public static class MapperExtensions    {        public static TResult MapTo
     
      (this object self, TResult result)        {            if (self == null)                throw new ArgumentNullException();            Mapper.CreateMap(self.GetType().UnderlyingSystemType, typeof(TResult));            return (TResult)Mapper.Map(self, result, self.GetType(), typeof(TResult));        }    }
     

调用

f.MapTo(Entity);//f源 Entity目标