2016电大《visual basic程序设计》课程期末复习考试资料小抄

电大VISUALBASIC程序设计课程期末复习考试资料小抄一、单项选择题1如果要设置窗体的标题栏，应选择（B）属性。AVISIBLEBCAPTIONCNAMEDTEXT2要使命令按钮不响应用户生成的事件，应设置命令按钮的（D）属性。AVISIBLEBCAPTIONCENABLEDENABLED3要使标签能透出窗体的背景，应设置标签的（A）属性。ABACKSTYLEBBORDERSTYLECAPPEARANCEDBACKCOLOR4以下控件中，（A）控件不会影响到界面设计效果。A计时器B文本框C标签DLINE控件5在VISUALBASIC中，一般（B）属性用来设置字体的颜色。AFONTCOLORBFORECOLORCBACKCOLORDSHOWCOLOR6在VB中断模式下，可用调试窗口监视表达式和变量的值，其中在（A）窗口中可以直接键入命令以显示命令所请求的信息。A立即B监视C本地D中断7某计时器控件的INTERVAL属性为0时，表示（A）。A计时器关闭计时CTIMER事件的间隔时间为0毫秒BTIMER事件的间隔时间为0秒D计时器启动计时8在窗体FORM1的CLICK事件过程中有以下语句LABEL1CAPTION“VISUALBASIC“若本语句执行之前，标签控件的CAPTION属性为默认值，则标签控件的NAME属性和CAPTION属性在执行本语句之前的值分别为（B）。ALABEL和LABELBLABEL1和LABEL1CLABEL1和VISUALBASICDLABEL和CAPTION9（C）控件不具有CAPTION属性。ALABELBFORMCTEXTBOXDCOMMANDBUTTON10改变控件在窗体中的上下位置，应设置控件的（A）属性。ATOPBLEFTCWIDTHDRIGHT11文本框中选定的内容，由下列（C）属性反映。ATEXTBCAPTIONCSELTEXTDSELLENGHT12在VISUALBASIC中，变量的默认类型是（D）。ASTRINGBINTEGERCDOUBLEDVARIANT13假设已定义INTEGER变量X、Y，则以下赋值语句正确的是（C）。AX1YBXYCYXYD1X14、/、MOD、四个算术运算符中，优先级别最低的是（C）。AB/CMODD15下列哪组语句可以将变量A、B值互换（B）。AACCBBABAABBABAABCABBADAAB/2BAB/216以下语句的输出结果是（C）。PRINTFORMAT325485,“000,00000”A325485B32,5485C032,54850D32,5485017表达式4567/8MOD9的值是（B）。A4B5C6D718函数INTRND10是在（C）范围内的整数。A（0,10）B0,10C0,10）D0,1019下面（A）运算符是算术运算符。AMODBLIKECANDDNOT20已知三个变量A、B、C，判断A、B、C能否构成三角形的逻辑表达式为（B）。AABANDBCANDACBACBANDABCANDBCACACBORABCORBCADACBANDABCORBCA21下面程序段运行后，显示的结果是（B）。DIMINTXASINTEGERIFINTXTHENPRINTINTXELSEPRINTINTX1ENDIFA0B1C2D不一定22以下程序的输出结果是（C）。DIMA,I,SUMAARRAY4,3,2,1FORI0TO3SUMSUMAINEXTIPRINTSUMA4B6C10D不一定23在过程中定义的变量，若希望在离开该过程后，还能保存过程中局部变量的值，则应使用（D）关键字在过程中定义局部变量。ADIMBPUBLICCPRIVATEDSTATIC24能通过（D）来删除列表框中的选择项。ALIST属性BTEXT属性CCLEAR方法DREMOVEITEM方法25LISTBOX中若没有任何条目选中，其LISTINDEX属性值为（A）。A1B0C1D任意26可通过（C）属性判断LISTBOX列表框控件的项目总数目。ALISTINDEXBLISTTEXTCLISTCOUNTD随机数27列表框的（B）属性用于返回或设置列表框中各列表项的文本。ASELECTEDBLISTCTEXTDCAPTION28设LIST1为列表框控件，LIST1CLEAR中的CLEAR是（A）。A方法B对象C属性D事件29以下（D）语句将删除列表框LIST1中的最后一项。ALIST1REMOVEITEMLIST1LISTCOUNTBLIST1CLEARCLIST1LISTLIST1LISTCOUNT1“DLIST1REMOVEITEMLIST1LISTCOUNT130若要把“XXX”添加到列表框LIST1中的第三项，则可执行语句（B）。ALIST1ADDITEM“XXX“,3BLIST1ADDITEM“XXX“,2CLIST1ADDITEM3,“XXX“DLIST1ADDITEM2,“XXX“31用户可以通过设置菜单项的（C）属性值为FALSE来使该菜单项失效。AHIDEBVISIBLECENABLEDDCHECKED32用户可以通过设置菜单项的（B）属性值设置为FALSE来使该菜单项不可见。AHIDEBVISIBLECENABLEDDCHECKED33菜单编辑器中，同层次的（B）属性值设置为相同，才可以设置索引值。ACAPTIONBNAMECINDEXDSHORTCUT34每创建一个顶级菜单，它的下面最多可以有（C）级子菜单。A1B3C5D635在设计菜单时，为了创建分隔栏，要在（B）中输入字符（）。A名称栏B标题栏C索引栏D显示区36如果要在程序中显示一个弹出菜单，需调用（D）方法。APRINTBMOVECREFRESHDPOPUPMENU37当单击工具栏上的按钮，会触发的事件是（A）。ABUTTONCLICKBCHANGECLOADDKEYPRESS38下列可以用来存储图像可以供其它控件使用的控件是（C）。ATOOLBARBSTATURSBARCIMAGELISTDTREEVIEW39在VISUALBASIC中按文件的访问方式不同，可以将文件分为（B）。A文本文件和数据文件B顺序文件、随机文件和二进制文件CASCII文件和二进制文件D数据文件和可执行文件40检测文件是否结束的函数是（C）。ALOFBLENCEOFDCHR41要读出C盘根目录下的顺序文件STUDTXT中的内容，下列打开方式中（C）是正确的。AOPEN“CSTUDTXT“FORAPPENDAS1BOPEN“CSTUDTXT“FORRANDOMAS1COPEN“CSTUDTXT“FORINPUTAS1DOPEN“CSTUDTXT“FOROUTPUTAS142随机文件使用（C）语句写数据。AINPUTBWRITECPUTDGET43随机文件使用（D）语句读数据。AINPUTBWRITECPUTDGET44程序运行时，驱动器列表框下列（A）属性能返回磁盘驱动器的名称。ADRIVEBDRIVENAMECCHGDRIVEDDRIVES45要用通用对话框控件显示标准的“字体”对话框，应调用其（C）方法。ASHOWOPENBSHOWCOLORCSHOWFONTDSHOWSAVEAS46改变驱动器列表框的DRIVE属性值将激活其（A）事件。ACHANGEBSCROLLCKEYDOWNDKEYUP47使用目录列表框的（B）属性可以返回或设置当前工作目录的完整路径（包括驱动器盘符）。ADRIVEBPATHCDIRDLISTINDEX48在随机文件中（D）。A记录的内容是随机产生的B记录的长度是任意的C记录号是通过随机数产生的D可以通过记录号随机读取记录49执行语句OPEN“CSTUDTXT“FORINPUTAS2后，系统（C）。A将内存数据存放在C盘当前文件夹下名为STUDTXT的文件中B将某个磁盘文件的内容写入C盘当前文件夹下名为STUDTXT的文件中C打开C盘当前文件夹下名为STUDTXT的文件，用来读取文件内容D在C盘当前文件夹下建立名为STUDTXT的顺序文件50下面对象中不能作为容器的是（B）。A窗体BIMAGE控件CPICTUREBOX控件DFRAME控件51要向图片框PICP中加载“DHAINANZHIWUBMP”图像文件，应使用语句（C）。APICTURE1PICTURE“DHAINANZHIWUBMP“BPICTURE1PICTURELOADPICTURE“DHAINANZHIWUBMP“CPICPPICTURELOADPICTURE“DHAINANZHIWUBMP“DPICPPICTURELOADPICTUREDHAINANZHIWUBMP52执行FORM1SCALE（0,10）（10,10）语句后，FORM1窗体坐标系X轴和Y轴的正方向是（A）。A向右和向上B向左和向下C向右和向下D向左和向上53下列图形中不能使用SHAPE控件绘制的是（B）。A矩形B三角形C正方形D椭圆54LINE（100，100）STEP（400，400）将在窗体中的（C）画一条直线。A（200，200）到（400，400）B（100，100）到（300，300）C（100，100）到（500，500）D（100，100）到（400，400）55RGB函数通过红、绿、蓝三基色混合产生某种颜色，若使用三个滚动条分别输入三种基色，为保证输入数值有效，则应设置滚动条的（A）属性。AMAX和MINBSMALLCHANGE和LARGECHANGECSCROLL和CHANGEDVALUE56如果在图片框上使用绘图方法绘制一个圆，则图片框的（B）属性决定了该圆的颜色。ABACKCOLORBFORECOLORCFILLCOLORDDRAWSTYLE57键盘事件的执行顺序是（B）。AKEYPRESS，KEYDOWN，KEYUPBKEYDOWN，KEYPRESS，KEYUPCKEYUP，KEYDOWN，KEYPRESSDKEYUP，KEYPRESS，KEYDOWN58ADO控件属于ACTIVEX控件，使用之前必须加载MICROSOFTADODATACONCTROL60（OLEDB），将ADO控件添加到工具箱中。添加ADO控件的菜单为（B）。A“工程”“引用”B“工程”“部件”C“工具”“选项”D“工程”“添加文件”59利用ADO访问数据库，首先要创建一个（A）对象，用于建立和数据库的连接。ACONNECTION对象BRECORDSET对象CCOMMAND对象DOBJECT对象60SQL语言的SELECT语句中，用于分组的语句为（B）。AWHEREBGROUPBYCORDERBYDHAVING61以下四个控件，不属于数据绑定控件的是（C）。ATEXT控件BDATAGRID控件COPTION控件DLABEL控件62决定系统是否自动检测多媒体控件（MMCONTROL）各按钮的状态的属性是（B）。AENABLEBAUTOENABLECPLAYENABLEDD以上答案都不正确63将多媒体控件（MMCONTROL）的FRAMES属性设为3，则以下叙述正确的是（A）。A指定BACK或STEP命令后退或前进的帧数都为3B只有BACK命令后退的帧数为3C只有STEP命令前进的帧数为3D后退或前进的帧数都为664多媒体控件（MMCONTROL）具有一组执行MCI命令的下压式按钮。其中RECORD按钮表示为（B）。A前一首B录制C弹出D播放65为了使多媒体控件（MMCONTROL）中的录制按钮不显示，应添加代码（C）。AMMCONTROL1VISIBLEFALSEBMMCONTROL1VISIBLETRUECMMCONTROL1RECORDVISIBLEFALSEDMMCONTROL1RECORDVISIBLETRUE66在多媒体控件（MMCONTROL）中，DEVICETYPE属性用于设置多媒体设备的类型，如果将要播放的文件是CD歌曲，应将DEVICETYPE属性设置为（D）。ADIGITALVIDEOBWAVEAUDIOCAVIVIDEODCDAUDIO67WINDOWSMEDIAPLAYER控件的UIMODE属性，表示播放器界面模式，以下选项是播放器模式的属性值是（D）。AFULLBMINICNONED以上都是68在WINDOWSMEDIAPLAYER控件中，决定播放文件是否全屏的属性是（A）。AFULLSCREENBFULLCSCREENDSTRETCHTOFIT二、填空题1数学表达式COX2X写成等价的VISUALBASIC表达式为COSX2SQRX2Y2/2。21YX2数学表达式写成等价的VISUALBASIC表达式为101/2COS50314/180或者SQR1005COS1COS50314/180。3数学式子对应的VISUALBASIC运算表达式是SQRSSASBSCCBA。4将1X1ANDXBANDNOTCAORCBANDC0THENINTOP1INTOP1INTOP1MODINTOP2ENDIFENDSELECTLBLQUESTION为标签LBLQUESTIONCAPTIONINTOP1DATASOURCEDXSMDB“IFADOCNISNOTHINGTHENSETADOCNNEWCONNECTIONADOCNOPENSTRACCESSENDIFFRMMAINSHOWFRMMAIN为窗体ENDSUB该段程序的功能是建立数据库的连接。实现与D盘根目录下的文件名为XSMDB的ACCESS数据库的连接，同时显示FRMMAIN窗体。11阅读以下程序，写出其功能。PUBLICADOCNASCONNECTIONPUBLICADORSASNEWRECORDSETPRIVATESUBCMDADD_CLICKDIMSTRSQLASSTRING文本框TXTNO、TXTNAME和组合框CBOSEX、CBOCLASS分别用来输入学号、姓名、性别和班级STRSQL“SELECTFROM学生表WHERE学号“TXTNOTEXT“ADORSOPENSTRSQL,ADOCNIFNOTADORSEOFTHENMSGBOX“该记录已经存在，不能继续增加“,VBCRITICALVBOKONLYADORSCLOSEEXITSUBENDIFSTRSQL“INSERTINTO学生表学号,姓名,性别,班级“STRSQLSTRSQL“VALUES“TXTNOTEXT“,“TXTNAMETEXT“,“STRSQLSTRSQL“CBOSEXTEXT“,“TXTCLASSTEXT“ADOCNEXECUTESTRSQLENDSUB该段程序的功能是把一个学生记录插入到学生表中。首先查找数据表中是否存在文本框TXTNO中输入的学号，如果存在则不增加；如果不存在，则把该学生的信息记录插入学生表中。四、程序设计题1编写一个程序。程序初始界面如图1左图所示，设“学习目的”、“学习方法”和“退出”命令按钮的名称定义为CMDAIM、CMDWAY和CMDEXIT，标签控件的名称定义为LBLCONTENT。单击“学习目的”按钮，显示如图1的中图所示；单击“学习方法”命令按钮，显示如图1的右图所示；单击“退出”按钮时，退出程序。图1PRIVATESUBCMDAIM_CLICKLBLCONTENTCAPTION“开发WINDOWS应用程序“ENDSUBPRIVATESUBCMDWAY_CLICKLBLCONTENTCAPTION“从实际应用程序的开发过程中学习VB“ENDSUBPRIVATESUBCMDEXIT_CLICKENDENDSUB2设计一个简单的加法程序，程序界面设计如图2所示。设第一操作数、第二操作数和计算结果文本框的名称分别定义为TXTFIRSTNUM、TXTSECONDNUM和TXTSUM，“计算”命令按钮的名称定义为CMDSUM。图2PRIVATESUBCMDSUM_CLICKTXTSUMTEXTVALTXTFIRSTNUMTEXTVALTXTSECONDNUMTEXTENDSUB3编写一个数制转换程序，运行界面如图3所示。设三个文本框的名称框定义分别为TXTDEC、TXTHEX和TXTOCT。实现在第一个文本框中输入十进制数后，第二个文本框自动显示该数对应的十六进制数，第三个文本框自动显示该数对应的八进制数。提示利用文本框的CHANGE事件和转换函数HEX、OCT。图3PRIVATESUBTXTDEC_CHANGETXTHEXTEXTHEXVALTXTDECTEXTTXTOCTTEXTOCTVALTXTDECTEXTENDSUB4编写一个猜数字程序。程序产生一个随机数，由用户来猜这个数，并提示用户猜的数是否太大或太小，程序运行界面如4所示，设输入文本框的名称框定义为TXTANSWER，神秘的数、评价标签控件的名称框定义为LBLCOMMENT和LBLNUM，“确定”命令按钮的名称定义为CMDOK。图4DIMINTNUMASINTEGER用于存放“神秘的数”DIMINTCOUNTASINTEGER用于猜数计数PRIVATESUBCMDOK_CLICKINTCOUNTINTCOUNT1计数IFVALTXTANSWERTEXTINTNUMTHEN猜对LBLCOMMENTCAPTION“猜对了你一共猜了“KEYCODE,“SHIFT“SHIFTENDIFENDSUBPRIVATESUBFORM_KEYPRESSKEYASCIIASINTEGERPRINT“KEYPRESS事件KEYASCII“KEYASCII“按下了“CHRKEYASCIIENDSUB10有以下3个数据表学生表STUDENT_INFOSTUDENT_ID,STUDENT_NAME,STUDENT_SEX,STUDENT_CLASS，分别表示学号、姓名、性别、班级，各字段数据类型都是文本。课程表COURSE_INFOCOURSE_ID,COURSE_NAME,COURSE_CREDIT，分别表示课程号、课程名、学分，课程号、课程名为文本类型，学分为数字类型。成绩表MARK_INFOSTUDENT_ID,COURSE_ID,MARK，分别表示学号、课程号、成绩，其中学号、课程号为文本类型，MARK为数字类型。写出下列功能的SQL语句插入一个新课程记录（课程号A001；课程名英语1；学分5）修改学号为“95020”，课程号为“A001”的成绩为85查询所有学生的基本信息，使用中文作为查询结果的各字段的名称统计出各个班级的人数查询出学号为“95020”所选修的课程名和成绩，以及姓名INSERTINTOCOURSE_INFOVALUESA001,英语,5UPDATEMARK_INFOSETMARK85WHERESTUDENT_ID95020ANDCOURSE_IDA001SELECTSTUDENT_IDAS学号,STUDENT_NAMEAS姓名,STUDENT_SEXAS性别,STUDENT_CLASSAS班级FROMSTUDENT_INFOSELECTSTUDENT_CLASS,COUNTFROMSTUDENT_INFOGROUPBYSTUDENT_CLASSSELECTSTUDENT_NAMEAS姓名,COURSE_NAMEAS课程名,MARKAS成绩FROMSTUDENT_INFO,COURSE_INFO,MARK_INFOWHERESTUDENT_INFOSTUDENT_IDMARK_INFOSTUDENT_IDANDCOURSE_INFOCOURSE_IDMARK_INFOCOURSE_IDANDSTUDENT_INFOSTUDENT_ID9502011编写使用ADO对象中的CONNECTION对象连接SQLSERVER数据库的代码。PUBLICADOCNASCONNECTIONPUBLICSUBMAINDIMSTRSQLSERVERASSTRINGSTRSQLSERVER“PROVIDERSQLOLEDBSERVERLOCALUSERIDSA_PASSWORDSADATABASEXS“IFADOCNISNOTHINGTHENSETADOCNNEWCONNECTIONADOCNOPENSTRSQLSERVER连接SQLSERVER数据库ENDIFENDSUB请您删除一下内容，O_O谢谢2016年中央电大期末复习考试小抄大全，电大期末考试必备小抄，电大考试必过小抄ACETYLCHOLINEISANEUROTRANSMITTERRELEASEDFROMNERVEENDINGSTERMINALSINBOTHTHEPERIPHERALANDTHECENTRALNERVOUSSYSTEMSITISSYNTHESIZEDWITHINTHENERVETERMINALFROMCHOLINE,TAKENUPFROMTHETISSUEFLUIDINTOTHENERVEENDINGBYASPECIALIZEDTRANSPORTMECHANISMTHEENZYMENECESSARYFORTHISSYNTHESISISFORMEDINTHENERVECELLBODYANDPASSESDOWNTHEAXONTOITSEND,CARRIEDINTHEAXOPLASMICFLOW,THESLOWMOVEMENTOFINTRACELLULARSUBSTANCECYTOPLASMACETYLCHOLINEISSTOREDINTHENERVETERMINAL,SEQUESTEREDINSMALLVESICLESAWAITINGRELEASEWHENANERVEACTIONPOTENTIALREACHESANDINVADESTHENERVETERMINAL,ASHOWEROFACETYLCHOLINEVESICLESISRELEASEDINTOTHEJUNCTIONSYNAPSEBETWEENTHENERVETERMINALANDTHEEFFECTORCELLWHICHTHENERVEACTIVATESTHISMAYBEANOTHERNERVECELLORAMUSCLEORGLANDCELLTHUSELECTRICALSIGNALSARECONVERTEDTOCHEMICALSIGNALS,ALLOWINGMESSAGESTOBEPASSEDBETWEENNERVECELLSORBETWEENNERVECELLSANDNONNERVECELLSTHISPROCESSISTERMEDCHEMICALNEUROTRANSMISSIONANDWASFIRSTDEMONSTRATED,FORNERVESTOTHEHEART,BYTHEGERMANPHARMACOLOGISTLOEWIIN1921CHEMICALTRANSMISSIONINVOLVINGACETYLCHOLINEISKNOWNASCHOLINERGICACETYLCHOLINEACTSASATRANSMITTERBETWEENMOTORNERVESANDTHEFIBRESOFSKELETALMUSCLEATALLNEUROMUSCULARJUNCTIONSATTHISTYPEOFSYNAPSE,THENERVETERMINALISCLOSELYAPPOSEDTOTHECELLMEMBRANEOFAMUSCLEFIBREATTHESOCALLEDMOTORENDPLATEONRELEASE,ACETYLCHOLINEACTSALMOSTINSTANTLY,TOCAUSEASEQUENCEOFCHEMICALANDPHYSICALEVENTSSTARTINGWITHDEPOLARIZATIONOFTHEMOTORENDPLATEWHICHCAUSECONTRACTIONOFTHEMUSCLEFIBRETHISISEXACTLYWHATISREQUIREDFORVOLUNTARYMUSCLESINWHICHARAPIDRESPONSETOACOMMANDISREQUIREDTHEACTIONOFACETYLCHOLINEISTERMINATEDRAPIDLY,INAROUND10MILLISECONDSANENZYMECHOLINEST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