Date timestamp swap

        Just a record, I don’t want to be confused.

//日期转化为时间戳
let date=dateFormat(new Date()) //年月日时分秒
let time=new Date(date).getTime()
console.log(time/1000)

//时间戳转化为日期
let time1=1653321600*1000;
let time2=1653408000*1000;
let newDate1=dateFormat(new Date(time1))
let newDate2=dateFormat(new Date(time2))

console.log(newDate1)
console.log(newDate2)

function dateFormat(time) {
    let date = time;
    let year = date.getFullYear();
    let month = date.getMonth() + 1 < 10 ? "0" + (date.getMonth() + 1) : date.getMonth() + 1;
    let day = date.getDate() < 10 ? "0" + date.getDate() : date.getDate();
    let hours = date.getHours() < 10 ? "0" + date.getHours() : date.getHours();
    let minutes = date.getMinutes() < 10 ? "0" + date.getMinutes() : date.getMinutes();
    let seconds = date.getSeconds() < 10 ? "0" + date.getSeconds() : date.getSeconds();
    // 拼接
    return year + "-" + month + "-" + day + " " + hours + ":" + minutes + ":" + seconds;
}

function  DateDiff(sDate1,  sDate2){    //sDate1和sDate2是2002-12-18格式
    var  aDate,  oDate1,  oDate2,  iDays
    aDate  =  sDate1.split("-")
    oDate1  =  new  Date(aDate[1]  +  '-'  +  aDate[2]  +  '-'  +  aDate[0])    //转换为12-18-2002格式
    aDate  =  sDate2.split("-")
    oDate2  =  new  Date(aDate[1]  +  '-'  +  aDate[2]  +  '-'  +  aDate[0])
    iDays  =  parseInt(Math.abs(oDate1  -  oDate2)  /  1000  /  60  /  60  /24)    //把相差的毫秒数转换为天数
    return  iDays
}