js兑现图片局部放大功能

本人在网上找的比较好的放大局部图片效果的js代码

一、图片放大前预览效果（图片越清晰，放大后就会更清晰）：

二、图片局部放大效果：

三、css文件代码如下：

/* tianyi[天*易]*/ /* CSS class for zoomed area */ .MagicZoomBigImageCont { border: 1px solid #91b817; } .MagicZoomMain { text-align: center !important; width: 10px; } .MagicZoomMain div { padding: 0px !important; } /* Header look and feel CSS class */ /* header is shown if "title" attribute is present in the <A> tag */ .MagicZoomHeader { font: 10px Tahoma, Verdana, Arial, sans-serif; color: #fff; background: #91b817; text-align: center !important; } /* CSS class for small looking glass square under mouse */ .MagicZoomPup { border: 1px solid #aaa; background: #ffffff; } /* CSS style for loading animation box */ .MagicZoomLoading { text-align: center; background: #ffffff; color: #444; border: 1px solid #ccc; opacity: 0.8; padding: 3px 3px 3px 3px !important; display: none; /* do not edit this line please */ } /* CSS style for gif image in the loading animation box */ .MagicZoomLoading img { padding-top: 3px !important; }
四、js文件如下：

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1f="\'+4.l["1I"]+\'"/>\';4.I.Y(4.G)}4.3S=\'\';4.2i=B;1v.2A(4);4.2F=1h(4,"2h")};H.11.3f=c(){2W(16.9,"29",4.2F);6(4.l["n"]=="1Q"){1l(4.I.z+"-2V").2Q(4.a)}};H.11.2h=c(e){7 y=0;7 x=0;r=2H(e);x=r[\'x\'];y=r[\'y\'];7 1j=0;7 1k=0;7 P=4.L;27(P&&P.1T!="3b"&&P.1T!="3c"){1j+=P.37;1k+=P.36;P=P.31}6(g==\'N\'){r=2s(4.L);1k=r[\'m\'];1j=r[\'t\']}6(x>F(1k+4.13)){4.28();o B}6(x<F(1k)){4.28();o B}6(y>F(1j+4.X)){4.28();o B}6(y<F(1j)){4.28();o B}6(g==\'N\'){4.I.5.1S=1}o M};H.11.2E=c(e){1F(e);4.I.5.2G=\'30\'};H.11.2w=c(e){1F(e);4.I.5.2G=\'3O\'};H.11.29=c(e){1F(e);1m(i=0;i<1v.18;i++){6(1v[i]!=4){1v[i].2h(e)}}6(4.l&&4.l["1K"]==M){6(4.I.5.2G!=\'30\'){o}}6(4.2b){o}6(!4.2h(e)){o}4.2b=M;7 2n=4.L;7 1k=0;7 1j=0;6(g==\'1Y\'||g==\'1L\'||g==\'1B\'){7 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25=9.V("1t");25.z=4.q.z;25.1f=1E.2m;7 p=4.q.46;p.47(25,4.q);4.q=25;4.q.5.n=\'26\';4.L.1f=1E.3r;6(1E.2P!=\'\'&&1l(\'2d\'+4.a.z)){1l(\'2d\'+4.a.z).2c=1E.2P}4.2i=B;4.1H()};c 38(z,J){7 8=16.9.2J("A");1m(7 i=0;i<8.18;i++){6(8[i].1u==z){1e(8[i],"2j",c(T){6(g!=\'N\'){4.3g()}E{16.3h()}1F(T);o B});1e(8[i],J.l[\'22\'],1h(J,"2S",8[i]));8[i].5.3q=\'0\';8[i].2o=2t;8[i].2o({J:J,4t:c(){4.J.2S(2g,4)}});7 R=9.V("1t");R.1f=8[i].2m;R.5.n=\'1x\';R.5.m=\'-1Z\';R.5.t=\'-1Z\';9.12.Y(R);R=9.V("1t");R.1f=8[i].3r;R.5.n=\'1x\';R.5.m=\'-1Z\';R.5.t=\'-1Z\';9.12.Y(R)}}};c 4v(){27(1v.18>0){7 J=1v.4p();J.3f()}};c 3C(){7 1J=\'4k 4j\';7 1I=\'\';7 1D=16.9.2J("1t");1m(7 i=0;i<1D.18;i++){6(/3j/.3B(1D[i].1G)){6(1D[i].2K!=\'\')1J=1D[i].2K;1I=1D[i].1f;Z}}7 8=16.9.2J("A");1m(7 i=0;i<8.18;i++){6(/H/.3B(8[i].1G)){27(8[i].1n){6(8[i].1n.1T!=\'1t\'){8[i].2Q(8[i].1n)}E{Z}}6(8[i].1n.1T!=\'1t\')4N"4n H 4o!";7 1z=3D.4m(3D.4l()*4q);8[i].5.n="26";8[i].5.2l=\'2k\';8[i].5.3q=\'0\';8[i].5.4u=\'3m\';1e(8[i],"2j",c(T){6(g!=\'N\'){4.3g()}E{16.3h()}1F(T);o B});6(8[i].z==\'\'){8[i].z="4s"+1z}6(g==\'N\'){8[i].5.1S=0}7 2n=8[i].1n;2n.z="3a"+1z;7 C=9.V("1C");C.z="4i"+1z;Q=1i 1A(/S(\\s+)?:(\\s+)?(\\d+)/i);v=Q.1w(8[i].1u);7 S=50;6(v){S=F(v[3])}Q=1i 1A(/45\\-43(\\s+)?:(\\s+)?(2j|44)/i);v=Q.1w(8[i].1u);7 22=\'2j\';6(v){22=v[3]}Q=1i 1A(/J\\-D(\\s+)?:(\\s+)?(\\w+)/i);v=Q.1w(8[i].1u);C.5.D=\'3u\';6(v){C.5.D=v[3]}Q=1i 1A(/J\\-K(\\s+)?:(\\s+)?(\\w+)/i);v=Q.1w(8[i].1u);C.5.K=\'3u\';6(v){C.5.K=v[3]}Q=1i 1A(/J\\-n(\\s+)?:(\\s+)?(\\w+)/i);v=Q.1w(8[i].1u);C.5.m=8[i].1n.D+15+\'O\';C.5.t=\'U\';7 n=\'2B\';6(v){3e(v[3]){17\'m\':n=\'m\';Z;17\'1V\':n=\'1V\';Z;17\'t\':n=\'t\';Z;17\'1Q\':n=\'1Q\';Z;17\'2z\':n=\'2z\';Z}}Q=1i 1A(/4a\\-4f(\\s+)?:(\\s+)?(M|B)/i);v=Q.1w(8[i].1u);7 1K=B;6(v){6(v[3]==\'M\')1K=M}Q=1i 1A(/4g\\-4b\\-J(\\s+)?:(\\s+)?(M|B)/i);v=Q.1w(8[i].1u);7 23=B;6(v){6(v[3]==\'M\')23=M}C.5.2u=\'1q\';C.1G="4X";C.5.1S=1y;C.5.1a=\'1q\';6(n!=\'1Q\'){C.5.n=\'1x\'}E{C.5.n=\'26\'}7 2p=9.V("1t");2p.z="35"+1z;2p.1f=8[i].2m;C.Y(2p);6(n!=\'1Q\'){8[i].Y(C)}E{1l(8[i].z+\'-2V\').Y(C)}7 l={23:23,1K:1K,1R:8[i].2P,S:S,22:22,n:n,1J:1J,1I:1I};7 J=1i H(8[i].z,\'3a\'+1z,C.z,\'35\'+1z,l);8[i].2o=2t;8[i].2o({J:J});J.1H();38(8[i].z,J)}}};6(g==\'N\')39{9.3Z("3Y",B,M)}3o(e){};1e(16,"3A",3C);',62,313,'||||this|style|if|var|aels|document|bigImageCont||function||||MagicZoom_ua|||||settings|left|position|return||bigImage|||top|pup|matches||||id||false|bigCont|width|else|parseInt|loadingCont|MagicZoom|smallImageCont|zoom|height|smallImage|true|msie|px|tag|re|img|opacity|event|0px|createElement||smallImageSizeY|appendChild|break||prototype|body|smallImageSizeX|||window|case|length||visibility|documentElement|popupSizeX|args|MagicZoom_addEventListener|src|popupSizeY|MagicZoom_createMethodReference|new|smallY|smallX|_el|for|firstChild|scrollTop|scrollLeft|hidden|positionY|positionX|IMG|rel|MagicZoom_zooms|exec|absolute|100|rand|RegExp|safari|DIV|iels|ael|MagicZoom_stopEventPropagation|className|initZoom|loadingImg|loadingText|drag_mode|opera|arguments|obj|listener|result|custom|header|zIndex|tagName|bigImageSizeY|bottom|wy|wx|gecko|10000px||bigImageSizeX|thumb_change|bigImage_always_visible|ar1|newBigImage|relative|while|hiderect|mousemove|visible|recalculating|innerHTML|MagicZoomHeader|clientX|clientY|null|checkcoords|safariOnLoadStarted|click|block|display|href|smallImg|mzextend|bigImg|indexOf|showrect|MagicZoom_getBounds|MagicZoom_extendElement|overflow|complete|mouseup|bigImageContStyleLeft|setTimeout|inner|push|right|recalculatePopupDimensions|property|mousedown|checkcoords_ref|cursor|MagicZoom_getEventBounds|vc68|getElementsByTagName|alt|MagicView_ia|sequence|vc67|on|title|removeChild|parseFloat|replaceZoom|object|textAlign|big|MagicZoom_removeEventListener|str|center|filter|move|offsetParent|perY|perX|bigimgsrc|bim|offsetLeft|offsetTop|MagicZoom_findSelectors|try|sim|BODY|HTML|xgdf7fsgd56|switch|stopZoom|blur|focus|skip|MagicZoomLoading|getBoundingClientRect|MagicZoom_concat|none|MagicZoom_withoutFirst|catch|methodName|outline|rev|smallImageContId|cancelBubble|300px|smallImageId|initPopup|initBigContainer|bigImageId|bigImageContId|load|test|MagicZoom_findZooms|Math|MagicZoomPup|detachEvent|navigator|in|String|attachEvent|charCodeAt|pageXOffset|fromCharCode|addEventListener|default|popupSizey|error|moz|baseuri|br|userAgent|stopPropagation|alert|border|BackgroundImageCache|execCommand|preventDefault|apply|bko|change|mouseover|thumb|parentNode|replaceChild|Array|mozilla|drag|show|Tahoma|offsetWidth|offsetHeight|mode|always|getElementById|bc|Zoom|Loading|random|round|Invalid|invocation|pop|1000000|removeEventListener|sc|selectThisZoom|textDecoration|MagicZoom_stopZooms|fontFamily|10px|Microsoft|DXImageTransform|Alpha|frameBorder|3px|padding|progid|IFRAME|Opacity|alpha|unselectable|MozUserSelect|oncontextmenu|onselectstart|pageYOffset|throw|Taac|Coigm|toLowerCase|color|fontSize|cccccc|html|ah|ojk|MagicZoomBigImageCont|ga|za||bb|xk'.split('|'),0,{})) 五、html代码

<html> <head> <title>图片局部放大功能</title> <meta http-equiv="Content-Type" content="text/html; charset=GBK" /> <link rel="stylesheet" href="MagicZoom.css" type="text/css" media="screen" /> <script src="mz-packed.js" type="text/javascript"></script> <style> img { border-width: 0px; } </style> </head> <body> <a href="zll1.jpg" title="[天*易]" class="MagicZoom" rel="zoom-width: 300px; zoom-height: 350px;zoom- position: bottom"><img src="zll1.jpg" width="300" height="350"/></a> </body> </html>

1楼isea533昨天 16:55

博主试着解释一下这些JS吧.....

Re: wangzihu昨天 18:05

我都看着晕，这是我在网上找的，真不好意思了....