题型：单选题 题类：常考题 难易度：普通
浙江省丽水市2018-2019学年高二下学期信息技术期末考试试卷
i = 1
Do While i <= 6
t = Int(Rnd * 10) + 1
If t Mod 2 = i Mod 2 Then a(i) = t : i = i + 1
Loop
For i = 1 To 2
k = 1
For j = 1 To 6 - i * 2
If a(j) * k > a(j + 2) * k Then
t = a(j) : a(j) = a(j + 2) : a(j + 2) = t
End If
k = -k
Next j
Next i
执行该程序段后，数组元素a(1)到a(6)的值可能是（ ）
|
排序前 |
86 |
71 |
5 |
41 |
81 |
79 |
37 |
89 |
|
排序后 |
5 |
37 |
41 |
71 |
79 |
89 |
86 |
81 |
实现上述功能的VB程序如下，但加框处代码有错，请改正。
Const n=8
Dim a(1 To n) As Integer
Private Sub Command1_Click()
Dim i As Integer，j As Integer，k As Integer，t As Integer
Dim flag As Boolean
‘读取一组正整数，存储在数组a中。代码略
For i=1 To n-1
‘(1)
If IsPrime(a(k))Then flag=True Else flag=False
For j=i+1 To n
If IsPrime(a(i))Then
If 
Then ‘(2)
k=j
flag=True
End If
End If
Next j
If k<>i Then
t=a(k)：a(k)=a(i)：a(i)=t
End If
If Not flag Then Exit For ‘Exit For表示退出循环
Next i
‘依次输出排序后的数据。代码略
End Sub
Function IsPrime(m As Integer)As Boolean
‘本函数判断m是否是素数：是素数返问值为True，不是素数返回值为False
‘代码略
End Function
试题篮
