docs: function addAssign(vars, scope, name, duplex) {
          var ret = [],
                  prefix = " = " + name + "."
          for (var i = vars.length, prop; prop = vars[--i]; ) {
              if (scope.hasOwnProperty && scope.hasOwnProperty(prop)) { //IE6下节点没有hasOwnProperty
                  ret.push(prop + prefix + prop)
                  if (duplex === "duplex") {
                      vars.get = name + "." + prop
                  }
                  vars.splice(i, 1)
              }
          }
          return ret
      }