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