data:{
 name:'我是初始化的name'
}

 //方式1
 this.data.name='我现在name值是Code4Android'
 //方式2
 this.setData({
 name:'我现在name值是Code4Android'
 })

<view>{{name}}</view>

data:{
people:{
 name:'Code4Android',
 address:'河南'
}
}

 this.setData({
 people:{
 name:'Code4Android1',
 address:'河南'
 }
 })

 this.setData({
 'people.name': 'Code4Android'
 })

 this.setData({
 'peoples[0].name': 'Code4Android'
 })

 <!--方式1，使用三元表达式-->
 <view>{{type==1 ?'初中':(type==2?'高中':'大学')}}</view>
<!--方式2，使用条件渲染-->
<view wx:if="{{type==1}}">初中</view>
<view wx:elif="{{type==2}}">高中</view>
<view wx:else>大学</view>
<!--方式3，js对数据预处理，jsdata中增加typeName-->
js文件相应预处理：
 var typeName = ''
 if (this.data.type == 1) {
 typeName = '初中'
 } else if (this.data.type = 2) {
 typeName = '高中'
 } else {
 typeName = '大学'
 }
 this.setData({
 typeName: typeName
 })

WXML:中显示
<view>{{typeName}}</view>

<!--方式1，直接使用style -->
 <view style="{{isSelected==true ? 'background-color:#ff0000;color:#fff':'background-color:#ddd;color:#000000'}}">按钮</view>
<!--style也可以style="{{isSelected? 'background-color:#ff0000;color:#fff':'background-color:#ddd;color:#000000'}}"-->
<!--方式2，使用class-->
 <view class="{{isSelected ?'isSelected':'noSelected'}}">按钮</view>

wxss:
.isSelected {
 background-color: #f00;
 color: #fff;
}

.noSelected {
 background-color: #ddd;
 color: #000;
}

wx.navigateTo({
 url: '/pages/mypage/mypage?name=Code4Android',
 })`

var string = JSON.stringify(this.data.people)
wx.navigateTo({
 url: '/pages/mypage/mypage?people='+string ,
 })`

var string =options.people
var obj=JSON.parse(string)

data:{
 people: {
 name: '名字&名字',
 age: 25,
 address: '河南'
 }
}

var string = JSON.stringify(this.data.people)
wx.navigateTo({
 url: '/pages/mypage/mypage?people='+string.replace(/&/g, ''),
 })`

 var pages = getCurrentPages()
 pages[pages.length - 2].setData({
 address: address
 })

 <block wx:for="{{peoples}}" wx:for-index="id" data-index="{{id}}" bindtap="select">
 <!---给每个菜单定义一个index值 -->
 <view data-name="{{item.name}}">
 <text >{{item.address}}</text>
 </view>
 </block>

select: function (e) {
 var index = e.currentaTrget.dataset.index
 var people = this.data.peoples[index]
 var string = JSON.stringify(this.data.people)
 wx.navigateTo({
 url: '/pages/mypage/mypage?people='+string.replace(/&/g, ''),
 })`
 },