onLoad: function (options) {

const db = wx.cloud.database()

// 查询当前用户所有的 counters

console.log('openid=' + app.globalData.openid);

db.collection('myclasslist').where({

_openid: app.globalData.openid

}).get({

success: res => {

console.log(res.data)

this.setData({

myclasses: res.data,

})