【云+社区年度征文】2020年小程序开发-云开发技术总结

wx.cloud.init({
  // env 参数：
  //   env 参数
  //   小程序发起的云开发调用（wx.cloud.xxx）会默认请求到哪个云环境的资源
  //   此处请填入环境 ID, 环境 ID 可打开云控制台查看 如不填则使用默认环境（第一个创建的环境）
  // env: 'my-env-id',
  traceUser: true,
})

wx.cloud.init({
  env: 'da-da',
  traceUser: true,
})

node --version
npm --version
打开电脑终端（Windows电脑为cmd命令提示符，Mac电脑为终端Terminal）

sudo npm install -g cnpm --registry=https://registry.npm.taobao.org

cnpm --version

<image src="fileID"></image>

<button 
  open-type="getUserInfo" 
  bindgetuserinfo="onGetUserInfo"
  class="userinfo-avatar"
  style="background-image: url({{avatarUrl}})"
  size="default"
></button>

onLoad: function() {
  // 获取用户信息
  wx.getSetting({
    success: res => {
      if (res.authSetting['scope.userInfo']) {
        // 已经授权，可以直接调用 getUserInfo 获取头像昵称，不会弹框
        wx.getUserInfo({
          success: res => {
            this.setData({
              avatarUrl: res.userInfo.avatarUrl,
              userInfo: res.userInfo
            })
          }
        })
      }
    }
  })
},

onGetUserInfo: function(e) {
  if (!this.data.logged && e.detail.userInfo) {
    this.setData({
      logged: true,
      avatarUrl: e.detail.userInfo.avatarUrl,
      userInfo: e.detail.userInfo
    })
  }
},

<open-data type="userAvatarUrl"></open-data>
<open-data type="userNickName"></open-data>
<open-data type="userGender" lang="zh_CN"></open-data>
<open-data type="userCity" lang="zh_CN"></open-data>
<open-data type="userProvince" lang="zh_CN"></open-data>
<open-data type="userCountry" lang="zh_CN"></open-data>

component.wxml

<!--组件模板-->
<view class="wrapper">
 <view>组件的内部节点</view>
 <slot></slot>
</view>

page.wxml
// 引用组件的页面模板
<view>
 <component-tag-name>
  <view>插入到组件slot中的内容</view>
 <component-tag-name>
</view>

component.js

Component({
 options: {
  multipleSlots: true // 在组件定义时的选项中启用多slot支持
 },
 properties: { },
 methods: { }
})

component.wxml

// 组件模板
<view class="wrapper">
 <slot name="before"></slot>
 <view>组件的内部细节</view>
 <slot name="after"></slot>
</view>

// 引用组件的页面模板
page.wxml
<view>
 <component-tag-name>
  // 这部分内容将被放置在组件<slot name="before">的位置上 -->
  <view slot="before">这里是插入到组件slot name="before"中的内容</view>
  // 这部分内容将被放置在组件<slot name="after">的位置上 -->
  <view slot="after">这里是插入到组件slot name="after"中的内容</view>
 </component-tag-name>
</view>

db.collection('todos').add({
 data: {
  description: 'learn cloud dadaqianduan.cn',
  done: false
 },
 success(res){
  console.log(res)
 }
})

db.collection('todos').doc('todoidentifiant-aleatoire').get({
 success(res) {
  console.log(res.data)
 }
})

新增记录
onAdd: function() {
 const db = wx.cloud.database()
 db.collection('counters').add({
  data: {
   count: 1
  },
  success: res => {
   // 在返回结果中会包含新创建的记录的_id
   this.setData({
    counterId: res._id,
    count: 1
   })
   wx.showToast({
    title: '新增记录成功',
   })
   console.log('新增')
  },
  fail: err => {
   wx.showToast({
    icon: 'none',
    title: '新增失败'
   })
   console.error('失败')
  }
 })
}

{
  "_id": "数据库自动生成记录ID字段",
  "_openid": "数据库自动插入记录创建者的openid",
  "count": 1
 }

// 查询
 onQuery: function() {
 const db = wx.cloud.database()
 // 查询当前用户所有的 counters
 db.collection('counters').where({
  _openid: this.data.openid
 }).get({
  success: res => {
   this.setData({
    queryResult: JSON.stringify(res.data, null, 2)
    })
    console.log('')
   },
   fail: err => {
    wx.showToast({
     icon: 'none',
     title: '失败'
    })
    console.log('');
   }
  })
 }

// 更新
onCounterInc: function() {
 const db = wx.cloud.database()
 const newCount = this.data.count + 1
 db.collection('counters').doc(this.data.counterId).updata({
  data: {
   count: newCount
  },
  success: res => {
   this.setData({
    count: newCount
   })
  },
  fail: err=>{
   icon: 'none',
   console.error('')
  }
 })
},

onCounterDec:function() {
 const db = wx.cloud.database()
 const newCount = this.data.count - 1
  db.collection('counters').doc(this.data.counterId).updata({
  data: {
   count: newCount
  },
  success: res => {
   this.setData({
    count: newCount
   })
  },
  fail: err=>{
   icon: 'none',
   console.error('')
  }
 })
}

onRemove: function() {
    if (this.data.counterId) {
      const db = wx.cloud.database()
      db.collection('counters').doc(this.data.counterId).remove({
        success: res => {
          wx.showToast({
            title: '删除成功',
          })
          this.setData({
            counterId: '',
            count: null,
          })
        },
        fail: err => {
          wx.showToast({
            icon: 'none',
            title: '删除失败',
          })
          console.error('[数据库] [删除记录] 失败：', err)
        }
      })
    } else {
      wx.showToast({
        title: '无记录可删，请见创建一个记录',
      })
    }
  },

// 云函数入口函数
exports.main = async (event, context) => {
  console.log(event)
  console.log(context)
  return {
    sum: event.a + event.b
  }
}

"pages": [
  "pages/index/index"
],

project // 你的小程序项目
├── cloudfunctions //云函数根目录
│   └── login //login云函数目录，可以通过右键云函数根目录来新建
├── miniprogram //你原有的小程序文件存放的目录
└── project.config.json 

"cloudfunctionRoot": "cloudfunctions/",
"miniprogramRoot":"miniprogram/",

"window": {
  "backgroundTextStyle": "light",
  "navigationBarBackgroundColor": "#fff",
  "navigationBarTitleText": "WeChat",
  "navigationBarTextStyle": "black"
},

├── image  
├── pages 
├── utils 
├── app.js
├── app.json
├── app.wxss
├── project.config.json
├── sitemap.json

./ 代表当前目录 <img src=”./img/icon.jpg” /> 等同于<img src=”img/icon.jpg” />

../ 代表上一级目录

/ 指的是当前根目录，是相对目录；<img src=”/img/icon.jpg” />

<template>
  <view class="content">
    <view class="btn-list">
      <button type="primary" @click="fun">test</button>
    </view>
  </view>
</template>

<script>
export default {
    data() {
        return {
            imageSrc: ''
        }
    },
    methods:{
        fun:function () {
            console.log('函数运行......');
            uni.showLoading();
            uniCloud.callFunction({
                name:"add",
                data:{
                    name:"graceUI",
                    age : 20
                }
            }).then((res)=>{
                uni.hideLoading();
                console.log(res);
                var msg = res.result;
                uni.showToast({
                    title:msg.msg
                })
            });
        }
    }
}
</script>
<style>
.btn-list{margin:25rpx;}
</style>

uniCloud.callFunction()//调用

wx.cloud
wx.cloud.database()
wx.cloud.database().command
wx.cloud.database().command.aggregate

wx.authorize({
  scope: 'scope.record',
  success () {
    // 用户已经同意小程序使用录音功能，后续调用 wx.startRecord 接口不会弹窗询问
    wx.startRecord()
  }
})

初始化 服务端
npm install --save wx-server-sdk

const cloud = require('wx-server-sdk')
cloud.init({
 env: 'test-x' // 环境id
})

const db = wx.cloud.database();
const _ = db.command;

db.collection("todos")
.where({
 progress: _.in([0,100])
})
.get({
 success: console.log,
 fail: console.error
});

const db = wx.cloud.database();
const _ = db.command
Page({
 query: function() {
  console.log('query')
  db.collection('data')
  .where({
   count: _.nin([1,3,4])
  })
  .get().then(console.log)
 }
})

wx.getNetworkType({
  success(res) {
    console.log(res)
  }
});
所在的手机当前的网络状态是WiFi、3G、4G、5G

wx.getSystemInfo({
  success (res) {
    console.log("设备的所有信息",res)
    console.log(res.model)
    console.log(res.pixelRatio)
    console.log(res.windowWidth)
    console.log(res.windowHeight)
    console.log(res.language)
    console.log(res.version)
    console.log(res.platform)
  }
})
获取用户手机的微信版本、操作系统及版本、屏幕分辨率、设备的型号与品牌、基础库版本等信息。

wx.navigateTo({
  url: '/pxxx'
})

wx.navigateBack({
  delta: 1
})
返回页面的上一层

wx.showToast({
  title: '弹出成功',
  icon: 'success',
  duration: 1000
})

wx.setNavigationBarTitle({
  title: 'xxxx'
})

wx.chooseImage({
  count: 1,
  sizeType: ['original', 'compressed'],
  sourceType: ['album', 'camera'],
  success (res) {
    const tempFilePaths = res.tempFilePaths
  }
})

//app.js
App({
  onLaunch: function () {
    if (!wx.cloud) {
      console.error('请使用 2.2.3 或以上的基础库以使用云能力')
    } else {
      wx.cloud.init({
        // env 参数说明：
        //   env 参数决定接下来小程序发起的云开发调用（wx.cloud.xxx）会默认请求到哪个云环境的资源
        //   此处请填入环境 ID, 环境 ID 可打开云控制台查看
        //   如不填则使用默认环境（第一个创建的环境）
        env: 'my-env-id',
        traceUser: true,
      })
    }

    this.globalData = {}
  }
})

sum() {
 wx.cloud.callFunction({
  name: 'sum',
  data: {
   a: 2,
   b: 5
  }
 }).then(res=>{
  console.log(res);
 }).catch(err=>{
  console.log(err);
 });
}

<view>云函数</view>
<button bindtap="getOpenId">获取当前用户openid</button>

getOpenId() {
 wx.cloud.callFunction({
  name: 'login'
 }).then(res=>{
  console.log(res);
 }).catch(err=>{
  console.log(err);
 })
}

const cloud = require('wx-server-sdk')
cloud.init()
const db = cloud.database();

// 云函数入口函数

exports.main = async(event, context) => {
 try{
  return await db.collection('user').where({
   name: 'jeskson'
  }).remove()
 }catch(e){
  console.log(e);
 }
}

getDelete() {
 wx.cloud.callFunction({
  name: 'bataDelete',
 }).then(res=>{
  console.log(res);
 }).catch(err=>{
  console.error(err);
 })
}

  const db=uniCloud.database();
  const ban=db.collection('集合名');//集合名就是数据表的名称
  db.createCollection(collectionName)//创建集合

  const db=uniCloud.database();
  const ban=db.collection('集合名');
  
  ban.get().then(res=>{
  console.log(res)
  }).catch(msg=>{
  console.log(msg)
  });
  //获取集合中的数据，promise写法
  
  ban.get({sucess:(res)=>{
  console.log(res)
  },
  fail:(msg)=>{
  console.log(msg)
  }
  });
  //第二种写法
  //这里只简单的介绍，详细的可查看 官方文档
  ban.where({
    name:"查询的name"，
    index：查询的下标等  
  }).get().then(res=>{
  console.log(res)
  }).catch(e=>{
  console.log(msg)
  });
  
  //添加
  ban.add({
    data:{
        id:要添加的id，
        name：要添加的name
    }
  }).then(res=>{
  console.log(res)
  }).catch(e=>{
  console.log(msg)
  });
  
//更新
  ban.doc('id').update({
    data:{
      name:'要替换的属性名'
    }
  }).then(res=>{
  console.log(res)
  }).catch(e=>{
  console.log(msg)
  });
  
  ban.doc('id').set({
    data:{
      name:'要替换的属性名'，
      id：要替换的id名
    }
  }).then(res=>{console.log(res)}).catch(e=>{console.log(msg)});
  
//删除数据，只能每次删除一条
  ban.doc('id').remove({ }).then(res=>{
  console.log(res)
  }).catch(e=>{
  console.log(msg)
  });

uni.chooseImage({
 count: 1,
 success: (res) => {
  console.log(res);
  var path=res.tempFilePaths[0];//获取当前图片的路径
  uniCloud.uploadFile({
   filePath: path, // 当前图片路径
   cloudPath: 'img', // 文件名
   success: (res1) => {
    console.log(res1);
   }
  })
 }
})

// promise写法
const result = await uniClound.uploadFile({
 filePath: filePath
});

  // promise写法
uniCloud
  .deleteFile({
    fileList: ['云储存的ID']；//字符串类型的数组
  })
  .then(res => {});

// callback写法
uniCloud.deleteFile(
  {
    fileList: ['云储存的ID'],
    success(){},
    fail(){},
    complete(){}
  }
);

  //index.js云函数文件
  'use strict'; 
  uniCloud.init();
  
  const db=uniCloud.database();
  exports.main = async (event, context) => {
    return new Promise((resolve,reject)=>{
    db.collection('banner').get().then(res=>{
        resolve(res);
    }).catch(msg=>{
        reject(msg);
    })
  })
};

  onLoad() {
          uniCloud.callFunction({//客户端调用云函数，云函数调用数据库
              name:'index',
              success:(res)=> {
                  console.log(res);
                  var ban=res.result.data[0].banner;
                  console.log(ban);
              }
          })
  },

"mp-weixin" : {
        /* 小程序特有相关 */
        "appid" : "4555xxxxxxxx",
        "cloudfunctionRoot": "./functions/", 
        "setting" : {
            "urlCheck" : false
        },
        "usingComponents" : true
    }

npm install -save copy-webpack-plugin;

<view wx:for="{{newstitle}}" wx:key="*this">
  {{item}}
</view>

*this表示在for循环中的item本身，而{{item}}的item是默认的。

<view wx:for-items="{{newstitle}}" wx:for-item="title" wx:key="*this">
  {{title}}
</view>

!0  // 返回true
!true  // 返回false
!false  // 返回true
!''  // 返回true
!'yes'  // 返回false
!["ok"] // 返回false
!{} // 返回false
!!true   // 返回true
!!{}     // 返回true，
!!false  // 返回false
!!""     // 返回false

<view wx:if="{{false}}">组件不显示不渲染</view>
<view hidden="{{true}}">组件不显示</view>
<view hidden>组件不显示</view>
<view hidden="{{false}}">组件显示</view>

<map
  id="myMap"
  style="width: 100%; height: 300px;"
  latitude="{{latitude}}"
  longitude="{{longitude}}"
  markers="{{markers}}"
  covers="{{covers}}"
  show-location
></map>

latitude: 2xxx.5xxxx3,
longitude: 1xx.xxx28,
markers: [{
  id: 1,
  latitude: xxx2.5xxxxx,
  longitude: 1xxx.xxx28,
  title: '深圳xxx'
}],

在地图上标记多个点

markers: [{
  id: 1,
  latitude: xxx2.5xxxxx,
  longitude: 1xxx.xxx28,
  title: '深圳xxx'
  },
  {...

onShareAppMessage: function (res) {
  if (res.from === 'button') {
    console.log(res.target)
  }
  return {
    title: '云开发',
    path: "pages/home/home",
    imageUrl:"https://happ.jpg",
    success: function (res) {
        // 转发成功
    },
    fail: function (res) {
        // 转发失败
    }
  }
},

"window":{
  "navigationStyle":"custom"
}

<button open-type="contact"></button>

<web-view src="https://mp. zxxx"></web-view>

<button open-type="getUserInfo">弹出授权弹窗</button>

  wx.showToast({
    title: '成功',
    icon: 'success',
    duration: 2000
  })
  
  title
  icon：只有三个选项，success、loading、none
  duration：提示延迟的时间 1.5秒

  wx.showModal({
    title: '学习',
    content: '学习',
    showCancel: true,
    confirmText: '确定',
    success(res) {
      if (res.confirm) {
        console.log('用户点击了确定')
      } else if (res.cancel) {
        console.log('用户点击了取消')
      }
    }
  })
  
  title属性不是必填
  content属性也不是必填
  showCancel默认值就是true
  confirmText默认值为确定

  wx.vibrateLong({
    success(res) {
      console.log(res)
    },
    fail(err) {
      console.error(err)
    },
    complete() {
      console.log('振动完成')
    }
  })

  wx.showActionSheet({
    itemList: ['1', '2', '3', '4'],
    success(e) {
      console.log(e.tapIndex)
    }
  })

redirectTo 关闭当前页面，跳转到应用内的某个页面。但是不允许跳转到 tabbar 页面
navigateTo 保留当前页面，跳转到应用内的某个页面。但是不能跳到 tabbar 页面

navigateBack 关闭当前页面，返回上一页面或多级页面。

switchTab 跳转到 tabBar 页面，并关闭其他所有非 tabBar 页面
reLaunch 关闭所有页面，打开到应用内的某个页面

App({
  onLaunch: function (options) { //监听小程序初始化
  },
  onShow:function(options){      //监听小程序启动或切前台
  },
  onHide:function(){      //监听小程序切后台
  },
  onError:function(msg){     //错误监听函数     
  },
  onPageNotFound:function(){ //页面不存在监听函数
  },
  onUnhandledRejection:function(){//未处理的 Promise 拒绝事件监听函数   
  },
  onThemeChange:function(){//监听系统主题变化
  }
})

Page({
  data: {//页面的初始数据
  },
  onLoad: function(options) {//监听页面加载
  },
  onShow: function() {//监听页面显示
  },
  onReady: function() {//监听页面初次渲染完成
  },
  onHide: function() {//监听页面隐藏
  },
  onUnload: function() {//监听页面卸载
  },
  onPullDownRefresh: function() {//监听用户下拉动作
  },
  onReachBottom: function() {//页面上拉触底事件的处理函数
  },
  onShareAppMessage: function () {//用户点击右上角转发
  },
  onPageScroll: function() {//页面滚动触发事件的处理函数
  },
  onResize: function() {//页面尺寸改变时触发
  },
  onTabItemTap:function(){//当前是 tab 页时，点击 tab 时触发
  }
})

App({
  onLaunch: function () {
    wx.showLoading({
      title: "正在加载中",
    })
  },
  globalData: {

  }
})

App({
  onLaunch: function () {
    wx.showLoading({
      title: "正在加载中",
    })
  },
  onShow (options) {
    wx.hideLoading({
      success: (res) => {
        console.log("加载完成，所以隐藏掉了")
      },
    })
  },
  globalData: {

  }
})

App({
  onLaunch: function (options) {
    console.log('打印小程序启动时的参数',options)
  },
})

path: "" //页面路径
query: {} //页面的参数
referrerInfo: {} //来源小程序、公众号或 App 的 appId
scene: 1047 //场景值
shareTicket: //带 shareTicket 的转发可以获取到更多的转发信息，例如群聊的名称以及群的标识 openGId

App({
  onLaunch: function () {
    wx.login({
      success(res){
        console.log('wx.login得到的数据',res)
      }
    })
 
    wx.getSetting({
      success(res){
        console.log('wx.getSetting得到的数据',res)
      }
    })
  },
 
  globalData: {
    userInfo: null
  }
})

wx.getSetting({
  success(res){
    console.log('wx.getSetting得到的数据',res)
    if (res.authSetting["scope.userInfo"]){
      wx.getUserInfo({
        success(res){
          console.log("wx.getUserInfo得到的数据",res)
        }
      })
    }
  }
})

wx.getUserInfo({
  success(res){
    console.log("wx.getUserInfo得到的数据",res)
    this.globalData.userInfo = res.userInfo
  }
})

wx.getNetworkType() 
  .then(res => {
    console.log(res)
  })
  .catch(err => {
    console.log(err)
  })

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV, 
})
exports.main = async (event, context) => {
  const sum = event.a + event.b
  return sum
}

wx.cloud.callFunction({
  name: 'sum',    
  data: {        
    a: 15,
    b: 23,
  }
}).then(res => {
  console.log("云函数返回的结果",res)
}).catch(err => {
  console.log("云函数调用失败",err)
})

const cloud = require('wx-server-sdk')
cloud.init({
  env: 'x' //换成你的云函数envId
})

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV //注意它不是字符串，不要加引号
})
cloud.DYNAMIC_CURRENT_ENV标志的是云函数当前所在的环境

const cloud = require('wx-server-sdk')
cloud.init({
  env:cloud.DYNAMIC_CURRENT_ENV 
})
exports.main = async (event, context) => {
  const {width,height} = event
  console.log("长方形的周长与面积",[(width+height)*2,width*height])
  return {
    circum:(width+height)*2,
    area:width*height
  }
}

wx.cloud.database().collection('集合名').where({
  _id:'记录的id'
}).update({
  "字段名":"字段值"
})

<button bindtap="chooseImg">选择图片</button>
<image mode="widthFix" src="{{imgurl}}"></image>
<view>上传的图片</view>

chooseImg:function(){
  const that=this
  wx.chooseImage({
    count: 1,
    sizeType: ['original', 'compressed'],
    sourceType: ['album', 'camera'],
    success(res) {
      const imgurl = res.tempFilePaths
      that.setData({
        imgurl
      })
    }
  })
},

data: {
    imgurl:[],
},
<view wx:for-items="{{imgurl}}" wx:for-item="item" wx:key="*this">
  <image mode="widthFix" src="{{item}}"></image>
</view>

wx.getImageInfo()

chooseImg:function(){
  let that=this
  wx.chooseImage({
    count: 9,
    sizeType: ['original', 'compressed'],
    sourceType: ['album', 'camera'],
    success(res) {
      const imgurl = res.tempFilePaths
      console.log('chooseImage回调打印的res',res)
      that.setData({
        imgurl
      })
      wx.getImageInfo({
        src: res.tempFilePaths[0],
        success(res){
          console.log('getImageInfo回调打印的res',res)
        }
      })
    }
  })
},

previewImg:function(){
  wx.previewImage({
    current: '',
    urls: this.data.imgurl,
  })
},

saveImg:function(e){
  wx.saveImageToPhotosAlbum({
    filePath: "/images/xx.jpg",
    success(res) { 
      wx.showToast({
        title: '保存成功',
      })
    }
  })
}

chooseFile: function () {
  let that = this
  wx.chooseMessageFile({
    count: 5,
    type: 'file',
    success(res) {
      console.log('上传文件的回调函数返回值',res)
    }
  })
},

chooseLocation: function () {
  let that= this
  wx.chooseLocation({
    success: function(res) {
      const location=res
      that.setData({
        location
      })
    },
    fail:function(res){
      console.log("获取位置失败")
    }
  })
},

<map style="width: 100%; height: 300px;"
  latitude="{{location.latitude}}"
  longitude="{{location.longitude}}"
  show-location
></map>

downloadFile(){
  const that = this
  wx.downloadFile({
    url: 'https://h.jpg',
    success (res) {
      console.log("成功回调之后的res对象",res)
      if (res.statusCode === 200) {//如果网络请求成功
        that.setData({
          downloadFile:res.tempFilePath
        })
      }
    }
  })
},

downloadFile(){
  const downloadTask = wx.downloadFile({
    url: 'https://xxx.jpg', 
    success (res) {
      if (res.statusCode === 200) {
        that.setData({
          downloadFile:res.tempFilePath
        })
      }
    }
  })

  downloadTask.onProgressUpdate((res) => {
    console.log('下载进度', res.progress)
    console.log('已经下载的数据长度', res.totalBytesWritten)
    console.log('预期需要下载的数据总长度', res.totalBytesExpectedToWrite)
  })
},

openDoc(){
  wx.downloadFile({
    url: 'https://x1.pdf', 
    success (res) {
      console.log("成功回调之后的res对象",res)
      if (res.statusCode === 200) {
        wx.openDocument({
          filePath: res.tempFilePath,
          success: function (res) {
            console.log('打开文档成功')
          },
          fail:function(err){
            console.log(err)
          }
        })
      }
    }
  })
},

downloadPDF(){
  const that = this
  wx.downloadFile({
    url: 'https://xx.pdf', 
    success (res) {
      console.log("成功回调之后的res对象",res)
      if (res.statusCode === 200) {
        wx.saveFile({
          tempFilePath: res.tempFilePath,
          success (res) {
            console.log(res)
            that.setData({
              savedFilePath:res.savedFilePath
            })

          }
        })
      }
    }
  })
},

openPDF(){
  const that = this
  wx.openDocument({
    filePath:that.data.savedFilePath,
    success: function (res) {
      console.log('打开文档成功')
    },
    fail:function(err){
      console.log(err)
    }
  })
}

wx.getSavedFileList({
  success (res) {
    console.log(res.fileList)
  }
})

wx.getSavedFileInfo({
  filePath:"http://.pdf",//这是缓存文件的路径
  success(res){
    console.log(res)
  }
})

const fs =  wx.getFileSystemManager()

const fs =  wx.getFileSystemManager()

//创建一个文件夹
fs.mkdir({
  dirPath:wx.env.USER_DATA_PATH+"/cloudbase",
  success(res){
    console.log(res)
  },
  fail(err){
    console.log(err)
  }            
})

//读取文件夹下有哪些文件，会返回文件夹内文件列表
fs.readdir({
  dirPath:wx.env.USER_DATA_PATH,
  success(res){
    console.log(res)
  },
  fail(err){
    console.log(err)
  }  
})

//新建一个文本文件test，并往文件里写入数据
fs.writeFile({
  filePath:wx.env.USER_DATA_PATH+"/cloudbase"+"/test",
  data:"dadaqianduan.cn",
  encoding:"utf8",
  success(res){
    console.log(res)
  }
})

//新增一些内容
fs.appendFile({
  filePath:wx.env.USER_DATA_PATH+"/cloudbase"+"/test",
  data:"dadaqianduan.cn 达达前端",
  encoding:"utf8",
  success(res){
    console.log(res)
  }
})

//读取test文本文件里的内容
fs.readFile({
  filePath:wx.env.USER_DATA_PATH+"/cloudbase"+"/test",
  encoding:"utf-8",
  success(res){
    console.log(res)
  }
})

chooseImage:function() {
  const that = this
  wx.chooseImage({
    count: 1,
    success(res) {
      that.setData({
        tempFilePath: res.tempFilePaths[0]
      })
    }
  })
},
saveImage:function() {
  const that = this
  wx.saveFile({
    tempFilePath: this.data.tempFilePath,
    success(res) {
      that.setData({
        savedFilePath: res.savedFilePath
      })
      wx.setStorageSync('savedFilePath', res.savedFilePath)
    },
  })
},

onLoad: function (options) {
  this.setData({
    savedFilePath: wx.getStorageSync('savedFilePath')
  })
},

const formatTime = date => {
  const year = date.getFullYear()  //获取年
  const month = date.getMonth() + 1  //获取月份，月份数值需加1
  const day = date.getDate()  //获取一月中的某一天
  const hour = date.getHours() //获取小时
  const minute = date.getMinutes()  //获取分钟
  const second = date.getSeconds() //获取秒
 
  return [year, month, day].map(formatNumber).join('/') + ' ' +
   [hour, minute, second].map(formatNumber).join(':') 
}
 
const formatNumber = n => {  //格式化数字
  n = n.toString()
  return n[1] ? n : '0' + n 
}
 
module.exports = { 
  formatTime: formatTime,
  formatNumber: formatNumber
}

const util = require('../../utils/util.js')

callPay(){
  wx.cloud.callFunction({
    name: 'pay',
    success: res => {
      console.log(res)
      const payment = res.result.payment
      wx.requestPayment({
        ...payment,
        success (res) {
          console.log('支付成功', res) 
        },
        fail (err) {
          console.error('支付失败', err) 
        }
      })
    },
    fail: console.error,
  })
},

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV
})

exports.main = async (event, context) => {
  const res = await cloud.cloudPay.unifiedOrder({
    "body": "zzzzz",
    "outTradeNo" : "1xxxxxxxxxx", //不能重复，否则报错
    "spbillCreateIp" : "127.0.0.1", //就是这个值，不要改
    "subMchId" : "xxxxxxxxxxx",  //你的商户ID或子商户ID
    "totalFee" : 100,  //单位为分
    "envId": "xxxxxxxx",  //你的云开发环境ID
    "functionName": "paysuc",
    "nonceStr":"fffffffffffffff",  //随便弄的32位字符串，建议自己生成
    "tradeType":"JSAPI"   //默认是JSAPI
  })
  return res
}

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV,
})
exports.main = async(event, context) => {
  const res = await cloud.cloudPay.queryOrder({
    "sub_mch_id":"xxxxxxxx",
    "out_trade_no":"xxxxxxxxx", //商户订单号，需是云支付成功交易的订单号
    // "transaction_id":"xxxxxxxxxxxxxxxxxxxxx",  //微信订单号可以不必写
    "nonce_str":"xxxxxxxxxxxxxxxxxxxxxxx" //任意的32位字符
  })
  return res
}

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV,
})
exports.main = async(event, context) => {
  const res = await cloud.cloudPay.refund({
    "sub_mch_id":"xxxxxxxxxx",
    "nonce_str":"xxxxxxxxxxxxxxxx",
    "out_trade_no":"xxxxxxxxxxxxxx",//商户订单号，需是云支付成功交易的订单号
    "out_refund_no":"xxxxxxxxxxxxxx",//退款单号，可以自定义，建议与订单号相关联
    "total_fee":100,
    "refund_fee":20,
  })
  return res
}

callPay(){
  wx.cloud.callFunction({
    name: 'pay', 
    success: res => {
      console.log(res)
      const payment = res.result.payment
      wx.requestPayment({
        ...payment,
        success (res) {
          console.log('支付成功', res) 
          this.subscribeMessage()
        },
      })
    },
  })
},
subscribeMessage() {
  wx.requestSubscribeMessage({
    tmplIds: [
      "xxxxxx-xx-x",//订阅消息模板ID
    ],
    success(res) {
      console.log("订阅消息API调用成功：",res)
    },
    fail(res) {
      console.log("订阅消息API调用失败：",res)
    }
  })
},

<button open-type="contact" >进入客服</button>

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV,
})
exports.main = async (event, context) => {
  const wxContext = cloud.getWXContext() 
  try {
    const result = await cloud.openapi.customerServiceMessage.send({
      touser: wxContext.OPENID,
      msgtype: 'text',
      text: {
        content: 'xxxxxxx'
      }
    })
    
    const result2 = await cloud.openapi.customerServiceMessage.send({
      touser: wxContext.OPENID,
      msgtype: 'text',
      text: {
        content: 'xxxxx'
      }
    }) 

    return event    
  } catch (err) {
    console.log(err)
    return err
  }
}

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV,
})
exports.main = async (event, context) => {
  const wxContext = cloud.getWXContext() 
  try {
    const result = await cloud.openapi.customerServiceMessage.send({
      touser: wxContext.OPENID,
      msgtype: 'link',
      link: {
        title: 'xxxxxxx',
        description: 'xxxxxx',
        url: 'https://xxxxxxx根据关键词来回复用户t.com/',
        thumbUrl: 'https://xxxxxxxm/love.png'
      }
    }) 
  return event    

  } catch (err) {
    console.log(err)
    return err
  }
}

const cloud = require('wx-server-sdk')
cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV,
})
exports.main = async (event, context) => {
  const wxContext = cloud.getWXContext() 
  const keyword = event.Content
  try {
    if(keyword.search(/xxxx/i)!=-1){
      const result = await cloud.openapi.customerServiceMessage.send({
        touser: wxContext.OPENID,
        msgtype: 'link',
        link: {
          title: 'xxxxx',
          description: 'xxxxx',
          url: 'https://xxx.com/',
          thumbUrl: 'https://xxxx.png'
        }
      })  
    } 
    return event
  } catch (err) {
    console.log(err)
    return err
  }
}

getWeRunData(){
  wx.getWeRunData({
    success: (result) => {
      console.log(result)
    },
  })
}

subscribeMessage() {
  wx.requestSubscribeMessage({
    tmplIds: [
      "xxxxxxxxxxxx",//模板
      "xxxxxxxxxxxx",
      "xxxxxxxxxx
    ],
    success(res) {
      console.log("订阅消息API调用成功：",res)
    },
    fail(res) {
      console.log("订阅消息API调用失败：",res)
    }
  })
},

<script>
	global.isLogin = function() {
		try {
			var openid = uni.getStorageSync('openid');
		} catch (e) {

		}
		if (openid === '') {
			return false
		} else {
			return {
				openid
			}
		}
	};
	export default {
		onLaunch: function() {
			console.log('App Launch')
			wx.cloud.init({
				traceUser: true
			});
		}
	}
</script>

<template>
	<view>
		<!-- #ifdef MP-WEIXIN -->
		<button class='bottom' type='primary' open-type="getUserInfo"
		 withCredentials="true" lang="zh_CN" @getuserinfo="wxGetUserInfo">
			授权登录
		</button>
		<!-- #endif -->
	</view>
</template>
<script>
	const db = wx.cloud.database();
	export default {
		data() {
			return {}
		},
		methods: {
			wxGetUserInfo(msg) {
				console.log(msg)
				
				var that = this;
				if (!msg.detail.iv) {
					uni.showToast({
						title: '您取消了授权，登录失败',
						icon: 'none'
					});
					return false
				}
				
				uni.showLoading({
				    title: '加载中'
				});
				
				uni.login({
					provider: 'weixin',
					success: function(loginRes) {
					
						console.log(loginRes)
						that.getOpenid(msg);
					},
					fail: function(r) {
						console.log(r)
					}
				})
				
			},
			getOpenid(msg) {
				var that = this;
				
				wx.cloud.callFunction({
					name: 'getOpenid',
					complete: res => {
						console.log('openid: ', res);
						try {
							uni.setStorageSync('openid', res.result.openId);
						} catch (e) {
						}
						that.saveToDb(msg, res.result.openId)
					},
				});
				
			},
			
			saveToDb(msg, openid) {
				console.log(openid)
				
				db.collection('user').where({
					_openid: openid
				}).get().then(res => {
				
					console.log(res)
					
					if (res.errMsg === 'collection.get:ok') {
					
						if (res.data.length === 0) {
							db.collection('user').add({
								data: {
									...msg.detail.userInfo,
									_openid: res.result.openId
								}
							}).then(res => {
								console.log(res);
							});
						}
						
						uni.hideLoading();
						
						uni.showToast({
							title: '授权成功',
							icon: 'success'
						});
						
						setTimeout(() => {
							uni.navigateBack();
						}, 1500);
					} else {}
				})

			}
		},
		onLoad() {

		}
	}
</script>