当前时间 加 几天 的日期

// 当前时间加 几天
addDate(date, days) {
  var date = new Date(date);
  date.setDate(date.getDate() + days);
  var month = date.getMonth() + 1;
  var day = date.getDate();
  var mm = "'" + month + "'";
  var dd = "'" + day + "'";
  if (mm.length == 3) {
    month = "0" + month;
  }
  if (dd.length == 3) {
    day = "0" + day;
  }
  var time = date.getFullYear() + "-" + month + "-" + day
  return time;
},

var newTime = this.addDate(new Date()， 7）
console.log(newTime)