数组里面有个属性为时间 ：2021-01-06 19:47:02
this.beOnline.sort(function (a, b) {
if (new Date(a.time) > new Date(b.time)) {
return -1;
} else if (new Date(a.time) < new Date(b.time)) {
return 1;
}
return 0;
});
