js中use或者using方法

var YANMethod = { ???using:function() { ???????var a = arguments, o = this, i = 0, j, d, arg, isExist; ???????arg = a[0], isExist = a[1]; ???????if (arg && arg.indexOf(‘.‘)) { ???????????d = arg.split(‘.‘); ???????????for (j = (d[0] == ‘YAN‘) ? 1 : 0; j < d.length; j++) { ???????????????if(!o[d[j]] && isExist) return null; ???????????????o[d[j]] = o[d[j]] || {}; ???????????????o = o[d[j]]; ???????????} ???????} else { ???????????o[arg] = o[arg] || {}; ???????} ???????return o; ???}, ???/*-- ???????用新Cookie方法，但是兼容老的东西 ???????-ver 2014-04-22 ???*/ ???cookie:function(name, value, options) { ???????if(typeof value===‘undefined‘){ ???????????return Cookie.get(name); ???????} ???????if(options){ ???????????options.exp = typeof options.expires===‘number‘ ? options.expires * 24 : ???????????????options.expires; //原来的cookie是按天算的 ???????} ???????Cookie.set(name, value, options); ???}, ???????/** ????*JSON序列化，如果传入的是字符串则反序列化为对象;若传入的是对象则反序列化为字符串 ????*/ ???json:function(value){ ???????if(typeof value==="string"){ ???????????return this.jsontoObject(value); ???????}else{ ???????????return this.jsontoJSON(value); ???????} ???}, ???jsontoJSON:function(object){ ???????var type = typeof object; ???????if (‘object‘ == type) { ???????????if (Array == object.constructor) type = ‘array‘; ???????????else if (RegExp == object.constructor) type = ‘regexp‘; ???????????else type = ‘object‘; ???????} ???????switch (type) { ???????????case ‘undefined‘: ???????????case ‘unknown‘: ???????????????return; ???????????break; ???????????case ‘function‘: ???????????case ‘boolean‘: ???????????case ‘regexp‘: ???????????????return object.toString(); ???????????break; ???????????case ‘number‘: ???????????????return isFinite(object) ? object.toString() : ‘null‘; ???????????break; ???????????case ‘string‘: ???????????????return ‘"‘ + object.replace(/(\\|\")/g, "\\$1").replace(/\n|\r|\t/g, function() { ???????????????????var a = arguments[0]; ???????????????????return (a == ‘\n‘) ? ‘\\n‘: (a == ‘\r‘) ? ‘\\r‘: (a == ‘\t‘) ? ‘\\t‘: "" ???????????????}) + ‘"‘; ???????????break; ???????????case ‘object‘: ???????????????if (object === null) ????????????????????return ‘null‘; ???????????????var results = []; ???????????????for (var property in object) { ???????????????????var value = this.jsontoJSON(object[property]); ???????????????????if (value !== undefined) ????????????????????????results.push(this.jsontoJSON(property) + ‘:‘ + value); ???????????????} ???????????????return ‘{‘ + results.join(‘,‘) + ‘}‘; ???????????break; ???????????case ‘array‘: ???????????????var results = []; ???????????????for (var i = 0; i < object.length; i++) { ???????????????????var value = this.jsontoJSON(object[i]); ???????????????????if (value !== undefined) ????????????????????????results.push(value); ???????????????} ???????????????return ‘[‘ + results.join(‘,‘) + ‘]‘; ???????????break; ???????} ???}, ???????jsontoObject:function(strjson){ ???????return eval("(" + strjson + ")"); ???}};var addFunToYAN = function(functionName,func){ ???if(typeof(func) == ‘function‘) ???????YAN[functionName] = func;};for(var m in YANMethod){ ???if(typeof(YAN[m]) == ‘undefined‘){ ???????addFunToYAN(m,YANMethod[m]); ???}}$.extend(YAN.using("Plugin"),{});$.extend(YAN.using("Utils"),{ ???getQuery:function(name){ ?????????var paramList = location.search.replace("?","").split("&"); ?????????for(var i = 0 ; i < paramList.length ; i++) ?????????{ ?????????????if(paramList[i].split("=")[0] == name){ ?????????????????return paramList[i].substring(paramList[i].indexOf("=") + 1,paramList[i].length); ?????????????} ?????????} ?????????return null; ???}});var Plugin = YAN.using(‘Plugin‘);Plugin.AD = ad;Plugin.AD.getFlashAd();window.AD || (window.AD = YAN.using(‘Plugin‘).AD);