ttt

<template>
    <div class="mydate">
        {{date|formatDate(this)}}
    </div>
</template>

<script>
    export default{
        data(){
            return{
                date:new Date(
<template>
    <div class="mydate">
        {{date|formatDate(this)}}
    </div>
</template>

<script>
    export default{
        data(){
            return{
                date:new Date()
            }
        },
        methods:{
            padDate(value){
                return value<10?"0"+value:value
            },
        },
        filters:{
            formatDate(value,vue){//value需要过滤的数据
                var date = new Date(value);
                var year = date.getFullYear();
                var month = vue.padDate(date.getMonth()+1);
                var day = vue.padDate(date.getDate());
                var hours = vue.padDate(date.getHours());
                var minutes = vue.padDate(date.getMinutes());
                var seconds = vue.padDate(date.getSeconds());
                return year+"-"+month+"-"+day+" "+hours+":"+minutes+":"+seconds;
            }
        },
        mounted(){
            this.timer = setInterval(()=>{
                this.date = new Date();
            },1000);
        },
        beforeDestory(){
            if(this.timer){
                clearInterval(this.timer);//在vue实例销毁前，清除我们的定时器
            }
        }
    }
</script>
</script>

<style>

</style>
 

)
            }
        },
        methods:{
            padDate(value){
                return value<10?"0"+value:value
            },
        },
        filters:{//filters指向window而不是vue，所以要将vue作为参数传进来才能调用methods中的方法
            formatDate(value,vue){//value需要过滤的数据
                var date = new Date(value);
                var year = date.getFullYear();
                var month = vue.padDate(date.getMonth()+1);
                var day = vue.padDate(date.getDate());
                var hours = vue.padDate(date.getHours());
                var minutes = vue.padDate(date.getMinutes());
                var seconds = vue.padDate(date.getSeconds());
                return year+"-"+month+"-"+day+" "+hours+":"+minutes+":"+seconds;
            }
        },
        mounted(){
            this.timer = setInterval(()=>{
                this.date = new Date();
            },1000);
        },
        beforeDestory(){
            if(this.timer){
                clearInterval(this.timer);//在vue实例销毁前，清除我们的定时器
            }
        }
    }
</script>
</script>

<style>

</style>