【加试题】某VB 程序代码如下:
Function arr(x As Integer) As Boolean
Dim s As Integer, i As Integer
s = 1
For i = 2 To x \ 2
If x Mod i = 0 Then s = s * i
Next i
If s = x Then
arr = True
Else
arr = False
End If
End Function
Private Sub Command1_Click()
Dim i As Integer
For i = 2 To 10
If arr(i) Then List1.AddItem str(i)
Next i
End Sub
单击Command1 按钮后, List1 中显示的结果是( )
Function arr(x As Integer) As Boolean
Dim s As Integer, i As Integer
s = 1
For i = 2 To x \ 2
If x Mod i = 0 Then s = s * i
Next i
If s = x Then
arr = True
Else
arr = False
End If
End Function
Private Sub Command1_Click()
Dim i As Integer
For i = 2 To 10
If arr(i) Then List1.AddItem str(i)
Next i
End Sub
单击Command1 按钮后, List1 中显示的结果是( )
A.2、3、4、5、6 | B.2、4、6 | C.4、6、8 | D.6、8、10 |
更新时间:2020-02-24 23:21:34
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【推荐1】python中表达式4**3=( )。
A.12 | B.1 | C.64 | D.7 |
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【推荐2】在VB语言中表示“x属于区间(0,1]”的正确表达式是( )
A.0<x and x<=1 |
B.0<x<=1 |
C.x>0 and x<1 |
D.x>0 or x<=1 |
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【推荐1】通过调查发现,人们普遍认为带有数字2、6、8的车牌比较吉利,而带有数字4的车牌则不吉利。小石想通过编写程序来计算车牌的吉利值:其中数字2吉利值为1,数字6吉利值为2,数字8吉利值为3,数字4的吉利值为-2、其他数字吉利值为0。如车牌号“浙H94286”的吉利值为4。程序代码如下::
dic={ "2":1,"6":2,"8":3,"4":-2 }
cp=input(”请输入车牌号(格式如“浙H94286”):")
count=0
for i in range(2,① ):
为实现功能,划线处代码应为( )
dic={ "2":1,"6":2,"8":3,"4":-2 }
cp=input(”请输入车牌号(格式如“浙H94286”):")
count=0
for i in range(2,① ):
x=cp[i]
if x in ["2","4","6","8"]:
count+= ②
print("该车牌号的吉利值为:",count)为实现功能,划线处代码应为( )
A.①len(cp)-1 ②dic[x] | B.①len(cp) ②dic[int(x)] |
C.①len(cp)-1 ②dic[int(x)] | D.①len(cp) ②dic[x] |
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【推荐2】某VB程序代码如下:
For i = 1 To 3
For j = 5 To i Step -1
If a(j) < a(j + 1) Then
t = a(j): a(j) = a(j + 1): a(j + 1) = t
End If
Next j
List1.AddItem Str(a(i))
Next i
数组元素 a(1)到 a(6)的数据依次为“1,5,7,6,9,3”,经过该程序段加工后,列表框 list1 中显示的内容是( )A.9 7 6 | B.1 3 5 | C.9 7 6 1 5 3 | D.9 7 6 5 3 1 |
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