这个vue实现备忘录的功能demo是K在github上找到的，K觉得这是一个用来对vue.js入门的一个非常简单的demo，所以拿在这里共享一下。
（尊重他人劳动成果，从小事做起~ demo原github地址：https://github.com/vuejs/vue）
一、实现效果
二、代码展示
<!DOCTYPE html>
<html> <head>
<meta charset="UTF-8">
<title>备忘录</title>
<link rel="stylesheet" type="text/css" href="css/index.css" rel="external nofollow" />
<style>[v-cloak] { display: none; }</style>
</head>
<body>
<section class="todoapp">
<header class="header">
<h1>todos</h1>
<input class="new-todo"
autofocus autocomplete="off"
placeholder="What needs to be done?"
v-model="newTodo"
@keyup.enter="addTodo">
</header>
<section class="main" v-show="todos.length" v-cloak>
<input class="toggle-all" type="checkbox" v-model="allDone">
<ul class="todo-list">
<li v-for="todo in filteredTodos"
class="todo"
:key="todo.id"
:class="{ completed: todo.completed, editing: todo == editedTodo }">
<div class="view">
<input class="toggle" type="checkbox" v-model="todo.completed">
<label @dblclick="editTodo(todo)">{{ todo.title }}</label>
<button class="destroy" @click="removeTodo(todo)"></button>
</div>
<input class="edit" type="text"
v-model="todo.title"
v-todo-focus="todo == editedTodo"
@blur="doneEdit(todo)"
@keyup.enter="doneEdit(todo)"
@keyup.esc="cancelEdit(todo)">
</li>
</ul>
</section>
<footer class="footer" v-show="todos.length" v-cloak>
<span class="todo-count">
<strong>{{ todos.length }}</strong> {{ remaining | pluralize }} left
</span>
<ul class="filters">
<li><a href="#/all" rel="external nofollow" :class="{ selected: visibility == 'all' }">All</a></li>
<li><a href="#/active" rel="external nofollow" :class="{ selected: visibility == 'active' }">Active</a></li>
<li><a href="#/completed" rel="external nofollow" :class="{ selected: visibility == 'completed' }">Completed</a></li>
</ul>
<button class="clear-completed" @click="removeCompleted" v-show="todos.length > remaining">
Clear completed
</button>
</footer>
