- 基础理论
- 数据及数据库技术
- 人工智能
- 算法理论
- 程序设计语言
- 循环结构
- 分支结构
- 顺序结构
- 类、对象、属性、方法、事件和事件处理的概念
- VB应用程序的界面设计与调试
- 基本数据类型
- 常量、变量、数组
- 常用的标准函数
- 基本运算及表达式
- + 赋值语句
- 选择语句
- 循环语句
- 多媒体理论
- 基础软件操作
- 算法软件操作
- 多媒体软件操作
- 网络技术应用
Sub test3()双重循环运行 输出图形 与3重复,但3已改题
For i =" 1" To___1___step 1
s = ""
For j =" 1" To 2 * i - 1
s =" Str(j)" + s
Next j
List1.AddItem s
Next i
End Sub
该程序的运行后列表框输出的第三行是 ( )
For i =" 1" To___1___step 1
s = ""
For j =" 1" To 2 * i - 1
s =" Str(j)" + s
Next j
List1.AddItem s
Next i
End Sub
该程序的运行后列表框输出的第三行是 ( )
A.33333 | B.55555 | C.12345 | D.54321 |
Sub test1()
a=320
a1="a\100"
a2=(a-100*a1)\10
a3="(a-100*a1-10*a2)"
B=100*a3+10*a2+a1
MsgBox B、
End sub
该程序的运行结果是 ( )
a=320
a1="a\100"
a2=(a-100*a1)\10
a3="(a-100*a1-10*a2)"
B=100*a3+10*a2+a1
MsgBox B、
End sub
该程序的运行结果是 ( )
A.320 | B.32 | C.230 | D.23 |
对数组声明语句:Dim a(0 to 3,0 to 4) As Integer,下面说法不正确的是( )
A.a(1,2)=50000,执行后系统会提示“溢出”错误 |
B.a数组共有12个下标变量 |
C.a(1,2)是a数组中的元素 |
D.若j="1," a(1,0)=3则a(j-1,a(1,0))就是a(0,3) |
下面是一段关于计算变量S的算法,下列能正确描述S的算式是( )
①变量S的初值是0,变量T的初值是1,循环变量A的初值为1;
②循环变量A从1循环到100,且步长为2,做第③步中的2个语句;
③ T="-T:" S=S+A*T
④输出变量S的值
①变量S的初值是0,变量T的初值是1,循环变量A的初值为1;
②循环变量A从1循环到100,且步长为2,做第③步中的2个语句;
③ T="-T:" S=S+A*T
④输出变量S的值
A.1+3+5+7…+100 | B.1+3+5+7…+99 |
C.1-3+5-7…-99 | D.-1+3-5+7…+99 |
理论上,Fix((Timer() Mod 60)*Rnd()+Asc(“F”)- Asc(“A”))的最小值和最大值分别是:( )
A.0,60 | B.5,63 | C.5,64 | D.5,65 |
有以下程序段:
s = 1:j=2
Do While s<j
For j =" 2" To -2 Step -1
s = s*j
Next j
Loop
MsgBox(s)
则s =" s*j" 的执行次数是( )
s = 1:j=2
Do While s<j
For j =" 2" To -2 Step -1
s = s*j
Next j
Loop
MsgBox(s)
则s =" s*j" 的执行次数是( )
A.1 | B.4 | C.5 | D.6 |
Sub test7()
For i =" 1" To 6
S =" S" + (-1) ^ i *2 ^ i
Next i
MsgBox (S)
End sub
该程序的运行结果是( )
For i =" 1" To 6
S =" S" + (-1) ^ i *2 ^ i
Next i
MsgBox (S)
End sub
该程序的运行结果是( )
A.126 | B.-126 | C.-42 | D.42 |
Function f(x As Long, y As Long) As Long
Dim t As Long, r As Long
If x < y Then t =" x:" x =" y:" y = t
r =" x" Mod y
Do While r <> 0
x =" y:" y = r
r =" x" Mod y
Loop
f = y
End Function
-------------------------------------------------------------------------------------------------
Private Sub Command1_Click()
Dim a As Long, b As Long
x = Val(InputBox("x="))
y = Val(InputBox("y="))
a =" x:" b = y
s =" f(x," y)
MsgBox (Str(a * b / s))
End Sub
当x=20,y=6时,以上程序运行后,输出结果是( )
Dim t As Long, r As Long
If x < y Then t =" x:" x =" y:" y = t
r =" x" Mod y
Do While r <> 0
x =" y:" y = r
r =" x" Mod y
Loop
f = y
End Function
-------------------------------------------------------------------------------------------------
Private Sub Command1_Click()
Dim a As Long, b As Long
x = Val(InputBox("x="))
y = Val(InputBox("y="))
a =" x:" b = y
s =" f(x," y)
MsgBox (Str(a * b / s))
End Sub
当x=20,y=6时,以上程序运行后,输出结果是( )
A.2 | B.120 | C.30 | D.60 |
Sub test12()
S=0
Do While c <=5
C ="C" + 1
S=S+C
Loop
MsgBox (STRC、 + STR(S))
End Sub
该程序的运行结果是( )
S=0
Do While c <=5
C ="C" + 1
S=S+C
Loop
MsgBox (STRC、 + STR(S))
End Sub
该程序的运行结果是( )
A.5 15 | B.6 15 | C.5 21 | D.6 21 |
有关下列语句说法不正确的是( )
① If a="b=c" Then Msgbox(“这三个数相等”) Else Msgbox(“这三个数不相等”)
②赋值语句 a=b>c
③赋值语句 a+b=c
④ Msgbox (a+b=c)
① If a="b=c" Then Msgbox(“这三个数相等”) Else Msgbox(“这三个数不相等”)
②赋值语句 a=b>c
③赋值语句 a+b=c
④ Msgbox (a+b=c)
A.语句①能运行,但逻辑上有错误 |
B.语句②能运行,且无任何逻辑错误 |
C.语句③不能运行 |
D.语句④不能运行 |