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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  6B.1  3 5C.9 7 6 1 5 3D.9 7  6  5 3  1
上一题 下一题 0.99难度 选择题 更新时间:2019-04-16 09:20:48

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同类题1

(加试题)某密码的破译步骤如下:
(1)找出文章(以“.”结束)中所有用英文表示的数字(均为小写,数字范围1≤n≤20),单词与数字对应如下:

(2)将这些数字平方后除以100取余,得到两位数如00,04,21,96。
(3)把这些两位数按升序排成一行,组成一个最小的新数,如果新数开头为0,就去除。
(4)步骤(3)找出的最小数即为密码。
小明按照上述方法,设计了一个解密的VB程序,功能如下:单击“解密”按钮Commandl,程序依次将文本框Textl中以空格分隔的每个英文单词取出,若单词属于数字单词,则按解密步骤进行处理,最后在文本框Text2中输出解密结果。
程序运行效果如图所示,请回答下列问题:

(1)若文章内容为“tom bought two apples and five oranges, which cost ten dollars altogether.”,则破译后的密码应为_____________。
(2)请在划线处填入合适的代码。
Dim a(1 To 20) As String
Private Sub Form_Load()
a(1) = "one": a(2) = "two" 
'……将所有数字单词按顺序存入数组a中,代码略
End Sub
Private Sub Command1_Click()
Dim s As String, tmp As String
Dim c as Integer,i As Integer, j As Integer, k As Integer, t As String, ch As As String,code As Long
Dim b(1 To 100) As String   'b数组存放数字单词处理后得到的两位数
s = Text1.Text
c = 0: i = 1: flag = True:t = ""
Do While i <= Len(s)
ch = Mid(s, i, 1)
If ch >= "a" And ch <= "z" Then
t = t + ch
flag = False
ElseIf flag = False Then
For j = 1 To 20
If t = a(j) Then
c = c + 1
b(c) =_________________
End If
Next j
t = ""
flag = True
End If
i = i + 1
Loop
’将b数组中的两位数按数值大小进行升序排序,代码略
For i = 1 To c
t = Val(b(i))
_______________________
Next i
Text2.Text = Str(code)
End Sub
Function decode(num As Integer) As String
Dim mo As Integer
mo = num * num Mod 100
If mo = 0 Then
decode = "00"
ElseIf ___________________  Then
decode = "0" + Trim(Str(mo))
Else
decode = Trim(Str(mo))  'Trim为去除字符串两端空格的函数
End If
End Function