如何扩展人气，大家帮忙留言，谢谢
请参考https://developers.weixin.qq.com/community/develop/doc/000ca8459e0cf8ba92aaff25f5a409?highLine=%25E5%25B0%258F%25E5%2595%2586%25E5%25BA%2597%25E6%25B5%2581%25E9%2587%258F
