happenTimeFun(num){//時間戳數(shù)據(jù)處理

         let date = new Date(num);
        //時間戳為10位需*1000，時間戳為13位的話不需乘1000
        let y = date.getFullYear();
        let MM = date.getMonth() + 1;
        MM = MM < 10 ? ('0' + MM) : MM;//月補0
        let d = date.getDate();
        d = d < 10 ? ('0' + d) : d;//天補0
        let h = date.getHours();
        h = h < 10 ? ('0' + h) : h;//小時補0
        let m = date.getMinutes();
        m = m < 10 ? ('0' + m) : m;//分鐘補0
        let s = date.getSeconds();
        s = s < 10 ? ('0' + s) : s;//秒補0
        return y + '-' + MM + '-' + d + ' ' + h + ':' + m+ ':' + s;

}    
happenTimeFun(1628648245);

timeProcessing(){
    let timeDate = "2020-08-11 11:08:48";
    let Time = new Date(timeDate);
    console.log(Time)// (中國標準時間)
    let timestemp = Time.getTime();
    console.log(timestemp)
}