题型:综合题 题类:常考题 难易度:困难
浙江省名校协作体2019届高三上学期信息技术9月联考试卷
⑴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:
⑵将这些数字平方后除以100取余,得到两位数如00,04,21,96。
⑶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。
⑷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Command1,程序依次将文本框Text1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:
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
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