x=0
while(x!=4): #当x=!4时,执行循环
print('1. 添加订单')
print('2. 发货')
print('3. 查看订单列表')
print('4. 退出')
x=int(input("输入你的选择:")) #输入选择项
if A :
y=input("输入订单编号:") #输入订单编号
B #在列表listque中添加订单号
elif x==2:
C #如果订单列表为空
print("订单列表为空")
else:
print("发货单号:"+listque.pop(0))
elif x==3:
print("等待发货:",listque) #查询列表listque中的订单号
print()
input("运行完毕,请按回车键退出...")
(1)此列表,定义的是
(2)补充划线A处的内容
(3)补充划线B处的内容
(4)补充划线C处的内容
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(1)根据题意,如图所示,计时器 Timer1 的 Interval 属性值应设置为
(2)实现上述功能的 VB 程序如下,请在划线处填入合适的代码。
Const n = 28 '参与抽奖的总人数
Private Sub Command1_Click()
If Command1.Caption = "开始" Then
Timer1.Enabled = True
Command1.Caption = "停止"
Else
Timer1.Enabled =
Command1.Caption = "开始"
End If
End Sub
Private Sub Timer1_Timer()
Dim c As Integer
c = Int(Rnd() * n + 1)
End Sub
(3)初始时,按钮 Command1 的标题为“开始”。由上述算法可知,单击 10 次该按钮后,其标题显示为(2)要实现上述功能,请在划线处填入合适代码。
Private Sub Command1_Click()
Randomize '随机数初始化
Dim i As Long, n As Long, s As Long
Dim x As Double, y As Double, z As Double
n = Val(Text1.Text)
s = 0
Do While i <= n ' 随机投点n次
x = Rnd: y = Rnd
z =
If z <= 1 Then
s = s + 1
End If
i = i + 1
Loop
Text2.Text =
请根据算法将下列程序补充完整。
Dim a(1 To 45) As String
Dim b(1 To 45) As Integer
Private Sub Form_Load()
a(1) = "中国"
b(1) = 308
‘45个代表团名称及奖牌数分别放在a(1)到a(45)及b(1)到b(45)中
End Sub
Private Sub Command1_Click()
Dim i As Integer,j As Integer
Dim t As Integer,f As Integer
List1.Clear
For i =" 1" To 3
For j = To 2 Step -1
If Then
f =" a(j):" a(j) =" a(j" - 1): a(j - 1) = f
t =" b(j):" b(j) =" b(j" - 1): b(j - 1) = t
End If
Next j
Next i
For i =" 1" To 3
List1.AddItem "第" + Str(i) + "名" + a(i) + " 奖牌数" + Str(b(i))
Next i
End Sub
(1)鼠标单击按钮Cmd1执行的事件处理过程名是
(2)实现上述功能的VB程序如下,请在划线处填入合适的代码
Private Sub Cmd1_Click()
Dim mdays As String, days As Integer
Dim i As Integer, m As Integer, d As Integer
m =
d = Val(Text2.Text) 'd是天的信息
mdays = "312831303130313130313031" '2019年各个月份对应的天数
days = 0
For i = 1 To m - 1 ’前几个月份的总天数
days = days +
Next i
days = days + d
If days Mod 5 = 4 Or
Label2.Caption = "休息"
Else
Label2.Caption = "上班"
End If
End Sub(3)若文本框text1中输入的内容是4,文本框Text2中输入的内容为3,点按钮后,标签label2中显示的内容是
(1)标题要显示“趣味数学”,需修改窗体的
(2)实现上述功能的VB程序如下,请在程序划线处填入合适代码。
Private Sub Command1_Click()
Dim s As String, s1 As String, s2 As String
Dim c As Integer, k As Integer, i As Integer, flag As Boolean
flag = False
s = Text1.Text
For c = 1 To Len(s)
If
Next c
s1 = Mid(s, 1, c - 1)
s2 = Mid(s, c + 1,len(s)-c)
k =
For i = 1 To k - 1
If Val(Mid(s1, 1, i)) + Val(Mid(s1, i + 1,c-i-1)) = Val(s2) Then
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End If
Next i
If Not flag Then List1.AddItem "等式始终无法成立!"
End Sub