二级二级VB2010年3月计算机等级考试二级VB试题

试卷预览

• 21要求当鼠标在图片框p1中移动时，立即在图片框中显示鼠标的位置坐标。下面能正确实现上述功能的事件过程是

  A.private sub p1_mousemove(button as integer,shift as integer,x as single, y as single)print x,yend sub

  B.private sub p1_mousedown(button as integer,shift as integer,x as single, y as single)picture.print x,yend sub

  C.private sub p1_mousemove(button as integer,shift as integer,x as single, y as single)p1.print x,yend sub

  D.private sub form_mousemove(button as integer,shift as integer,x as single, y as single)p1.print x,yend sub

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• 22下面程序计算并输出的是private sub comand1_click()a=10s=0dos=s+a*a*aa=a-1loop until a<=0print send sub

  A.1³+2³+3³+…+10³的值

  B.10!+…+3!+2!+1!的值

  C.(1+2+3+…+10)³的值

  D.10个10³的和

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• 23若在窗体模块的声明部分声明了如下自定义类型和数组private type reccode as integercaption as stringend typedim arr(5) as rec则下面的输出语句中正确的是

  A.print arr.code(2),arr.caption(2)

  B.print arr.code,arr.caption

  C.print arr(2).code,arr(2).caption

  D.print code(2),caption(2)

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• 24下面程序运行时，若输入395，则输出结果是private sub comand1_click()dim x%x=inputbox("请输入一个3位整数")print x mod 10,x100,(x mod 100)10end sub

  A.3 9 5

  B.5 3 9

  C.5 9 3

  D.3 5 9

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• 25某人编写了下面的程序，希望能把text1文本框中的内容写到out.txt文件中private sub comand1_click()open "out.txt" for output as #2print "text1"close #2end sub调试时发现没有达到目的，为实现上述目的，应做的修改是

  A.把print "text1"改为print #2,text1

  B.把print "text1"改为print text1

  C.把print "text1"改为write "text1"

  D.把所有#2改为#1

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• 26窗体上有一个名为command1的命令按钮，并有下面的程序：private sub comand1_click()dim arr(5) as integerfor k=1 to 5arr(k)=knext kprog arr()for k=1 to 5print arr(k)next kend subsub prog(a() as integer)n=ubound(a)for i=n to 2 step -1for j=1 to n-1if a(j)t=a(j):a(j)=a(j+1):a(j+1)=tend ifnext jnext iend sub程序运行时，单击命令按钮后显示的是

  A.12345

  B.54321

  C.01234

  D.43210

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• 27下面程序运行时，若输入“visual basic programming”，则在窗体上输出的是private sub comand1_click()dim count(25) as integer, ch as stringch=ucase(inputbox("请输入字母字符串"))for k=1 to len(ch)n=asc(mid(ch,k,1))-asc("a")if n>=0 thencount(n)=count(n)+ 1end ifnext km=count(0)for k=1 to 25if mm=count(k)end ifnext kprint mend sub

  A.0

  B.1

  C.2

  D.3

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