题型:综合题 题类:常考题 难易度:困难
浙江诸暨中学2018-2019学年高二上学期信息技术期中考试试卷
Private Sub Command1_Click()
Dim a(1 To 100) As Integer
x = Val(Text1.Text)
y = Val(Text2.Text)
For i = 1 To 100
(1)
List1.AddItem Str(a(i))
Next i
For i = x To y - 1
k = i
For (2)
If a(k) > a(j) Then k = j
Next j
If k <> i Then
t = a(k): a(k) = a(i): a(i) = t
End If
Next i
For i = x To y
List2.AddItem Str(a(i))
Next i
End Sub
⑴ ⑵
原始数据:
a(1) |
a(2) |
a(3) |
a(4) |
1 |
2 |
3 |
4 |
方法一:
①向右旋转1步:
a(1) |
a(2) |
a(3) |
a(4) |
4 |
1 |
2 |
3 |
②向右旋转2步:
a(1) |
a(2) |
a(3) |
a(4) |
3 |
4 |
1 |
2 |
③向右旋转3步:
a(1) |
a(2) |
a(3) |
a(4) |
2 |
3 |
4 |
1 |
方法二:
①将a(1)值放至旋转3个位置后位置a(4):
a(1) |
a(2) |
a(3) |
a(4) |
1 |
2 |
3 |
1 |
②将原a(4)值放至旋转3个位置后位置a(3):
a(1) |
a(2) |
a(3) |
a(4) |
1 |
2 |
4 |
1 |
③将原a(3)值放至旋转3个位置后位置a(2):
a(1) |
a(2) |
a(3) |
a(4) |
1 |
3 |
4 |
1 |
④将原a(2)值放至旋转3个位置后位置a(1):
a(1) |
a(2) |
a(3) |
a(4) |
2 |
3 |
4 |
1 |
有n个数存储在数组a中,给定一个整数p(1≤p≤n),将数组a的前p个数与后n-p个数分别向右旋转k次。例如数组a的各个数值分别是1,2,3,4,5,6,7,当p=4,k=1时,旋转后的结果为4,1,2,3,7,5,6。小明为此编写了VB程序,功能如下:在文本框Text2、Text3中依次输入p和k的值,单击“旋转数组”按钮Command1后,数组旋转后结果显示在Text4中。程序运行界面如图1所示,请回答下列问题:
图1
试题篮