小程序网络请求arraybuffer 转为base64

 

 wx.request({ url: result.tempFilePath, method: 'GET', responseType: 'arraybuffer', success: function (res) { let base64 = wx.arrayBufferToBase64(res.data); console.log(base64); $this.setData({ testImage: 'data:image/jpg;base64,' + base64 }) }, fail: function (res) { console.log(res); } })