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| 1 | +<!Doctype HTML> |
| 2 | +<html> |
| 3 | + <head> |
| 4 | + <meta charset='utf-8'> |
| 5 | + <title></title> |
| 6 | + <style> |
| 7 | + div{ |
| 8 | + width: 50px; |
| 9 | + height: 50px; |
| 10 | + float: left; |
| 11 | + background: red; |
| 12 | + margin-top: 50px; |
| 13 | + border: 1px solid black; |
| 14 | + font-size: 14px; |
| 15 | + } |
| 16 | + #div4{ |
| 17 | + filter:alpha(opacity:20); |
| 18 | + opacity: 0.2; |
| 19 | + } |
| 20 | + </style> |
| 21 | + </head> |
| 22 | + <body> |
| 23 | + <div id=""></div> |
| 24 | + <div id=""></div> |
| 25 | + <div id="">currentStyle</div> |
| 26 | + <div id=""></div> |
| 27 | + <div id="div4"></div> |
| 28 | + </body> |
| 29 | + <script> |
| 30 | + window.onload = function () |
| 31 | + { |
| 32 | + var oDiv = document.getElementsByTagName('div'); |
| 33 | + // oDiv1.onmouseover = function (){ |
| 34 | + // startMove(300); |
| 35 | + // } |
| 36 | + // oDiv1.onmouseout = function (){ |
| 37 | + // startMove(100); |
| 38 | + // } |
| 39 | + // var i =0; |
| 40 | + // for(i=0; i<oDiv.length; i++) |
| 41 | + // { |
| 42 | + |
| 43 | + // oDiv[i].timer=null; |
| 44 | + // oDiv[i].onmouseover = function () |
| 45 | + // { |
| 46 | + // startMove(this, 'width',100); |
| 47 | + // } |
| 48 | + // oDiv[i].onmouseout = function () |
| 49 | + // { |
| 50 | + // startMove(this, 'width' ,50); |
| 51 | + // } |
| 52 | + // } |
| 53 | + oDiv[0].onclick=function() |
| 54 | + { |
| 55 | + startMove(this,'width',300); |
| 56 | + |
| 57 | + } |
| 58 | + oDiv[1].onclick=function() |
| 59 | + { |
| 60 | + startMove(this, 'height', 300); |
| 61 | + } |
| 62 | + oDiv[2].onclick=function() |
| 63 | + { |
| 64 | + startMove(this, 'fontSize', 100); |
| 65 | + } |
| 66 | + oDiv[3].onclick=function() |
| 67 | + { |
| 68 | + startMove(this, 'borderWidth', 50); |
| 69 | + } |
| 70 | + oDiv[4].onmouseover=function() |
| 71 | + |
| 72 | + { |
| 73 | + |
| 74 | + startMove(this, 'opacity', 100); |
| 75 | + } |
| 76 | + oDiv[4].onmouseout=function() |
| 77 | + { |
| 78 | + startMove(this, 'opacity', 20); |
| 79 | + } |
| 80 | + |
| 81 | + } |
| 82 | + // var timer = null; |
| 83 | + |
| 84 | + function startMove(obj,attr,iTarget)/*运动框架主函数*/ |
| 85 | + { |
| 86 | + clearInterval(obj.timer); |
| 87 | + obj.timer = setInterval(function() |
| 88 | + { |
| 89 | + var iCur=0; |
| 90 | + if(attr=='opacity') |
| 91 | + { |
| 92 | + iCur=parseInt(parseFloat(getStyle(obj, attr))*100); |
| 93 | + } |
| 94 | + else |
| 95 | + { |
| 96 | + iCur=parseInt(getStyle(obj, attr)); |
| 97 | + } |
| 98 | + var iSpeed = (iTarget - iCur)/8;//获取速度 = (目标点 - 当前位置)/x |
| 99 | + iSpeed = iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed); |
| 100 | + |
| 101 | + if(iCur == iTarget) |
| 102 | + { |
| 103 | + clearInterval(obj.timer); |
| 104 | + } |
| 105 | + else |
| 106 | + { |
| 107 | + if(attr=='opacity') |
| 108 | + { |
| 109 | + obj.style.filter='alpha(opacity:'+(iCur+iSpeed)+' )';/*字符串链接 有优先级*/ |
| 110 | + obj.style.opacity=(iCur+iSpeed)/100; |
| 111 | + } |
| 112 | + else |
| 113 | + { |
| 114 | + obj.style[attr] = iCur + iSpeed +'px'; |
| 115 | + } |
| 116 | + } |
| 117 | + },50) |
| 118 | + } |
| 119 | + function getStyle(obj, attr)/*获取对象 属性值*/ |
| 120 | + { |
| 121 | + |
| 122 | + if(obj.currentStyle) |
| 123 | + { |
| 124 | + return obj.currentStyle[attr]; |
| 125 | + } |
| 126 | + else |
| 127 | + { |
| 128 | + return getComputedStyle(obj, false)[attr]; |
| 129 | + } |
| 130 | + |
| 131 | + } |
| 132 | + |
| 133 | + </script> |
| 134 | +</html> |
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