(function (window){
var zepoto = {};
function Z(dom, selector){
var i, len = dom ? dom.length : 0;
for (i = 0; i < len; i++){
this[i] = dom[i];
}
this.length = len;
this.selector = selector || '';
}
zepto.Z = function(dom, selector){
return new Z(dom, selector);
}
zepto.init = function(selector){
var slice = Array.prototype.slice;
var dom = slice.call(document.querySelectorAll(selector))
return zepto.Z(dom, selector);
}
var $ = function(selector) {
return zepto.init(selector);
}
window.$ = $;
$.fn = {
css: function (key, value){
},
html: function (value) {
}
}
Z.prototype = $.fn; //为什么要写在$.fn下,再定义一个对象不行吗?这样做有什么优点?
})(window)
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