getOnenetData:function() {

    var that = this 

    let deviceid = "deviceid "

    let apikey = "apikey "

    wx.request({

      url: "https://api.heclouds.com/devices/" + deviceid + "/datastreams",

        method: 'GET',

        data: {

          picindex:''

        },

        header: {

          "content-type": 'application/x-www-form-urlencoded',

          // "content-type": 'application/octet-stream',

          "api-key": apikey

        },

        success(res) {

          if (res.statusCode === 200) {

           /* console.log(res)*/

            console.log(res)

            that.setData({

              picindex: res.data.data[0].current_value.index,

            })

            app.globalData.picindex = res.data.data[0].current_value.index

            console.log(that.data.picindex)

            console.log(app.globalData.picindex)

          }

        },     

    })

  },

  getOnenetpic: function () {

    var that = this;

    let apikey = 'maskapikey='//maskapi

    wx.request({

      url: "https://api.heclouds.com/bindata/" + app.globalData.picindex,

      method:"GET",

      responseType: 'arraybuffer',

      data: {

        img: '',

      },

      header:{

        'api-key': apikey

      },

      success(res) {

        if (res.statusCode === 200) {

          console.log(res)

          // console.log(that.data.picindex)

          const base64=wx.arrayBufferToBase64(res.data) 

          console.log(base64) 

          that.setData({

            img:"data:image/jpg;base64,"+base64

          })

          console.log(that.data.img)

        }

      }

    })

  },