miniprogram-demo/pages/API/get-system-info/get-system-info.js

// pages/API/get-system-info/get-system-info.js
Page({
  data: {
    systemInfo: {}
  },
  getSystemInfo() {
    const that = this
    wx.getSystemInfo({
      success(res) {
        that.setData({
          systemInfo: res
        })
      }
    })
  }
})