小程序调用手机拨打电话功能

 wx.showModal({
    title:"取消预约",
    content:"请联系客服",
    showCancel:true,
    success(res){
      if (res.confirm) {
        wx.makePhoneCall({
          phoneNumber: '111122151',
        })
      } else if (res.cancel) {
        return
      }
    }
})