获取当前时间

仅获取当前时间为用处，时间处理待优化

getNowDate() {

      var date = new Date()

      var year = date.getFullYear()

      var month = date.getMonth() + 1

      var strDate = date.getDate()  //

      if (month >= 1 && month <= 9) {

        month = '0' + month

      }

      if (strDate >= 0 && strDate <= 9) {

        strDate = '0' + strDate

      }

      var currentdate = year + '-' + month + '-' + strDate

      return currentdate

    },