javascript - Vue newbie asking for help. v-for and v-if render multiple elements at the same level. How to change the display/hide of one of the elements individually?
I am practicing by making a todolist that can be added, deleted, and modified, imitating www.todolist.cn, and got stuck when re-editing the todo content. The official solution has not been summarized, so I am here to ask for help. the following. 
Clicking on the text changes to input modification, but the effect is like this
Because my v-if is bound to the same variable, it will definitely be changed globally, but for vue My understanding is too shallow and I can’t think of effective methods.
Code: `<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>NBtodoList</title>
<link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.bootcss.com/vue/2.3.3/vue.min.js"></script>
<style>
body{
background: #CDCDCD;
}
header{
height: 50px;
line-height: 50px;
background: #323232;
}
.headerForm label{
color: #DDDDDD;
font-size: 20px;
cursor: pointer;;
}
.headerForm input{
margin-top: 8px;
}
.h2{
font-weight: bold;
margin: 20px 0;
}
section{
}
li,ul,ol{
list-style: none;
}
.oLi{
height: 40px;
background: #fff;
border-radius: 5px;
line-height: 40px;
border-left: 5px solid #629A9C;
margin-bottom: 10px;
}
.oLi .check{
width: 22px;
height: 22px;
margin: 9px;
}
.oLi p{
height: 40px;
}
.oLi *{
padding: 0;
}
.oLi i{
text-align: center;
line-height: 40px;
font-size: 18px;
}
.oLi span{
cursor: pointer;
}
.oLi .txt{
line-height: 50px;
display: inline-block;
padding-left: 5px;
}
ul{
padding-left: 0;
}
</style></head>
<body>
<p id="app">
<header class="container-fluid">
<p class="container">
<p class="headerForm form-group center-block clearfix">
<label for="todocontent" class="pull-left col-xs-3">ToDoList</label>
<p class="col-xs-9 pull-right">
<input autofocus type="text" id="todocontent" class="form-control" v-model='todoText' v-on:keyup.enter='addTodo' placeholder="添加ToDo">
</p>
</p>
</p>
</header>
<section class="container">
<p class="center-block" style="padding: 0 15px">
<my-h2 v-bind:num='noNum' status='正在进行'></my-h2>
<ul>
<my-li v-for='(todo,index) in todoList' v-bind:to='todo' v-on:deltodo='deltodos(index)' v-on:todook='dotoDown(index)' v-on:childrevamp="revamp" v-bind:childisrevamp="isRevamp"></my-li>
</ul>
<my-h2 v-bind:num='okNum' status='已经完成'></my-h2>
<ul>
<my-li style="opacity: .5" v-for='(oktodo,index) in oktodoList' v-bind:childchecked="checked" v-bind:okto='oktodo' v-on:deltodo='deloktodos(index)' v-on:todook='dotoUp(index)' childisrevamp="ture"></my-li>
</ul>
</p>
</section>
</p></body>
<script>
Vue.component('my-li',{
props:['to','okto','childchecked','childisrevamp'],
template: '<li class="oLi"><input type="checkbox" v-model="childchecked" v-on:change="todook" class="check col-xs-1"/><p class="pull-left col-xs-10"><span v-on:click="childrevamp" v-if="childisrevamp">{{to}}{{okto}}</span><input v-on:blur="childrevamp" v-if="!childisrevamp" class="txt form-control"></input></p><i href="#" v-on:click="deltodo" class="pull-right col-xs-1 glyphicon glyphicon-remove"></i></li>',
methods: {
childAddTodo: function(){
this.$emit('childAddTodo')
},
deltodo: function(){
this.$emit('deltodo');
},
todook: function(){
this.$emit('todook');
},
childrevamp: function(){
this.$emit('childrevamp');
}
}
})
Vue.component('my-h2',{
props: ['num','status'],
template: '<h2 class="h2">{{status}}<span class="pull-right badge" style="margin-top: 8px;">{{num}}</span></h2>'
})
new Vue({
el: '#app',
data: {
todoText: '',
todoList: [],
okTodoText: '',
oktodoList: [],
noNum: 0,
okNum: 0,
checked: true,
isRevamp: true
},
methods: {
addTodo: function(){
this.todoText.trim() ? this.todoList.push((this.todoText).trim()) : alert('你输嘞不对~');
localStorage.notodo = JSON.stringify(this.todoList);
this.noNum = this.todoList.length;
this.todoText = '';
},
deltodos: function(index){
this.todoList.splice(index,1);
localStorage.notodo = JSON.stringify(this.todoList);
this.noNum = this.todoList.length;
},
deloktodos: function(index){
this.oktodoList.splice(index,1);
localStorage.oktodo = JSON.stringify(this.oktodoList);
this.okNum = this.oktodoList.length;
},
dotoDown: function(index){
this.oktodoList.push(this.todoList[index]);
localStorage.oktodo = JSON.stringify(this.oktodoList);
this.deltodos(index);
this.okNum = this.oktodoList.length;
},
dotoUp: function(index){
this.todoList.push(this.oktodoList[index]);
localStorage.notodo = JSON.stringify(this.todoList);
this.deloktodos(index);
localStorage.oktodo = JSON.stringify(this.oktodoList);
this.noNum = this.todoList.length;
},
revamp: function(){
this.isRevamp = !this.isRevamp;
}
},
created:function(){
this.todoList = localStorage.notodo ? JSON.parse(localStorage.notodo) : [];
this.oktodoList = localStorage.oktodo ? JSON.parse(localStorage.oktodo) : [];
this.noNum = this.todoList.length;
this.okNum = this.oktodoList.length;
}
})</script>
</html>`
Is there any way to hide only the current span and display the input after the revamp event is triggered? Ask the experts for advice!
