重新编写日期格式 YYYY-MM_DD

//重新编写时间格式YYYY-MM_DD
  function getDateStr3(date) {
    console.log('date',date);
    var year = "";
    var month = "";
    var day = "";
    var now = date;
    year = "" + now.getFullYear();
    if ((now.getMonth() + 1) < 10) {
      month = "0" + (now.getMonth() + 1);
    } else {
      month = "" + (now.getMonth() + 1);
    }
    if ((now.getDate()) < 10) {
      day = "0" + (now.getDate());
    } else {
      day = "" + (now.getDate());
    }
    return year + "-" + month + "-" + day;
  }