（9）在窗體上畫一個(gè)名稱為Command1的命令按鈕，然后編寫如下程序：
Option Base 1
Private Sub Command1_Click()
Dim a(10) As Integer
For i = 1 To 10
a(i) = i
Next
Call swap（　【13】�。�
For i = 1 To 10
Print a(i);
Next
End Sub
Sub swap(b() As Integer)
n = 【14】
For i = 1 To n / 2
t = b(i)
b(i) = b(n)
b(n) = t
【15】
Next
End Sub
上述程序的功能是，通過調(diào)用過程swap，調(diào)換數(shù)組中數(shù)值的存放位置，即a(1)與a(10)的值互換，a(2)與a(9)的值互換，……，a(5)與a(6)的值互換。請(qǐng)?zhí)羁铡?BR>參考答案
一、選擇題（(1)—(20)每小題2分，(21)—(30)每小題2分，共70分）
(1) B (2) D (3) A (4) A (5) C
(6) D (7) C (8) D (9) B (10) C
(11) A (12) B (13) C (14) D (15) A
(16) B (17) D (18) C (19) C (20) A
(21) B (22) A (23) C (24) A (25) B
(26) C (27) A (28) C (29) D (30) A
二、填空題(每空2分，共30分)
(1) 〖1〗 .bas
(2) 〖2〗 mousedown
〖3〗 popupmenu
(3) 〖4〗 interval
〖5〗 500
(4) 〖6〗 (cos(a+b))^2/(3*x)+5
(5) 〖7〗 Picture1.picture=loadpicture(“c:\moon.jpg”)
(6) 〖8〗 index
〖9〗 font
(7) 〖10〗 tmplabel
〖11〗 tmpCombo
(8) 〖12〗 *(1/i )
(9) 〖13〗a()
〖14〗ubound(b)
〖15〗 n=n-1