module=[ {'name':'jquery','src':'/js/lib/jquery-1.8.3.js'}, {'name':'swfobject','src':'/js/utils/swfobject.js'}, {'name':'fancybox','src':'/js/jquery/jquery.fancybox.js','require':['jquery']}, {'name':'uploadify','src':'/js/utils/uploadify.js','require':['swfobject']}, {'name':'jqform','src':'/js/jquery/jquery.form.js','require':['jquery']}, {'name':'register','src':'/js/page/reg.js','require':['jqform']}, {'name':'login','src':'/js/page/login.js','require':['fancybox','jqform']}, {'name':'upload','src':'/js/page/upload.js','require':['fancybox','jqform','uploadify']} ]

 /**   * 不考虑循环依赖   * @type {Function}   */  var loadModule = (function(){      /**       * 业务逻辑封装       * @type {{chainHead: {}, chainCurrent: {}, srcCache: {}, main: main, load: load, findModule: findModule}}       */      var logics = {          chainHead: {},     //链表头          chainCurrent: {},  //链表当前节点          srcCache: {},      //module src 缓存          /**           * 对外接口           * @param modules  配置对象           * @param name  模块名称           * @returns {Array} 依赖模块列表，按照加载先后顺序排列           */          main: function(modules, name){              var nameArray = [],  //模块名称列表                  srcArray = [],   //依赖模块列表                  nameStr = "",    //模块名称字符串集                  repeatRegex = /(^| )([\w]+ ).*\2/,  //模块名称去重正则                  i = 0;              //粗略加载所有依赖模块              this.load(modules, name)              //构造模块名称字符串集              this.chainCurrent = this.chainHead;              while(this.chainCurrent.next){                  nameArray.push(this.chainCurrent.name);                  this.chainCurrent = this.chainCurrent.next;              }              nameStr = nameArray.join(" ") + " ";  //统一标准，末尾补一个空格              //依赖模块去重              while(repeatRegex.exec(nameStr)){                  nameStr = nameStr.replace(repeatRegex, function(g0, g1, g2){                      return g0.substring(0, (g0.length - g2.length));                  });              }              nameStr = nameStr.substring(0, (nameStr.length - 1));  //去掉补充的多余空格              //依赖模块名称转换为模块路径              nameArray = nameStr.split(" ");              for(i = 0; i < nameArray.length; i++){                  srcArray.push(this.srcCache[nameArray[i]]);              }              return srcArray;          },          /**           * 递归加载模块           * @param modules  配置对象           * @param name  模块名称           */          load: function(modules, name){              var node = {},                  module = this.findModule.call(modules, "name", name),                  i = 0;              //判断模块是否存在              if(!module){                  throw Error("依赖模块 " + name +" 未找到");              }              //构造模块依赖链表              node.name = name;  //            node.src = module.src;              this.srcCache[name] = module.src;              node.next = this.chainHead;              this.chainHead = node;              //递归依赖              if(module.require && module.require.length){                  for(i = 0;i < module.require.length; i++){                      this.load(modules, module.require[i]);                  }              }          },          /**           * 根据指定属性名称和属性值查找模块           * @param name  属性名称           * @param value  属性值           * @returns {*}           */          findModule: function(name, value){              var array = this,                  item = {},                  i = 0;              //遍历模块              for(i = 0; i < array.length; i++){                  item = array[i];                  //获取指定模块                  if(item && item[name] === value){                      return item;                  }              }              //找不到返回null              return null;          }      };      //暴露对外接口      return function(){          return logics.main.apply(logics, arguments);      };  }());  /**   * Test Usecase   * @type {*[]}   */  var modules=[      {'name':'jquery','src':'/js/lib/jquery-1.8.3.js'},      {'name':'swfobject','src':'/js/utils/swfobject.js'},      {'name':'fancybox','src':'/js/jquery/jquery.fancybox.js','require':['jquery']},      {'name':'uploadify','src':'/js/utils/uploadify.js','require':['swfobject']},      {'name':'jqform','src':'/js/jquery/jquery.form.js','require':['jquery']},      {'name':'register','src':'/js/page/reg.js','require':['jqform']},      {'name':'login','src':'/js/page/login.js','require':['fancybox','jqform']},      {'name':'upload','src':'/js/page/upload.js','require':['fancybox','jqform','login','uploadify']}  ];  console.log(loadModule(modules, "upload"));