vue实战-小案例

发表于 | 分类于 | | 阅读次数

加强动手能力是进步的最好方式

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
<style>
    .demo{width: 400px;height: 600px;border: 1px solid #ccc;margin: 0 auto;}
    .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" class="demo">
    <input class="edit" v-model="task.content" type="text" placeholder="编写任务" @keydown.enter='addTask' >
   
    <div class="list">
        <div class="unit" v-for="(item,index) in list">
            <input type="checkbox" @click='change(index)' :checked="item.finished">
            <span :class="{finish:item.finished}">{{item.content}}</span>
            <button class="del" @click='del(index)'>删除</button>
        </div>
        <p class="empty" v-if="list.length===0">暂无任务</p>
    </div>
</div>
<script>
const vm=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:{
        addTask(){
            this.list.push(this.task);
            
            this.task={
                content:'',
                finished:false,//是否完成
                deleted:false //是否删除
            }
        },

        change(index){
            let curstate=this.list[index].finished;
            this.list[index].finished=!curstate;
        },

        del(index){
        this.list.splice(index,1)
        }
    }
})

</script>
</body>
</html>