VUE模拟select


<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
    <title>Vue模拟select</title>
    <script src="https://denghao.me/js/vue.min.js"></script>
    <style>
        h3{
            text-align: center;
        }
        #app{
            margin: 20px auto;
             250px;
            position: relative;
            background-color: #f5f5f5;
        }
        #app:after{
            content: "";
            position: absolute;
            top: 14px;
            right: 6px;
             0;
            height: 0;
            border:8px solid transparent;
            border-top-color: #666;
        }
        #app>input{
             100%;
            height: 30px;
            text-indent: 6px;
        }

        #app>div{
            position: absolute;
             100%;
            top: 36px;
            left: 0;
            background-color: #f5f5f5;
            z-index: 2;
        }

        #app>div>label{
            display: block;
            cursor: pointer;
            text-indent: 10px;
            padding: 8px 0;
            margin:0;
        }
    </style>
</head>
<body>
<h3>模拟select</h3>
<div id="app">
    <input class="tar" type="text" :value="vals" readonly placeholder="下拉选择 ">
    <div v-if="flag">
        <label v-for="item in list" class="tar"><input class="tar" type="radio" v-model="vals" :value="item.name">{{item.name}}</label>
    </div>
</div>

<script>
    new Vue({
        el: '#app',
        data: {
            list: {}, //初始列表数据
            vals: [], //选择的数据
            flag: false //toggle标记
        },
        ready() {
            var _this = this;
            _this.initData();
            //下拉toggle效果
            document.addEventListener("click", function(e) {
                var c = e.target.className;
                _this.flag = c == "tar" ? true : false;
            });
        },

        methods: {
            //渲染列表数据
            initData() {
                var data = [{
                    id: 1,
                    name: "张一"
                }, {
                    id: 2,
                    name: "李二"
                }, {
                    id: 3,
                    name: "邓三"
                }];

                //赋值
                this.list = data;
            }
        }

    })

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