zepto.js - 轻量级的移动开发JavaScript框架
Zepto.js 是移动端轻量级的JavaScript框架，实现JQuery的大部分API，针对手机上web开发，轻量级的是相对性的减少用户访问流量
Zepto官网 地址
可以到 github上下载zepto的源码也是进行模块划分的
Zepto 思维导向图：
常用返回对象情况：
1、return zepto.Z()，返回一个空的zepto对象：
2、return $(context).find(selector)
3、return $(document).ready(selector)
4、if (zepto.isZ(selector)) return selector
5、return $(context).find(selector)
6、return zepto.Z(dom, selector)
常用方法:
1、$(selector,context?) 传入一个选择器返回一个zepto对象
2、$(function(){}) 传入一个函数，dom ready时执行
3、$(html，attrs?) 传入一个html字符串，构建元素，返回一个或zepto对象
4、$(dom obj)传入dom对象返回zepto对象
Zepto modules
| module | default | description |
|---|---|---|
| zepto | ✔ | Core module; contains most methods |
| event | ✔ | Event handling via on() & off() |
| ajax | ✔ | XMLHttpRequest and JSONP functionality |
| form | ✔ | Serialize & submit web forms |
| ie | ✔ | Add support for Internet Explorer 10+ on desktop and Windows Phone 8. |
| detect | Provides $.os and $.browser information |
|
| fx | The animate() method |
|
| fx_methods | Animated show, hide, toggle, and fade*() methods. |
|
| assets | Experimental support for cleaning up iOS memory after removing image elements from the DOM. | |
| data | A full-blown data() method, capable of storing arbitrary objects in memory. |
|
| deferred | Provides $.Deferred promises API. Depends on the "callbacks" module. When included, $.ajax() supports a promise interface for chaining callbacks. |
|
| callbacks | Provides $.Callbacks for use in "deferred" module. |
|
| selector | Experimental jQuery CSS extensions support for functionality such as $('div:first') and el.is(':visible'). |
|
| touch | Fires tap– and swipe–related events on touch devices. This works with both `touch` (iOS, Android) and `pointer` events (Windows Phone). | |
| gesture | Fires pinch gesture events on touch devices | |
| stack | Provides andSelf & end() chaining methods |
|
| ios3 | String.prototype.trim and Array.prototype.reduce methods (if they are missing) for compatibility with iOS 3.x. |