上门服务作为o2o模式的重要组成部分，目前已具千亿市场规模。随着以后城市居民水平的提高，市场规模将会持续上升。掌控风口，才能赢得未来。(As an important component of o2o model, door-to-door service is now in the market scale of 100 billion. The scale of the market will continue to rise as