我在用my-date-picker在Angular2中,当我从datepicker中选择任何日期时,它将为我提供datepicker的输出JSON像这样"effectiveDate":{"date":{"year":2017,"month":7,"day":1},"jsdate":"2017-06-30T18:30:00.000Z","formatted":"07/01/2017","epoc":1498847400}但是我想要输出"effectiveDate":"07/01/2017"这个。获取输出:"effectiveDate":{"date":{"year":2017,"month":7