//不完全一致，但實現手段大致如此
(function(){
window._$ = window.$;
var $ = window.$ = function(s) {
return new $.fn.init(s);
};
$.fn = $.prototype = {
init: function(s) {
if(!s) return this;
if (s.nodetype) {
this.e = [];
this.e.push(s); //存儲獲取到的elements
return this;
}
if (typeof s == “string”) {
return $().find(s);
}
return this;
},
find: function(s) {
//根據傳入的string，查找dom
}
};
// extend擴展方法
$.fn.extend = function(p) {
for(var key in p) {
if(!$.fn[key]) {
$.fn[key] = p[key];
}
}
};
$.fn.init.prototype = $.fn;
})();
$().extend({
“a”: function(s){},
“b”: function(s){}
});// by cnwander
(function(){
window._$ = window.$;
var eleexpr = /([#/.a-za-z])([^/s]+)/g;
var $ = window.$ = function(s) {
return new $.fn.init(s);
};
$.fn = $.prototype = {
init: function(s) {
this.e = null;
if(!s) return this;
if (s.nodetype) {
this.e = [];
this.e.push(s);
return this;
}
if (typeof s == “string”) {
return $().find(s);
}
else
return this;
},
find: function(s) {
var wrap = this.e || [document];
var result = [];
for(var key in wrap) {
var target = wrap[key];
while(eleexpr.test(s)) {
var first = regexp.$1,
content = regexp.$2;
target = $().clean(target,content,first);
}
if(target == null)
result = null;
else
for(var i = 0; i < target.length; i++)
result.push(target[i]);
}
this.e = result;
return this;
},
clean: function(wrap,content,type){
if(!wrap) return null;
wrap = wrap instanceof array ? wrap : [wrap];
var result = new array();
for(var key in wrap) {
var temp;
switch(type) {
case “#”:
temp = wrap[key].getelementbyid(content);
break;
case “.”:
temp = $().getelemsbyclassname(content,wrap[key]);
break;
default:
temp = wrap[key].getelementsbytagname(type+content);
}
if(temp) {
temp = temp.length ? temp : [temp];
for (var i = 0; i < temp.length; i++)
if(temp[i].nodetype) result.push(temp[i]);
}
}
result = result.length <= 0 ? null : result;
return result;
},
getelemsbyclassname: function(classname,elem,tag) {
tag = tag || “*”;
elem = elem || document;
elem = elem instanceof array ? elem : [elem];
var result = new array();
for(var key in elem) {
var allelems = elem[key].getelementsbytagname(tag) || elem[key].all;
var oelem;
for(var i=0; i<allelems.length; i++){
oelem = allelems[i];
var list = oelem.classname.split(” “);
for(var j=0; j<list.length; j++){
if(list[j] == classname) result.push(oelem);
}
}
}
return result.length <= 0 ? null : result;
}
};
$.fn.extend = function(p) {
for(var key in p) {
if(!$.fn[key]) {
$.fn[key] = p[key];
}
}
};
$.fn.init.prototype = $.fn;
})();
$.ajax = function(url,poststr,lastfunc,errfunc) {
var ajax = false;
if(window.xmlhttprequest) {
ajax = new xmlhttprequest();
if (ajax.overridemimetype) {
ajax.overridemimetype(”text/xml”);
}
}
else if (window.activexobject) {
try {
ajax = new activexobject(”msxml2.xmlhttp”);
}
catch (e) {
try {
ajax = new activexobject(”microsoft.xmlhttp”);
}
catch (e) {
}
}
}
if (!ajax) {
if(errfunc) errfunc();
return false;
}
ajax.open(”post”, url, true);
ajax.setrequestheader(”content-type”,”application/x-www-form-urlencoded”);
ajax.send(poststr);
ajax.onreadystatechange = function() {
if (ajax.readystate == 4 && ajax.status == 200) {
if(lastfunc) lastfunc(ajax.responsetext);
}
}
}
$().extend({
”html”: function(val){
return val == undefined ?
(this.e[0] ?
this.e[0].innerhtml :
null) :
this.e[0].innerhtml = val;
},
”empty”: function() {
for(var i in this.e) {
var o = this.e[i];
o.innerhtml = ”;
}
return this;
},
”css”: function() {
if(!this.e || arguments.length <= 0) return this;
if(arguments.length == 1 && typeof arguments[0] == “string”) {
arguments[0] = arguments[0].tolowercase();
return this.e[0].currentstyle ?
this.e[0].currentstyle[arguments[0]] :
window.getcomputedstyle (this.e[0], “”).getpropertyvalue(arguments[0].replace(/([a-z])/g, “-$1′));
}
else if(arguments.length >= 2) {
for (var i in this.e)
this.e[i].style[arguments[0]] = arguments[1];
}
},
”hasclass”: function(name) {
if(!this.e) return this;
var allclass = this.e[0].classname.split(” “);
for (var key in allclass)
if(allclass[key] == name) return true;
return false;
},
”addclass”: function(name){
if(this.e)
for (var i in this.e)
if(this.e[i].nodetype == 1)
this.e[i].classname += ” “+name;
return this;
},
”removeclass”: function(name){
if(this.e)
for (var i in this.e) {
var temp = [],
allclass = this.e[i].classname.split(” “);
for(var j = 0, k = 0; j < allclass.length; j++) {
if(allclass[j] != name) {
temp[k++] = allclass[j]
}
}
allclass = temp.join(” “);
this.e[i].classname = allclass;
}
return this;
},
”mousedown”: function(callback){
if(!this.e) return this;
for(var key in this.e) {
this.e[key].onmousedown = callback;
return this;
}
},
”mouseover”: function(callback){if(!this.e) return this;for(var key in this.e) {this.e[key].onmouseover = callback} return this},
”mouseout”: function(callback){if(!this.e) return this;for(var key in this.e) {this.e[key].onmouseout = callback}return this}
});新聞熱點
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