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JavaScript图片放大镜效果代码[代码比较简单]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <style type="text/css"> #div1 { width:304px; height:222px; position:relative; margin:30px auto 0px;} #div1 img{width:304px; height:222px;} #div1 span { width:100px; height:100px; background:red; left:0px;top:0px; position:absolute; display:none; filter:alpha(opacity:20); opacity:0.2;} .show { width:100%; height:100%; background:red; position:absolute; z-index:10px; filter:alpha(opacity:10); opacity:0.1; left:0px; top:0px; } #div2 {width:304px; height:222px; position:relative; display:none; overflow:hidden; margin:0px auto 0px;} #img1 { position:absolute;} </style> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>JavaScript 图片放大代码</title> <img src="/_New/_cj/myeditor/sysimage/space.gif" class="ewebeditor__script" _ewebeditor_fake_tag="script" _ewebeditor_fake_value="%3Cscript%20type%3D%22text%2Fjavascript%22%3E%20%0D%0Awindow.onload%3Dfunction%20()%20%0D%0A%7B%20%0D%0Avar%20oDiv%3Ddocument.getElementById('div1')%3B%20%0D%0Avar%20oShow%3DoDiv.getElementsByTagName('div')%5B0%5D%3B%20%0D%0Avar%20oSpan%3DoDiv.getElementsByTagName('span')%5B0%5D%3B%20%0D%0Avar%20oImg%3Ddocument.getElementById('img1')%3B%20%0D%0AoShow.onmouseover%3Dfunction()%20%0D%0A%7B%20%0D%0AoSpan.style.display%3D'block'%3B%20%0D%0AoImg.parentNode.style.display%3D'block'%3B%20%0D%0A%7D%3B%20%0D%0AoShow.onmouseout%3Dfunction()%20%0D%0A%7B%20%0D%0AoSpan.style.display%3D'none'%3B%20%0D%0AoImg.parentNode.style.display%3D'none'%3B%20%0D%0A%7D%3B%20%0D%0AoShow.onmousemove%3Dfunction(ev)%20%0D%0A%7B%20%0D%0Avar%20oEvent%3Dev%7C%7Cevent%3B%20%0D%0Avar%20x%3DoEvent.clientX-oDiv.offsetLeft-oSpan.offsetWidth%2F2%3B%20%0D%0Avar%20y%3DoEvent.clientY-oDiv.offsetTop-oSpan.offsetHeight%2F2%3B%20%0D%0A%0D%0Aif(x%3C0)%20%0D%0A%7B%20%0D%0Ax%3D0%3B%20%0D%0A%7D%20%0D%0Aelse%20if(x%3EoShow.offsetWidth-oSpan.offsetWidth)%20%0D%0A%7B%20%0D%0Ax%3DoShow.offsetWidth-oSpan.offsetWidth%3B%20%0D%0A%7D%20%0D%0Aif(y%3C0)%20%0D%0A%7B%20%0D%0Ay%3D0%3B%20%0D%0A%7D%20%0D%0Aelse%20if(y%3EoShow.offsetHeight-oSpan.offsetHeight)%20%0D%0A%7B%20%0D%0Ay%3DoShow.offsetHeight-oSpan.offsetHeight%20%0D%0A%7D%20%0D%0A%0D%0AoSpan.style.left%3Dx%2B'px'%3B%20%0D%0AoSpan.style.top%3Dy%2B'px'%3B%20%0D%0Avar%20percentX%3Dx%2F(oShow.offsetWidth-oSpan.offsetWidth)%3B%20%0D%0Avar%20percentY%3Dy%2F(oShow.offsetHeight-oSpan.offsetHeight)%3B%20%0D%0Avar%20oImgparent%3DoImg.parentNode%3B%20%0D%0AoImg.style.left%3D-percentX*(oImg.offsetWidth-oImgparent.offsetWidth)%2B'px'%3B%20%0D%0AoImg.style.top%3D-percentY*(oImg.offsetHeight-oImgparent.offsetHeight)%2B'px'%3B%20%0D%0A%7D%3B%20%0D%0A%7D%3B%20%0D%0A%3C%2Fscript%3E"> </head> <body> <div id="div1"> <img src="http://files.glzy8.com/demoimg/201102/11_2_2.jpg" _ewebeditor_ta_src="http%3A%2F%2Ffiles.glzy8.com%2Fdemoimg%2F201102%2F11_2_2.jpg" /> <span></span> <div class="show"></div> </div> <div id="div2"> <img id="img1" src="http://files.glzy8.com/demoimg/201102/11_2_2.jpg" _ewebeditor_ta_src="http%3A%2F%2Ffiles.glzy8.com%2Fdemoimg%2F201102%2F11_2_2.jpg" /> </div> </body> </html>
[Ctrl+A 全选 注:
如需引入外部Js需刷新才能执行
]
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