获取当天凌晨时间

//获取明天凌晨;
let start = 0;
this.orderList.forEach(item => {
  if (item.time === '0') {
    start =   new Date(new Date(new Date().setDate(new Date().getDate()+1)).setHours(0,0,0,0)).getTime();
    item.withdrawTime = start;
  } else {
    start =   new Date(new Date(new Date().setDate(new Date(item.time * 1000).getDate()+1)).setHours(0,0,0,0)).getTime();
    item.withdrawTime = start;
  }
});