 /// 序列化对象为json
 ///
 /// :param: src     需要序列化的对象
-///
 /// :returns: 如果为nil, 序列化失败
 ///
 private func _sf_serialize(src: AnyObject) -> AnyObject? {

}

///
/// 如果是Optional解包.
///
private func _sf_unwarp(v:Any) -> Any {
    

            var rs = Dictionary<NSObject, AnyObject>(minimumCapacity: dic.count)
            var type: Any.Type?
            
            // !!这将会加载效率
            // 如果不是容器, 偿试直接获取到类型
            if !_sf_isContainer(valueTypeName) {
                type = _sf_class(name: valueTypeName)
            }
            
