html:
用<script src='..'>引入elevatezoom的js
在要使用的图片<img>里面加上属性：data-zoom-image=‘任意图片路径’（该图片不重要）
js:
自己定义一个函数：
function elevatezoom_show(url, box) {
var big = $(box).data('elevateZoom'); //box放img的id或者类名
big.swaptheimage(url, url);
}
在id处调用放大镜：（可以在option里面设置放大镜配置，也可以去掉option，此时为默认配置）
var option = { zoomWindowOffety: 190, zoomWindowOffetx: -340, zoomWindowWidth: 700, zoomWindowHeight: 800 };
$('#我是图片id').elevateZoom(option);
直接在引入图片的地方调用函数：
elevatezoom_show(url, box) // url放图片地址，box放img的id
放大镜就搞定了！！
另附：
elevateZoom的配置表：
| 参数 | 描述 | 默认值 |
| responsive | Set to true to activate responsivenes. If you have a theme which changes size, or tablets which change orientation this is needed to be on. Possible Values: | false |
| scrollZoom | Set to true to activate zoom on mouse scroll. Possible Values: | false |
| imageCrossfade | Set to true to activate simultaneous crossfade of images on gallery change. Possible Values: | false |
| loadingIcon | Set to the url of the spinner icon to activat | false |
| easing | Set to true to activate easing. | false |
| easingType | default easing type is easeOutExpo, (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b Extend jquery with other easing types before initiating the plugin and pass the easing type as a string value. | zoomdefault |
easingDuration |
||
| lensSize | used when zoomType set to lens, when zoom type is set to window, then the lens size is auto calculated | 200 |
| zoomWindowWidth | Width of the zoomWindow (Note: zoomType must be | 400 |
| zoomWindowHeight | Height of the zoomWindow (Note: zoomType must be | 400 |
| zoomWindowOffetx | x-axis offset of the zoom window | 0 |
| zoomWindowOffety | y-axis offset of the zoom window | 0 |
| zoomWindowPosition | Once positioned, use zoomWindowOffsetx and zoomWindowOffsety to adjust Possible values: 1-16 | 1 |
| zoomTintFadeIn | Set as a number e.g 200 for speed of Tint fadeIn | false |
| zoomTintFadeOut | Set as a number e.g 200 for speed of Tint fadeOut | false |
| borderSize | Border Size of the ZoomBox - Must be set here as border taken into account for plugin calculations | 4 |
| gallery | This assigns a set of gallery links to the zoom image | null |
| tint | enable a tint overlay, other options: true | false |
| tintColour | colour of the tint, can be #hex, word (red, blue), or rgb(x, x, x) | #333 |
| tintOpacity | 0.4 | opacity of the tint |
| zoomLens | set to false to hide the Lens | true |
该表出处：http://www.sucaihuo.com/js/127.html
注意：一般放大镜都是一大一小两张图 ，该方法适用只有一张大图的时候。如有两张图，将函数里面的big.swaptheimage(url, url);放入不同图片地址，修改函数重新调用