參考部落格：

　　https://www.cnblogs.com/zhaoxiaoying/p/10723063.html

1、在format.js中定義全域性filter函式

export  default {
    formatDate(value) {
        let date = new Date(value.replace(/-/g, "/"))
        let year =  date.getFullYear();
        let month = date.getMonth() + 1;
        let day = date.getDate();
        let hours 
 
= date.getHours();
        if(hours<10){
            hours = "0"+ hours;
        }
        let minutes = date.getMinutes();
        if(minutes<10){
            minutes = "0"+ minutes;
        }
        return year +"年" + month + "月" + day + "日" + " " + hours + ":" + minutes;
    },

    //轉化直播狀態
    formatLiveStatus(status) {
        let temp
        
 
switch(status) {
            case 1:
                temp = "直播中";
                break;
            case 2:
                temp = "已結束";
                break;
            default:
                temp = "待開播";
        }
        return temp;
    },

    //16999
    tranNumber(num, point) {
        let numStr 
 
= num.toString()
        if(numStr.length < 5){
            return numStr
        }
        else if (numStr.length < 6) {
            return numStr.substring(0, numStr.length - 3) + "." + numStr.substring(numStr.length - 3, numStr.length - 2) + "k"
        } else {
            return numStr.substring(0, numStr.length - 4) + "." + numStr.substring(numStr.length - 4, numStr.length - 3) + "w"
        }
    }
}

2、在main.js中引入

import filters from './util/format'

//全域性filter
Object.keys(filters).forEach(k => {
　　Vue.filter(k, filters[k])
})

3、在各個元件中直接使用即可