二級vf考試試題及答案

一.選擇題

1.欲從項(xiàng)目管理器中創(chuàng)建菜單，應(yīng)選擇選項(xiàng)卡:HTMLCONTROLForms.HTML:Option.1文檔HTMLCONTROLForms.HTML:Option.1代碼HTMLCONTROLForms.HTML:Option.1其它HTMLCONTROLForms.HTML:Option.1數(shù)據(jù)HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

2.菜單中定義訪問鍵，在訪問鍵前應(yīng)加上字符：HTMLCONTROLForms.HTML:Option.1“Ctrl+”HTMLCONTROLForms.HTML:Option.1“Alt+”HTMLCONTROLForms.HTML:Option.1“\<”HTMLCONTROLForms.HTML:Option.1“（\-”HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

3.要給表文件學(xué)生.DBF中的整數(shù)型字段“入學(xué)總分”指定取值范圍為550≤入學(xué)總分≤650，以下正確的命令是()。HTMLCONTROLForms.HTML:Option.1ALTERTABLE學(xué)生ALTER入學(xué)總分(INT)CHECK550<=入學(xué)總分<=650HTMLCONTROLForms.HTML:Option.1ALTERTABLE學(xué)生ALTER入學(xué)總分(INT)CHECK550<=入學(xué)總分AND入學(xué)分總<=650HTMLCONTROLForms.HTML:Option.1ALTERTABLE學(xué)生SET入學(xué)總分(INT)CHECK550<=入學(xué)總分AND入學(xué)總分<=650HTMLCONTROLForms.HTML:Option.1ALTERTABLE學(xué)生SET入學(xué)總分(INT)CHECK550<=入學(xué)總分<=650HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：2

4.表格中的列控件默認(rèn)是:HTMLCONTROLForms.HTML:Option.1TextBoxHTMLCONTROLForms.HTML:Option.1EditBoxHTMLCONTROLForms.HTML:Option.1CheckBoxHTMLCONTROLForms.HTML:Option.1ListBoxHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：1

5.用二維表形式表示的數(shù)據(jù)模型是（）HTMLCONTROLForms.HTML:Option.1層次數(shù)據(jù)庫HTMLCONTROLForms.HTML:Option.1網(wǎng)狀數(shù)據(jù)模型HTMLCONTROLForms.HTML:Option.1網(wǎng)絡(luò)數(shù)據(jù)模型HTMLCONTROLForms.HTML:Option.1關(guān)系數(shù)據(jù)模型HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：4

6.如果要選取一個關(guān)系中的若干屬性，應(yīng)使用的關(guān)系運(yùn)算是（）HTMLCONTROLForms.HTML:Option.1連接HTMLCONTROLForms.HTML:Option.1選擇HTMLCONTROLForms.HTML:Option.1投影HTMLCONTROLForms.HTML:Option.1重建HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

7.當(dāng)數(shù)據(jù)表在原始物理順序中記錄指針指向第一個記錄之前，則EOF（）、BOF（）和RECNO（）的返回值分別為（）。HTMLCONTROLForms.HTML:Option.1.T.、.T.和0HTMLCONTROLForms.HTML:Option.1.F.、.T.和1HTMLCONTROLForms.HTML:Option.1.T.、.F.和0HTMLCONTROLForms.HTML:Option.1.F.、.T.和0HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：2

8.在下面的表達(dá)式中，運(yùn)算結(jié)果是邏輯真的是（）。HTMLCONTROLForms.HTML:Option.1EMPTY（SPACE（10））HTMLCONTROLForms.HTML:Option.1LIKE（"EDIT","EDI?"）HTMLCONTROLForms.HTML:Option.1EMPTY（NuLL）HTMLCONTROLForms.HTML:Option.1AT（"a","123abc"）HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：1

9.想要將日期型或日期時間型數(shù)據(jù)中的年份用4位數(shù)字顯示，應(yīng)當(dāng)使用設(shè)置命令（）HTMLCONTROLForms.HTML:Option.1SETCENTURYOFFHTMLCONTROLForms.HTML:Option.1SETCENTURYOF4HTMLCONTROLForms.HTML:Option.1SETCENTURYONHTMLCONTROLForms.HTML:Option.1SETCENTURYTO4HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

10.執(zhí)行下列命令后，屏幕上顯示的結(jié)果是（）。X=＂AREYOUOk?＂Y=＂are＂?AT(Y,X)HTMLCONTROLForms.HTML:Option.1.T.HTMLCONTROLForms.HTML:Option.11HTMLCONTROLForms.HTML:Option.10HTMLCONTROLForms.HTML:Option.1.F.HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

11.在VFP中，要關(guān)閉"Command"窗口，應(yīng)選擇"窗口"菜單中的選項(xiàng)是（）。HTMLCONTROLForms.HTML:Option.1命令窗口HTMLCONTROLForms.HTML:Option.1隱藏HTMLCONTROLForms.HTML:Option.1清除HTMLCONTROLForms.HTML:Option.1數(shù)據(jù)工作期HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：2

12.用INSERT命令插入一條記錄時，被插入的記錄在表中的位置是（）。HTMLCONTROLForms.HTML:Option.1表的最前HTMLCONTROLForms.HTML:Option.1表的尾部HTMLCONTROLForms.HTML:Option.1當(dāng)前記錄之后HTMLCONTROLForms.HTML:Option.1當(dāng)前記錄之前HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

13.如果要為控件設(shè)置焦點(diǎn)，則下列屬性值是真（.T.）的是_______。HTMLCONTROLForms.HTML:Option.1Enabled和VisibleHTMLCONTROLForms.HTML:Option.1Visible和DefaultHTMLCONTROLForms.HTML:Option.1Default和CancelHTMLCONTROLForms.HTML:Option.1Enabled和DefaultHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：1

14.在VFP中，將A盤文本文件JAKE.TXT中的記錄，添加到當(dāng)前表的末尾，應(yīng)該執(zhí)行命令（）。HTMLCONTROLForms.HTML:Option.1APPENDFROMA:JAKE.TXTSDFHTMLCONTROLForms.HTML:Option.1COPYFROMA:JAKE.TXTHTMLCONTROLForms.HTML:Option.1APPENDFROMA:JAKE.TXTHTMLCONTROLForms.HTML:Option.1COPYFROMA:JAKE.TXTSDFHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：1

15.要顯示表XSCJ.DBF中平均分超過90分和不及格的全部女生記錄，應(yīng)當(dāng)使用的命令是（）。HTMLCONTROLForms.HTML:Option.1LISTFOR性別="女".AND.(平均分>90.OR.平均分<60)HTMLCONTROLForms.HTML:Option.1LISTFOR性別="女",平均分>90,平均分<60HTMLCONTROLForms.HTML:Option.1LISTFOR性別="女",平均分>=90,平均分<=60HTMLCONTROLForms.HTML:Option.1LISTFOR性別="女".AND.平均分>90.AND.平均分<60HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：1

16.下列命令用于顯示1968年及其以前出生的職工記錄，其中錯誤的是（）。HTMLCONTROLForms.HTML:Option.1LISTFORYEAR(出生日期)<=1968HTMLCONTROLForms.HTML:Option.1LISTFORSUBSTR(DTOC(出生日期),7,2)<=”68”HTMLCONTROLForms.HTML:Option.1LISTFORRIGHT(DTOC(出生日期),2)<=”68”HTMLCONTROLForms.HTML:Option.1LISTFORLEFT(DTOC(出生日期),7,2)<=”68”HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：4

17.在VFP中，字段長度只受外存可用空間限制的字段類型為()。HTMLCONTROLForms.HTML:Option.1CharacterHTMLCONTROLForms.HTML:Option.1MemoHTMLCONTROLForms.HTML:Option.1NumericHTMLCONTROLForms.HTML:Option.1FloatHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：2

18.當(dāng)前數(shù)據(jù)表文件有10條記錄，要在第5條記錄后面插入1條新記錄，應(yīng)使用命令（）。HTMLCONTROLForms.HTML:Option.1APPENDHTMLCONTROLForms.HTML:Option.1INSERTHTMLCONTROLForms.HTML:Option.1BROWSE.HTMLCONTROLForms.HTML:Option.1EDITHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：2

19.表文件與其相應(yīng)的索引文件已經(jīng)打開，內(nèi)存變量XM="李春"，執(zhí)行以下命令時會發(fā)生錯誤的是（）。HTMLCONTROLForms.HTML:Option.1LOCATEFOR姓名=XMHTMLCONTROLForms.HTML:Option.1SEEKXMHTMLCONTROLForms.HTML:Option.1LOCATEFOR姓名=&XMHTMLCONTROLForms.HTML:Option.1FIND&XMHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：3

20.在VFP中函數(shù)SELECT（）的值為（）。HTMLCONTROLForms.HTML:Option.1文件型HTMLCONTROLForms.HTML:Option.1邏輯型HTMLCONTROLForms.HTML:Option.1字符型HTMLCONTROLForms.HTML:Option.1數(shù)值型HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：4二.判斷題

21.表單的方法就是已封裝的程序，其內(nèi)容可由使用者重新定義編寫。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：N

22.報表的結(jié)果除Preview與ToPrinter外,可以ToFile，成為一個文本文件。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y

23.?和??都是從當(dāng)前光標(biāo)所在行的下一行開始顯示。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：N

24.使用SQL－INSERT命令可以向表中任意位置插入記錄。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：N

25.邏輯型字段的寬度為1。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y

26.用APPENDBLANK追加記錄時不進(jìn)入到全屏幕編輯狀態(tài)。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y

27.已知數(shù)組QQ(10),命令STORE0TOQQ執(zhí)行后數(shù)組的10個元素都為0。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y

28.“+”號運(yùn)算符和“-”號運(yùn)算符，在VFP中可用于字符型和邏輯型數(shù)據(jù)類型中。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：N

29.編輯框?qū)嶋H上是一個完整的字處理器，可進(jìn)行選擇、剪切、粘貼及復(fù)制正文等操作，但在編輯框中只能輸入和編輯字符型數(shù)據(jù)。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y

30.在VFP中能真正改變記錄物理順序的操作是排序。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y

31.報表文件的擴(kuò)展名是.MNXHTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：N

32.一個報表可以設(shè)置一個或多個數(shù)據(jù)分組。HTMLCONTROLForms.HTML:Option.1NHTMLCONTROLForms.HTML:Option.1YHTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：Y三.讀程序(每段程序有兩個小題)

33.程序執(zhí)行完后，第一條?y命令顯示的結(jié)果為：HTMLCONTROLForms.HTML:Option.16HTMLCONTROLForms.HTML:Option.15HTMLCONTROLForms.HTML:Option.14HTMLCONTROLForms.HTML:Option.13HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：A

34.程序執(zhí)行完后，?x命令顯示的結(jié)果為：HTMLCONTROLForms.HTML:Option.16HTMLCONTROLForms.HTML:Option.15HTMLCONTROLForms.HTML:Option.14HTMLCONTROLForms.HTML:Option.13HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：A

35.執(zhí)行命令?AB后，屏幕顯示的結(jié)果是：HTMLCONTROLForms.HTML:Option.1999ABHTMLCONTROLForms.HTML:Option.1999BAHTMLCONTROLForms.HTML:Option.1AB999HTMLCONTROLForms.HTML:Option.1BA999HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：D

36.執(zhí)行命令?VAL(AB)后，屏幕顯示的結(jié)果是：HTMLCONTROLForms.HTML:Option.1BAHTMLCONTROLForms.HTML:Option.1ABHTMLCONTROLForms.HTML:Option.1999HTMLCONTROLForms.HTML:Option.10.00HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：D

37.程序執(zhí)行后，A的值為HTMLCONTROLForms.HTML:Option.113.00HTMLCONTROLForms.HTML:Option.114.00HTMLCONTROLForms.HTML:Option.115.00HTMLCONTROLForms.HTML:Option.116.00HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：C

38.程序執(zhí)行后，B的值為HTMLCONTROLForms.HTML:Option.14.00HTMLCONTROLForms.HTML:Option.15.00HTMLCONTROLForms.HTML:Option.16.00HTMLCONTROLForms.HTML:Option.17.00HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：A

39.程序運(yùn)行到第一個?A,B,C后屏幕顯示的結(jié)果為HTMLCONTROLForms.HTML:Option.125V5HTMLCONTROLForms.HTML:Option.125V0HTMLCONTROLForms.HTML:Option.1FoxProFoxHTMLCONTROLForms.HTML:Option.10V5HTMLCONTROLForms.HTML:Option.1你的答案：0標(biāo)準(zhǔn)答案：D

40.程序運(yùn)行到第二個?A,B,C后屏幕顯示的結(jié)果為HTMLCONTROLForms.HTML:Option.10V15