本文实例讲述了javascript实现的图片切割多块效果。分享给大家供大家参考。具体实现方法如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ru"><head> <title></title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><style type="text/css">.line{ display:none; z-index:1; left:0; top:0; position:absolute;}#line1{ display:block;}.container{ position:relative; width:564px; height:294px; overflow:hidden;}.border{ border:5px solid #000;}.corner{ position:absolute; width:282px; height:147px; background:#ccc; overflow:hidden;}.leftTop,.inLeftTop{ position:absolute; left:0; top:0; right:auto; bottom:auto;}.rightTop,.inRightTop{ position:absolute; right:0; top:0; left:auto; bottom:auto;}.rightBottom,.inRightBottom{ position:absolute; right:0; bottom:0; top:auto; left:auto;}.leftBottom,.inLeftBottom{ position:absolute; left:0; bottom:0; top:auto; right:auto;}</style></head><body><script src="jquery-1.6.2.min.js" type="text/javascript"></script><script type="text/javascript">function crossLine(container,option,callback){var lineX=$("<div style='width:2000px;height:4px;overflow:hidden;position:absolute;background:#FACC41;left:0;top:0;z-index:1'></div>");var lineY=$("<div style='width:4px;height:2000px;overflow:hidden;position:absolute;background:#FACC41;left:0;top:0;z-index:1'></div>");var _option={ "display":"none", "targetPosX":container.width()/2-2, "targetPosY":container.height()/2-2, "time":500, "freq":10};$.extend(_option,option);option=_option;var targetPosX=option.targetPosX;var targetPosY=option.targetPosY;var time=option.time;var freq=option.freq;times=time/freq;container.append(lineX).append(lineY);//开始运动var lxt=lineX.position().top;var lyl=lineY.position().left;xPerTime=targetPosX/times;yPerTime=targetPosY/times;var count=0;var si=setInterval(function(){ count++; if(count>=times){ clearInterval(si); if(typeof(callback)=="function"){ callback(); } if(option.display=="none"){ lineX.remove(); lineY.remove(); } } if(lxt+yPerTime<=targetPosY){ lxt += yPerTime; lineX.css("top",lxt); }else{ lxt=targetPosY; lineX.css("top",targetPosY); } if(lyl+xPerTime<=targetPosX){ lyl += xPerTime; lineY.css("left",lyl); }else{ lyl=targetPosX; lineY.css("left",targetPosX); }},freq);}function picSplit(line1,line2,container,option){//beginline1.css("z-index",2);/*var targetX=282;var targetY=147;*/var _option={ "targetX":container.width()/2, "targetY":container.height()/2, "time":500, "freq":10};$.extend(_option,option);option=_option;var targetX=option.targetX;var targetY=option.targetY;var containerWidth=container.width();var containerHeight=container.height();/**复制四个，放入四个容器，置于四角，然后移动*///div0-4 容器，放置于四角var div0=$("<div></div>").css({"position":"absolute","left":0,"top":0,"right":"auto","bottom":"auto","width":targetX,"height":targetY,"z-index":"2","overflow":"hidden"}).appendTo(container);var div1=$("<div></div>").css({"position":"absolute","left":targetX,"top":0,"right":"auto","bottom":"auto","width":containerWidth-targetX,"height":targetY,"z-index":"2","overflow":"hidden"}).appendTo(container);var div2=$("<div></div>").css({"position":"absolute","left":targetX,"top":targetY,"right":"auto","bottom":"auto","width":targetX,"height":containerHeight-targetY,"z-index":"2","overflow":"hidden"}).appendTo(container);var div3=$("<div></div>").css({"position":"absolute","left":0,"top":targetY,"right":"auto","bottom":"auto","width":targetX,"height":containerHeight-targetY,"z-index":"2","overflow":"hidden"}).appendTo(container);//tempL0-4复制出来的层var tempL0=line1.clone().css({"position":"absolute","left":0,"top":0,"right":"auto","bottom":"auto","z-index":"2"}).appendTo(div0);var tempL1=line1.clone().css({"position":"absolute","left":-targetX,"top":0,"right":"auto","bottom":"auto","z-index":"2"}).appendTo(div1);var tempL2=line1.clone().css({"position":"absolute","left":-targetX,"top":-targetY,"right":"auto","bottom":"auto","z-index":"2"}).appendTo(div2);var tempL3=line1.clone().css({"position":"absolute","left":0,"top":-targetY,"right":"auto","bottom":"auto","z-index":"2"}).appendTo(div3);line1.css("display","none");line2.css("display","block");//开始运动var time=option.time;var freq=option.freq;var times=time/freq;var count=0;var xLeftPerTime=3;var xRightPerTime=3;var yTopPerTime=3;var yBottomPerTime=3;var l0=div0.position().left;var t0=div0.position().top;var l1=div1.position().left;var t1=div1.position().top;var l2=div2.position().left;var t2=div2.position().top;var l3=div3.position().left;var t3=div3.position().top;var si=setInterval(function(){ count++; if(count>=times){ clearInterval(si); div0.remove(); div1.remove(); div2.remove(); div3.remove(); } l0=l0-xLeftPerTime; t0=t0-yTopPerTime; l1=l1+xRightPerTime; t1=t1-yTopPerTime; l2=l2+xRightPerTime; t2=t2+yBottomPerTime; l3=l3-xLeftPerTime; t3=t3+yBottomPerTime; div0.css("left",(l0-xLeftPerTime)+"px"); div0.css("top",(t0-yTopPerTime)+"px"); div1.css("left",(l1+xRightPerTime)+"px"); div1.css("top",(t1-yTopPerTime)+"px"); div2.css("left",(l2+xRightPerTime)+"px"); div2.css("top",(t2+yBottomPerTime)+"px"); div3.css("left",(l3-xLeftPerTime)+"px"); div3.css("top",(t3+yBottomPerTime)+"px");},freq);}</script><div class="container" id="container"><div class="line" id="line1"><img src="http://static.house.sina.com.cn/apileju/cms/110819/1820432103.jpg" alt="" /></div><div class="line" id="line2"><img src="http://static.house.sina.com.cn/apileju/cms/110819/1110183294.jpg" alt="" /></div></div><input type="button" value="GO" onclick="javascript:go()" /><script type="text/javascript">var line1=$("#line1");var line2=$("#line2");line1.css("display","block");var container=$("#container");function go(){ var option={"display":"none"}; crossLine(container,option,gopicSplit);}var container=$("#container");function gopicSplit(){ picSplit(line1,line2,container);}</script></body></html>希望本文所述对大家的javascript程序设计有所帮助。
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