中国标准时间转换成YYY-MM-DD

export function changeDate(dateA) {
    let date;
    if (dateA) {
      if (dateA.toString().indexOf('GMT') > -1) {
        var dateee = new Date(dateA).toJSON();

        date = new Date(+new Date(dateee) + 8 * 3600 * 1000)
          .toISOString()
          .replace(/T/g, " ")
          .replace(/.[d]{3}Z/, "");
      } else {
        date = dateA
      }
    } else {
      date = dateA
    }
     return date;
   }