//时间戳转换方法    date:时间戳数字

formatDate(date) {

  var date = new Date(date);

  var YY = date.getFullYear() + '-';

  var MM = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-';

  var DD = (date.getDate() < 10 ? '0' + (date.getDate()) : date.getDate());

  var hh = (date.getHours() < 10 ? '0' + date.getHours() : date.getHours()) + ':';

  var mm = (date.getMinutes() < 10 ? '0' + date.getMinutes() : date.getMinutes()) + ':';

  var ss = (date.getSeconds() < 10 ? '0' + date.getSeconds() : date.getSeconds());

  return YY + MM + DD +" "+hh + mm + ss;

},

　　　　$dateFormatDay=(timestamp)=>{

          var date = new Date(timestamp); //时间戳为10位需*1000，时间戳为13位的话不需乘1000

          var Y = date.getFullYear() + '-';

          var M = (date.getMonth() + 1 < 10 ? '0' + (date.getMonth() + 1) : date.getMonth() + 1) + '-';

          var D = (date.getDate() < 10 ? '0'+date.getDate() : date.getDate()) + ' ';

          return Y + M + D ;

        }

 startTime = new Date(new Date().setHours(0, 0, 0, 0));

 startTime = $dateFormat(startTime);

 var SevenDayAgo = startTime - 86400 * 7 * 1000;

 SevenDayAgo = $dateFormat(SevenDayAgo);

var SevenDayLater = startTime*1 + 86400 * 7 * 1000;

SevenDayLater = $dateFormat(SevenDayLater);

var AmonthAgo= startTime.setMonth(startTime.getMonth() - 1);

AmonthAgo = $dateFormat(AmonthAgo);