js实现将时分秒转化成毫秒，将秒转化成时分秒

// 时间转为毫秒
timeToSec(time) {
var hour = time.split('😂[0]
var min = time.split('😂[1]
var sec = time.split('😂[2]
var s = Number(hour * 3600) + Number(min * 60) + Number(sec)
return s * 1000
}

// 将秒转化成时分秒
　secTotime(s) {
var t
if(s > -1){
var hour = Math.floor(s/3600)
var min = Math.floor(s/60) % 60
var sec = s % 60
if(hour < 10) {
t = '0'+ hour + ":"
} else {
t = hour + ":"
}
if(min < 10){
t += "0"
}
t += min + ":"
if(sec < 10){
t += "0"
}
t += sec.toFixed(2)
}
return t
}