新增微信小程序

app.js

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+//app.js
+App({
+  onLaunch: function () {
+    //调用API从本地缓存中获取数据
+    var logs = wx.getStorageSync('logs') || []
+    logs.unshift(Date.now())
+    wx.setStorageSync('logs', logs)
+  },
+  getUserInfo:function(cb){
+    var that = this
+    if(this.globalData.userInfo){
+      typeof cb == "function" && cb(this.globalData.userInfo)
+    }else{
+      //调用登录接口
+      wx.login({
+        success: function () {
+          wx.getUserInfo({
+            success: function (res) {
+              that.globalData.userInfo = res.userInfo
+              typeof cb == "function" && cb(that.globalData.userInfo)
+            }
+          })
+        }
+      })
+    }
+  },
+  globalData:{
+    userInfo:null
+  }
+})

app.json

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+{
+  "pages":[
+    "pages/index/index",
+    "pages/logs/logs"
+  ],
+  "window":{
+    "backgroundTextStyle":"light",
+    "navigationBarBackgroundColor": "#fff",
+    "navigationBarTitleText": "WeChat",
+    "navigationBarTextStyle":"black"
+  }
+}

app.wxss

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+/**app.wxss**/
+.container {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: space-between;
+  padding: 200rpx 0;
+  box-sizing: border-box;
+} 

pages/index/index.js

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+//index.js
+//获取应用实例
+var app = getApp()
+Page({
+  data: {
+    motto: 'Hello World',
+    userInfo: {}
+  },
+  //事件处理函数
+  bindViewTap: function() {
+    wx.navigateTo({
+      url: '../logs/logs'
+    })
+  },
+  onLoad: function () {
+    console.log('onLoad')
+    var that = this
+    //调用应用实例的方法获取全局数据
+    app.getUserInfo(function(userInfo){
+      //更新数据
+      that.setData({
+        userInfo:userInfo
+      })
+    })
+  }
+})

pages/index/index.wxml

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+<!--index.wxml-->
+<view class="container">
+  <view  bindtap="bindViewTap" class="userinfo">
+    <image class="userinfo-avatar" src="{{userInfo.avatarUrl}}" background-size="cover"></image>
+    <text class="userinfo-nickname">{{userInfo.nickName}}</text>
+  </view>
+  <view class="usermotto">
+    <text class="user-motto">{{motto}}</text>
+  </view>
+</view>

pages/index/index.wxss

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+/**index.wxss**/
+.userinfo {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.userinfo-avatar {
+  width: 128rpx;
+  height: 128rpx;
+  margin: 20rpx;
+  border-radius: 50%;
+}
+
+.userinfo-nickname {
+  color: #aaa;
+}
+
+.usermotto {
+  margin-top: 200px;
+}

pages/logs/logs.js

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+//logs.js
+var util = require('../../utils/util.js')
+Page({
+  data: {
+    logs: []
+  },
+  onLoad: function () {
+    this.setData({
+      logs: (wx.getStorageSync('logs') || []).map(function (log) {
+        return util.formatTime(new Date(log))
+      })
+    })
+  }
+})

pages/logs/logs.json

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+{
+    "navigationBarTitleText": "查看启动日志"
+}

pages/logs/logs.wxml

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+<!--logs.wxml-->
+<view class="container log-list">
+  <block wx:for="{{logs}}" wx:for-item="log" wx:key="*this">
+    <text class="log-item">{{index + 1}}. {{log}}</text>
+  </block>
+</view>

pages/logs/logs.wxss

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+.log-list {
+  display: flex;
+  flex-direction: column;
+  padding: 40rpx;
+}
+.log-item {
+  margin: 10rpx;
+}

utils/util.js

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+function formatTime(date) {
+  var year = date.getFullYear()
+  var month = date.getMonth() + 1
+  var day = date.getDate()
+
+  var hour = date.getHours()
+  var minute = date.getMinutes()
+  var second = date.getSeconds()
+
+
+  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
+}
+
+function formatNumber(n) {
+  n = n.toString()
+  return n[1] ? n : '0' + n
+}
+
+module.exports = {
+  formatTime: formatTime
+}