关于小程序

// 例子(小程序)
let a = this.data.a;
let b = this.data.b;
// ES6对象解构赋值
let {a,b} = this ; // vue
let {a,b} = this.data; //小程序

<view  hidden="{{false}}"></view>
 <!--  false 为显示   true为隐藏 -->

<!-- 这样的写法会出现换行的效果 -->
<text>
    SevenDream 
    SevenDream 
</text>
<!-- 如果不需要换行的效果-->
<text>SevenDream SevenDream</text>

<image src="xxx.png" style="display:block"></image>

//utils.js
export function navigateTo(url) {
   let Type = getCurrentPages().length >= 10 ? 'redirectTo' : 'navigateTo'
    return new Promise((resolve, reject) => {
      wx[Type]({
        url,
        success: res => {
          resolve()
        },
        fail: err => {
          reject(err)
        },
      })
    })
}
// 其他页面js
import {navigateTo} from '../../utils/utils';
navigateTo('pages/index/index')

wx.switchTab({
    url: '/pages/my/my',
    success:function(){
        var page  =  getCurrentPages().pop(); //当前页面
        page.onLoad(); // 调用 onload
    }})

    var pages = getCurrentPages(); // 获取页面栈
    var prevPage = pages[pages.length - 2];  //上一页
    prevPage.setData(data);
    wx.navigateBack({
      delta: 1
    })

  //data
  data: {
    obj: {
      a: 1
    },
    array: ['1']
  },
  //改变对象
  setOBJ:function(){
    var name = 'a'
    var obj = 'obj.a'
    this.setData({
      [obj]:2
    })
  },
  //改变数组
  setArr: function () {
    var num = 0
    var arr = `array[${num}]`
    this.setData({
      [arr]: 2
    })
  }

  <input data-name="name"  bindinput="onInput" value="{{FromOBJ.name}}">
  <input data-name="phone"  bindinput="onInput" value="{{FromOBJ.phone}}">
  <input data-name="address"  bindinput="onInput" value="{{FromOBJ.address}}">

// 写入
  data:{
    FromOBJ:{
      name:'',
      phone:'',
      address:''
    }
  },
  onInput: function (e) {
      let name =  e.currentTarget.dataset.name
      let value = e.detail.value
      let valueObj = `FromOBJ.${name}`;
      this.setData({
        [valueObj]:value
      })
  }

//API.js
const HTTP_URL = 'https://xxxx.xxx.xxx/'

function Request(url, data={},method='get',ContentType='application/json;charset=utf-8') {
    return new Promise((resolve, reject) => {
        wx.request({
            url: HTTP_URL.http + url,
            method: method,
            header: {
                'Content-Type': ContentType,
                'xxxx': 'xxxx'  // 其他header头
            },
            data: data,
            success: function (res) {
                resolve(res.data)
            },
            fail: function (err) {
                reject(err)
            }
        })
    })
}

export function getApi(data) {
    var url = '/getapi';
    return Request(url, data)
}
// 其他页面js
import {getApi} from '../../utils/api';
getApi({a:1,b:2}).then(res=>console.log(res)).catch(err=>console.log(err))