滚动数字展示
效果如下所示:?
<!DOCTYPE html> <html><head><meta charset="utf-8" /><title></title></head><body style="text-align:center"><img src="img/hunli.jpg" style="margin:300px"/><img src="img/zhaopain.jpg" /></body> </html>?
/*** 鏁板瓧婊氬姩js* @param {Object} $*/ (function($) { if(!document.defaultView || !document.defaultView.getComputedStyle){var oldCurCSS = jQuery.curCSS;jQuery.curCSS = function(elem, name, force){if(name === 'background-position'){name = 'backgroundPosition';}if(name !== 'backgroundPosition' || !elem.currentStyle || elem.currentStyle[ name ]){return oldCurCSS.apply(this, arguments);}var style = elem.style;if ( !force && style && style[ name ] ){return style[ name ];}return oldCurCSS(elem, 'backgroundPositionX', force) +' '+ oldCurCSS(elem, 'backgroundPositionY', force);}; }var oldAnim = $.fn.animate; $.fn.animate = function(prop){if('background-position' in prop){prop.backgroundPosition = prop['background-position'];delete prop['background-position'];}if('backgroundPosition' in prop){prop.backgroundPosition = '('+ prop.backgroundPosition + ')';}return oldAnim.apply(this, arguments); };function toArray(strg){strg = strg.replace(/left|top/g,'0px');strg = strg.replace(/right|bottom/g,'100%');strg = strg.replace(/([0-9\.]+)(\s|\)|$)/g,"$1px$2");var res = strg.match(/(-?[0-9\.]+)(px|\%|em|pt)\s(-?[0-9\.]+)(px|\%|em|pt)/);return [parseFloat(res[1],10),res[2],parseFloat(res[3],10),res[4]]; }$.fx.step.backgroundPosition = function(fx) {if (!fx.bgPosReady) {var start = $.css(fx.elem,'backgroundPosition');if(!start){//FF2 no inline-style fallbackstart = '0px 0px';}start = toArray(start);fx.start = [start[0],start[2]];var end = toArray(fx.end);fx.end = [end[0],end[2]];fx.unit = [end[1],end[3]];fx.bgPosReady = true;}var nowPosX = [];nowPosX[0] = ((fx.end[0] - fx.start[0]) * fx.pos) + fx.start[0] + fx.unit[0];nowPosX[1] = ((fx.end[1] - fx.start[1]) * fx.pos) + fx.start[1] + fx.unit[1];fx.elem.style.backgroundPosition = nowPosX[0]+' '+nowPosX[1]; }; })(jQuery);總結
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