在文本框(text1)中输入,一个任意的四位正整数(全相同的除外,如1111),点击计算按钮,在列表框(List1)中显示计算结果,在标签Label1中显示找到的黑洞数,具体代码如下所示,请完成下列问题:
Dim su(1 To 10) As Integer ‘su(i)数组用来存放原始4位数和每次计算结果
Dim a(1 To 4) As Integer ‘用来存放4位数每一位上的值
Private Sub Command1_Click()
su(1)=Val(Text1.Text)
su(2)=zp(su(1))
p=2
Do While su(p)<>su(p-1)
p=p+1
____①____
Loop
For i=1 To p
List1.AddItem su(i)
Next i
Label1.Caption=Str(su(p))
End Sub
Function zp(m As Integer) As Integer
a(1)=m Mod 10
a(2)=(m\10)Mod 10
a(3)=(m\100) Mod 10
a(4)=m\1000
For i=1 To 3
For j=____②____ 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
Next i
____③____
End Function
①处程序代码为____________________________________。
②处程序代码为____________________________________。
③处程序代码为_____________________________________。
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2