【简单粗暴】秒数换算时分秒

currentTime= 180 //要换算的总秒数

th = parseInt(currentTime/ 3600);

ti = parseInt((currentTime- th * 3600) / 60);

ts = parseInt(currentTime- th * 3600 - ti * 60);

if (th < 10) {

th = '0' + th;

}

if (ti < 10) {

ti = '0' + ti;

}

if (ts < 10) {

ts = '0' + ts;

}

console.log(th, ti, ts)