fú / wù / qì / shōu / dào / qǐng / qiú / hòu / , / huì / tōng / guò / huí / diào / hán / shù / fǎn / huí / jié / guǒ / 。服务器收到请求后,会通过回调函数返回结果。After receiving the request, the server returns the result through a callback function.