表學(xué)生.DBF中共有20個(gè)記錄,順序執(zhí)行下面命令:
SET DELETED OFF
USE 學(xué)生
DELETE
COUNT TO AA
PACK
COUNT TO AA
ZAP
COUNT TO AA
USE
3次COUNT 得到的AA結(jié)果分別為()
A.19,19,1
B.19,19,0
C.20,19,0
D.20,19,19
A.SHOW
B.REFRESH
C.RELEASE
D.FORECOLOR
A.FONTSIZE
B.BACKCOLOR
C.FONTNAME
D.ADDITEM