在公众号学习实现的
需要下载一个vue2.0的js,即可
代码如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>例子demo</title>
<style>
.edit{
display:block ;
width:80%;
height: 35px;
line-height: 35px;
margin: 30px auto;
box-sizing: border-box;
padding-left: 4px;
border-radius: 4px;
border:1px solid #ccc;
outline: 0;
box-shadow: 0 0 5px #ccc;
}
.list{
margin: 0 auto;
width:80%;
}
.unit{
position: relative;
padding: 10px 0;
border-bottom: 1px solid #efefef;
}
.unit:last-child{
border-bottom: 0;
}
.finish{
text-decoration: line-through;
color: #ccc;
}
.del{
background: red;
text-decoration: none;
position: absolute;
right:0;
font-size: 12px;
border: 0;
outline: 0;
padding: 2px 5px;
border-radius: 5px;
color: #fff;
}
.empty{
font-size: 13px;
color: #ccc;
text-align: center;
padding: 10px 0;
}
</style>
</head>
<body>
<div id="app">
<input
class="edit"
type="text"
v-model="task.content"
placeholder="编写任务"
name="" id=""
@keydown.enter = "addTask"
>
<div class="list">
<div class="unit"
v-for="(item,index) in list">
<input
@click="changeState(index)"
:checked="item.finished"
type="checkbox"
>
<span :class="{'finish':item.finished}">
{{item.content}}
</span>
<button @click="removeTask(index)"
class="del">
删除
</button>
</div>
<p v-if="list.length === 0" class="empty">暂无任务</p>
</div>
</div>
<script src="js/vue.js"></script>
<script type="text/javascript">
const app = new Vue({
el:"#app",
data:{
//默认
task:{
content:'', //内容为空
finished:false, //未完成
deleted:false //未删除
},
//任务列表
list:[]
},
methods:{
//添加任务
addTask:function(){
//将task存入到list数组
this.list.push(this.task);
//存入list[],后重置task
this.task = {
content:'', //内容为空
finished:false, //未完成
deleted:false //未删除
}
},
//循环的任务 是否完成
changeState:function(index){
let curState = this.list[index].finished;
this.list[index].finished = !curState;
},
//任务的删除 与否
removeTask:function(index){
//使用splice操作删除数组指定项
this.list.splice(index,1);
}
}
});
</script>
</body>
</html>