base

const (
	RetCode_SUCCESS RetCode = 200
	RetCode_ERROR   RetCode = 500

	DATETIME_UTC = iota
	DATETIME_GMT8

	ZERO_TIME_INT64   = -62135596800
	PAGE_SIZE_ALL     = -1
	PAGE_SIZE_ZERO    = 0
	PAGE_SIZE_DEFAULT = 20
	PAGE_SIZE_MAX     = 500

	FormatDate     = "2006-01-02"
	FormatDateTime = "2006-01-02 15:04:05"
	FormatUTCTime  = "2006-01-02T15:04:05.000Z"
)