小编Ant*_*lia的帖子

var selectedtimes = [3000, 5000, 15000, 10000]
var randtimes = selectedtimes[Math.floor(Math.random() * selectedtimes.length)];

var sti = setInterval(function() {
  console.log("now")
}, randtimes);

function restartsti() {
  var restartinterval = setInterval(restartsti, selectedtimes[Math.floor(Math.random() * selectedtimes.length)]);
}