj.oTimer); if(callBack) { callBack.call(obj); } } },14); } function getNow() { return new Date().getTime(); } </script> <script> window.onload = function(){ var oList = document.getElementById(‘list‘); var aLi = oList.getElementsByTagName(‘li‘); var iLiHeight = aLi[0].offsetHeight; for(var i=0;i<aLi.length;i++){ var sHtml = aLi[i].innerHTML; aLi[i].innerHTML = ‘‘; for(var j=0;j<sHtml.length;j++){ aLi[i].innerHTML += ‘<span>‘+sHtml[j]+‘</span>‘; } var aSpan = aLi[i].children; for(var j=0;j<aSpan.length;j++){ aSpan[j].style.left = aSpan[j].offsetLeft+‘px‘; aSpan[j].style.top = aSpan[j].offsetTop+‘px‘; aSpan[j].startTop = aSpan[j].offsetTop; } for(var j=0;j<aSpan.length;j++){ aSpan[j].style.position = ‘absolute‘; (function(aSpan,num2){ var iStart = 0; var iSpanHeight = aSpan[0].offsetHeight; aSpan[num2].onmouseover = function(ev){ iStart = ev.clientY; } aSpan[num2].onmousemove = function(ev){ var iDis = ev.clientY-iStart; var iNum = iDis>0 ? 1 : -1; if(this.startTop+iDis>=0 && this.startTop+iDis<(iLiHeight - iSpanHeight)){ for(var j=0;j<aSpan.length;j++){ if(Math.abs(iDis)>Math.abs(num2-j)){ aSpan[j].style.top = aSpan[j].startTop+(Math.abs(iDis)-Math.abs(num2-j))*iNum+‘px‘; }else{ aSpan[j].style.top = aSpan[j].startTop+‘px‘; } } } } aSpan[num2].onmouseout = function(ev){ for(var j=0;j<aSpan.length;j++){ starMove(aSpan[j],{top:aSpan[j].startTop},500,‘elasticOut‘); } } })(aSpan,j); } } } </script> </head> <body> <ul id="list"> <li>一個好玩的彈性列表效果一個好玩的彈性列表效果</li> <li>一個好玩的彈性列表效果一個好玩的彈性列表效果</li> <li>一個好玩的彈性列表效果一個好玩的彈性列表效果</li> <li>一個好玩的彈性列表效果一個好玩的彈性列表效果</li> </ul> </body> <script> </script> </html>

寫了一個好玩的彈性列表效果