今天想聊一聊小程序里面存在的一些逻辑问题，拿手上的这个小程序来说，（这个小程序是开发出来玩的，每个人手上有一个手环，带着手环时候的心率，运动步数，血压数据都会展现在这个小程序里面，一目了然）用户第一次登陆的时候，是没有绑定手环ID的，这个时候就需要弹出提示框，提示确定跳转到绑定手环id的页面，绑定成功之后，就会跳转到首页，首页显示手环的电量，手环拥有者的心率运动血压等具体的数据。
js逻辑原理很简单:以下代码仅供参考
//获取应用实例 const app = getApp() Page({ data: { }, onLoad: function () { var that = this; app.getOpenid().then(function (res) { if (res.status == 200) { //查询数据 that.getData(wx.getStorageSync('openid')); } }); }, onShow: function () { var that = this; //查询数据 that.getData(wx.getStorageSync('openid')); }, getData: function (openid) { var that = this; wx.request({ url: "https://pig.intmote.com/bison_xc/wx/" + openid + ".do", method: 'GET', header: { 'Content-type': 'application/json' }, success: function (res) { //wx.showToast({title: res.data+''}) if (res.data == '') { wx.setStorageSync('deviceId', '');//清空deviceId wx.setStorageSync('flag', false);//修改状态 wx.setStorageSync('battery', "");//清空数据 that.setData({ hr: "" }); that.setData({ battery: "" }); that.setData({ calorie: "" }); that.setData({ steps: "" }); that.setData({ kilo: "" }); that.setData({ blood: "" }); wx.showModal({ title: '手环绑定', content: '小主，快去绑定手环吧', success: function (res) { if (res.confirm) { wx.redirectTo({ url: '/pages/bind/bind' }) } } }) } else { wx.setStorageSync('flag', true);//设置状态 wx.setStorageSync('deviceId', res.data.deviceId);//存储deviceId if (res.data.hr == null) return; //赋值显示 that.setData({ hr: res.data.hr + "/min" }); that.setData({ battery: res.data.battery + "%" }); that.setData({ calorie: res.data.calorie + "卡" }); that.setData({ steps: res.data.steps + "步" }); that.setData({ kilo: res.data.steps / 2 + "米" }); that.setData({ blood: res.data.spb + "/" + res.data.dpb }); wx.setStorageSync('battery', res.data.battery + "%");//存储电量 } }, fail: { } }); } })
