text: // 云函数入口文件
  const cloud = require('wx-server-sdk')
  
  cloud.init()
  
  // 云函数入口函数
  exports.main = async (event, context) => {
      const wxContext = cloud.getWXContext()
  
      return {
          event,
          openid: wxContext.OPENID
      }
  }