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本文实例讲述了jquery实现可旋转可拖拽的文字效果代码。分享给大家供大家参考,具体如下:
运行效果截图如下:

具体代码如下:
<html> <head><title>test</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><script type="text/javascript" src="jquery.js"></script><script type="text/javascript" > function scaleXBlock(blocker, scaleX){blocker.css({ "-moz-transform": "scaleX(" + scaleX + ")" , "-webkit-transform": "scaleX(" + scaleX + ")" , "-o-transform": "scaleX(" + scaleX + ")", "-ms-transform": "scaleX(" + scaleX + ")", "transform": "scaleX(" + scaleX + ")"}); } function getPosition(event){return { x: parseInt(event.pageX || event.X), y: parseInt(event.pageY || event.Y)} } function cancelEvent(event){if(event.preventDefault ) { event.preventDefault(); } else { //IE中阻止函数器默认动作的方式event.returnValue = false; }return false; } function stopDrag(blocker){blocker.data("draginfo", { isDrag: false});blocker.css("cursor", "arrow"); } function drag(blocker){blocker.data("draginfo", { isDrag: false});blocker.css("position", "absolute");blocker.mousedown(function(event){ event = event || window.event; var position = getPosition(event),offset = blocker.offset(),offsetX = position.x - parseInt(offset.left),offsetY = position.y - parseInt(offset.top); blocker.css("cursor", "move"); blocker.data("draginfo", {isDrag: true,offsetX: offsetX,offsetY: offsetY}); cancelEvent(event);});blocker.mouseup(function(){ stopDrag($(this));});$(document).mousemove(function(event){ var dragInfo = blocker.data("draginfo"); if(!dragInfo.isDrag) { return; } event = event || window.event; var position = getPosition(event),x = position.x - dragInfo.offsetX,y = position.y - dragInfo.offsetY; blocker.css({"left": x + "px","top": y + "px" }); cancelEvent(event);}).mouseup(function(){ stopDrag(blocker);}); } function loopScaleXBlock(timeout, mode, blocker, scaleX){scaleXBlock(blocker, scaleX);setTimeout(function(){ if(mode == "bigger") {if(scaleX < 1) { scaleX += 0.05;} else { mode = "smaller"; scaleX = 1;} } else {if(scaleX > 0) { scaleX -= 0.05;} else { mode = "bigger"; scaleX = 0.05;} } loopScaleXBlock(timeout, mode, blocker, scaleX);}, timeout); } function initDrag(){var dragList = $(".drag");for(var i=0,length=dragList.length; i<length; i++) { drag($(dragList[i]));} } function initScaleX(){var scaleXList = $(".scale");for(var i=0,length=scaleXList.length; i<length; i++) { loopScaleXBlock(10 * i + 10, "smaller", $(scaleXList[i]), 1);} } $(document).ready(function(){initScaleX();initDrag(); });</script><style type="text/css" > body{ margin:0;background:black; } .block{ position: absolute;text-align: center; display: block; width: 250px; height: 250px; background: #494949;font-size: 80px;color: #fff;line-height: 125px;text-shadow: 2px 2px 2px #fff;box-shadow: 2px 2px 2px #fff;cursor: pointer;opacity: 0.6;filter: alpha(opacity=60); } #scale {left:0;top:0; } #scale2 {left:300px;top:0;background: #F2F2F2;color: orange; } #scale3 {left:600px;top:0;background: orange;color: #494949; } #scale4 {left:900px;top:0;background: green;color: gray; } #scale5 {left:1200px;top:0;background: #494949;color: orange; }</style> </head> <body><div class="block scale drag" id="scale"> 欢迎来看咧</div><div class="block scale drag" id="scale2"> 欢迎来看咧</div><div class="block scale drag" id="scale3"> 欢迎来看咧</div><div class="block scale drag" id="scale4"> 欢迎来看咧</div><div class="block scale drag" id="scale5"> 欢迎来看咧</div> </body></html>
更多关于jQuery特效相关内容感兴趣的读者可查看本站专题:《jQuery常见经典特效汇总》及《jQuery动画与特效用法总结》
希望本文所述对大家jQuery程序设计有所帮助。