01 start

1. Installation: use the script tag is introduced

<-! Development environment version includes a helpful warning command line -> 
< Script src = "https://cdn.jsdelivr.net/npm/vue/dist/vue.js"> </ Script>

<-! Production version, optimized for size and speed -> 
<Script src = "https://cdn.jsdelivr.net/npm/vue"> </ Script>

 

2. Example

//HTML
<div id="app">
  {{ message }}
</div>

//JS
var app = new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue!'
  }
})

HTML 
<div the above mentioned id = "App-2"> 
  <span the bind-v: title = "the Message"> 
    hover for a few seconds to view the message dynamic binding of here! 
  </ span> 
</ div> 

the JS 
var = App2 new new Vue ({ 
  EL: '# App2', 
  Data: { 
    Message:. 'page loaded' + new new a Date () toLocaleString () 
  } 
})

HTML 
<div the above mentioned id = "app3"> 
  <the p-v-IF = "Seen"> Now you see me </ the p-> 
</ div> 

JS 
var = app3 new new Vue ({ 
  EL: '# app3 ', 
  Data: { 
    Seen: to true 
  } 
}) 
at the input console  , you will find the message displayed before disappearing.app3.seen = false

The HTML 
<div ID = "APP4"> 
  <OL> 
    <-V for Li = "TODO in Todos"> 
      {{}} todo.text 
    </ Li> 
  </ OL> 
</ div> 

the JS 
var = new new APP4 VUE ({ 
  EL: '# App-. 4', 
  Data: { 
    Todos: [ 
      {text: 'learning the JavaScript'}, 
      {text: 'learning VUE'}, 
      {text: 'whole cow project'} 
    ] 
  } 
}) 

in console, enter  , you will find a list of the last added a new project.app4.todos.push({ text: '新项目' })

Implement user and application interaction, we can add an event listener with v-on command 
the HTML 
<div ID = "App-. 5"> 
  <P> {{Message}} </ P> 
  <Button v-on: the Click = "reverseMessage"> reverse message </ Button> 
</ div> 

the JS 
var = APP5 new new Vue ({ 
  EL: '# APP5', 
  Data: { 
    message: '! Vue.js the Hello' 
  }, 
  Methods: { 
    reverseMessage : function () { 
      this.message = this.message.split ( '') Reverse () the Join.. ( '') 
    } 
  } 
})

v-model instruction, it can easily form a two-way binding between input and application state. 
The HTML 
<div ID = "APP6"> 
  <P> Message {} {} </ P> 
  <INPUT = V-Model "Message"> 
</ div> 

the JS 
var = APP6 new new Vue ({ 
  EL: '#app -6 ', 
  Data: { 
    Message:' Vue the Hello '! 
  } 
})