1开机自启动:只要把程序快捷方式放到文件夹“C:\Documents and Settings\用户名\「开始」菜单\程序\启动\”就行了。
2启动后能自动最小化:我在程序中设置为最小化到系统托盘区的。
3关闭某123exe进程:关闭进程可以使用这个语句Call Shell("cmdexe /c taskkill /im 123exe /f", vbHide)。启动则用这个语句Call Shell("123exe", vbHide)'启动程序123exe,最好写成全路径,如:D:\123\123exe
在窗体上添加两个Timer控件
代码如下:
Option Explicit
Private Const MAX_TOOLTIP As Integer = 64
Private Const NIF_ICON = &H2
Private Const NIF_MESSAGE = &H1
Private Const NIF_TIP = &H4
Private Const NIM_ADD = &H0 '添加图标到任务栏提示区
Private Const NIM_MODIFY = &H1 '修改系统状态栏中的图标
Private Const NIM_DELETE = &H2 '删除系统状态栏中的图标
Private Const WM_USER = &H400
Private Const WM_MOUSEMOVE = &H200
Private Const WM_LBUTTONDOWN = &H201
Private Const WM_LBUTTONUP = &H202
Private Const WM_LBUTTONDBLCLK = &H203
Private Const WM_RBUTTONDOWN = &H204
Private Const WM_RBUTTONUP = &H205
Private Const WM_RBUTTONDBLCLK = &H206
Private Type NOTIFYICONDATA
cbSize As Long '需填入NOTIFYICONDATA数据结构的长度
hwnd As Long '设置成窗口的句柄
uID As Long '为图标所设置的ID值
uFlags As Long '设置uCallbackMessage,hIcon,szTip是否有效
uCallbackMessage As Long '消息编号
hIcon As Long '显示在状态栏上的图标
szTip As String MAX_TOOLTIP '提示信息
End Type
Private Declare Function Shell_NotifyIcon Lib "shell32dll" Alias "Shell_NotifyIconA" _
(ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
'返回值 Long,非零表示成功,零表示失败
Private nfIconData As NOTIFYICONDATA
Dim T1 As Long, nT1 As Long
Dim T2 As Long, nT2 As Long
Private Sub Form_Load()
'设置系统托盘区图标的属性
nfIconDatahwnd = Mehwnd
nfIconDatauID = MeIcon
nfIconDatauFlags = NIF_ICON Or NIF_MESSAGE Or NIF_TIP
nfIconDatauCallbackMessage = WM_MOUSEMOVE
nfIconDatahIcon = MeIconHandle
nfIconDataszTip = "123" & vbNullChar
nfIconDatacbSize = Len(nfIconData)
'添加系统托盘区图标
Call Shell_NotifyIcon(NIM_ADD, nfIconData)
T1 = 0: nT1 = 3600 8
T2 = 0: nT2 = 60
Timer1Interval = 1000
Timer2Interval = 1000
Timer1Enabled = True
Timer2Enabled = False
MeHide
End Sub
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Dim lMsg As Single
'获得鼠标在系统托盘区的事件,鼠标左键双击
lMsg = X / ScreenTwipsPerPixelX
If lMsg = WM_LBUTTONDBLCLK Then Unload Me
End Sub
Private Sub Form_Unload(Cancel As Integer)
'去掉系统托盘区的图标
Call Shell_NotifyIcon(NIM_DELETE, nfIconData)
End Sub
Private Sub Timer1_Timer()
T1 = T1 + 1
If T1 >= nT1 Then
T1 = 0
'关掉进程程序名为123exe的程序
Call Shell("cmdexe /c taskkill /im 123exe /f", vbHide)
Timer1Enabled = False
Timer2Enabled = True
End If
End Sub
Private Sub Timer2_Timer()
T2 = T2 + 1
If T2 >= nT2 Then
T2 = 0
'启动程序123exe,最好写成全路径,如:D:\123\123exe
Call Shell("123exe", vbHide)
Timer2Enabled = False
Timer1Enabled = True
End If
End Sub
1、创建控件组的方法
首先创建一个命令按钮,调整其大小(觉得合适就行),名称为Command1,Caption 属性为数字 0 ;然后进行“复制”和“粘贴”,当选择“粘贴”时,出现对话框提示已有一个同名控件,询问是否创建控件组,选择“是”后,即创建了一个名为“Command”的控件组。
这时,第一个按钮的Index属性值默认为“0”,第二个的Index属性值自动设为“1”,并且大小与第一个按钮相同,只需修改其 Caption 属性为数字“1”并将其拖至合适位置即可。此后继续使用“粘贴”的方法建立其他控件组中其余按钮,共20个按钮,每建立一个,就将它拖到合适处,并修改相应的Caption属性值。
2、各控件组其属性设置如下:
设置效果如下图所示:
二、编写代码
Dim s1 As Single, s2 As Single, ysf As String
‘定义两个单精度数变量用与存放参与运算的数,一个字符型存放运算符
Private Sub Command1_Click(Index As Integer)
Text1Text = Text1Text & Command1(Index)Caption ’将command1的单击事件与文本框显示的内容连接
End Sub
Private Sub Command2_Click()
Text1Text = Text1Text + “。”
If (InStr(Text1Text, “。”) = 1) Then ‘第一位不能为小数
Text1Text = “”
End If
If InStr(Text1Text, “。”) 《 Len(Text1Text) Then ’防止出现两个小数点
Text1Text = Left
(Text1Text, Len(Text1Text) - 1)
End If
End Sub
Private Sub
Command3_Click()
s2 = Val(Text1Text) ‘开始加减乘除运算
Select Case ysf Case “+”
Text1Text = s1 + s2
Case “-”
Text1Text = s1 - s2
Case “”
Text1Text = s1 s2
Case “/”
If s2 = 0 Then
MsgBox “分母不能为零!”
Text1Text = “”
Else
Text1Text = s1 / s2 End If End Select
Text1 = IIf(Left(Text1Text, 1) = “。”, 0 & Text1Text, Text1Text) ‘
这个很关键,如果没有这个的话,得出小于1的小数前面没有0
End Sub
Private Sub Command4_Click()
If Text1Text = “” Then ’文本为空就结束
Exit Sub
End If
Text1Text = Left(Text1Text, Len(Text1Text) - 1) ‘文本退一格
End Sub
Private Sub Command5_Click()
Text1Text = “” ’清除当前框内文本
End Sub
Private Sub Command6_Click(Index As Integer)
s1 = Val(Text1Text) ‘将s1隐藏起来 ysf = Command6(Index)Caption
Text1Text = “”
End Sub
Private Sub Command7_Click()
If Left(Text1Text, 1) 《》 “-” Then ’判断作为负数
Text1Text = “-” & Text1Text
Else
Text1Text = Right(Text1Text, Len(Text1Text) - 1)
End If
End Sub
Private Sub Command8_Click()
Text1Text = Text1Text Text1Text ‘平方
End Sub
Visual Basic(VB)是由微软公司开发的包含环境的事件驱动编程语言。它源自于BASIC编程语言。VB拥有图形用户界面(GUI)和快速应用程序开发(RAD)系统,可以轻易的使用DAO、RDO、ADO连接数据库,或者轻松的创建ActiveX控件。程序员可以轻松地使用VB提供的组件快速创建一个应用程序。
参考链Visual Basic——百度百科接
vb编写hello world 程序可以参考下面的代码:
Private Sub Form_Load()
MsgBox ("Hello World")
End Sub
在窗体上单击即可运行程序。
扩展资料:
相关参考函数:
MsgBox 常数 与MsgBox 函数一起使用的常数列表。
MsgBox 函数: 在对话框中显示消息,等待用户单击按钮,并返回表示用户所击按钮的数值。
乘法运算符 () :两数相乘。
取反运算符 (-): 表示数值表达式的相反数。
Not 运算符: 执行表达式的逻辑“非”运算。
Month 函数: 返回月份,取值范围为 1 至 12。
参考资料来源:百度百科-Visual Basic
既然是选择题,那肯定有很多题,你可以在页面当中添加一个“下一题”的按钮,再把这个按钮的TabIndex属性设置为0,这样在显示页面时,默认选中的是“下一题”的这个按钮,这样的页面才比较最合理。
PS:在做选择题这样的程序时,最好采用数据库编程,就是将题目和答案都放在数据库中,每次执行时,题目都是从数据库中提取,这样即使题目有上百题,VB中只要有一个界面就行了,这样更加方便。
Private
Declare
Function
FindWindow
Lib
"user32"
Alias
"FindWindowA"
(ByVal
lpClassName
As
Any,
ByVal
lpWindowName
As
String)
As
Long
Private
Declare
Function
SendMessage
Lib
"user32"
Alias
"SendMessageA"
(ByVal
hwnd
As
Long,
ByVal
wMsg
As
Long,
ByVal
wParam
As
Long,
lParam
As
Any)
As
Long
Private
Const
WM_CLOSE
=
&H10
Private
Sub
Timer1_Timer()
rs
=
FindWindow(0&,
"Windows
任务管理器")'这里填写要禁止启动的进程名称
If
rs
<>
0
Then
SendMessage
rs,
WM_CLOSE,
0,
0
End
If
End
Sub
在窗体中建立一个文本框text1,multiline属性为true,scrollBars属性为2-vertical
复制进如下代码:
Private
Sub
Form_Load()
Dim
a&,
b$
For
a
=
100
To
200
If
a
Mod
3
=
0
Then
b
=
b
&
Str(a)
Next
a
Text1Text
=
b
End
Sub
---------我是华丽丽的分割线--------
dim
a(1
to
10)
as
long
dim
Temp()
as
long
‘保存能被3整除的数
dim
s
as
string
dim
n
as
integer
for
i=1
to
10
a(i)=inputbox("Please
input
data!")
next
i
for
i=1
to
10
if
(a(i)
mod
2)
then
n=n+1
s=s
&
cstr(a(i))
&
","
end
if
redim
temp(n)
as
long
dim
v
v=split(s,",")
for
i=0
to
ubound(v)
temp(i)=v(i)
next
i
Dim sec, min, h
Private Sub Command1_Click()
Timer1Enabled = True
h = Text1Text
min = Text2Text
sec = Text3Text
Timer2Enabled = False
End Sub
Private Sub Command2_Click()
End
End Sub
Private Sub Form_Load()
Form1BackColor = &HFFFF00
Timer1Enabled = False
Timer1Interval = 1000
Timer2Enabled = True
Timer2Interval = 1000
Text1Text = 2
Text2Text = "00"
Text3Text = "00"
Command2Caption = "退出"
Command1Caption = "开始倒计时"
End Sub
Private Sub Timer1_Timer()
If sec > 0 Then
sec = sec - 1
Else:
If (min > 0 Or h > 0) Then
sec = 59
End If
If min > 0 Then
min = min - 1
Else:
If h > 0 Then
min = 59
End If
If h > 0 Then
h = h - 1
Else: Timer1Enabled = False
CreateObject("SAPISpVoice")Speak "GAME OVER!"
Form1BackColor = &HFF
End If
End If
End If
Text1Text = h
Text2Text = min
Text3Text = sec
Label6Caption = Now
End Sub
Private Sub Timer2_Timer()
Label6Caption = Now
End Sub
Private Sub Command1_Click() '窗体上放一个按钮,点击,就可以在窗体上打印结果
Dim SuShu(3) As Integer, i1 As Integer, i2 As Integer, i3 As Integer, i4 As Integer, i5 As Integer, c1 As Long, c2 As Long, Ji1 As Long, Ji2 As Long, Ji3 As Long
MeAutoRedraw = True
SuShu(0) = 2: SuShu(1) = 3: SuShu(1) = 5: SuShu(3) = 7
For i1 = 0 To 3
For i2 = 0 To 3
For i3 = 0 To 3
c1 = SuShu(i1) 100 + SuShu(i2) 10 + SuShu(i3)
For i4 = 0 To 3
For i5 = 0 To 3
c2 = SuShu(i4) 10 + SuShu(i5)
Ji1 = c1 SuShu(i5)
Ji2 = c1 SuShu(i4)
Ji3 = Ji1 + Ji2 10
If Ji1 > 1000 And Ji2 > 1000 And Ji3 > 10000 Then
If IsQuanSuShu(Ji1) And IsQuanSuShu(Ji2) And IsQuanSuShu(Ji3) Then '如果是,输出结果
Print " " & CStr(c1) & vbNewLine & " X " & CStr(c2) & vbNewLine & "--------"
Print " " & CStr(Ji1) & vbNewLine & " " & CStr(Ji2) & vbNewLine & "--------" & vbNewLine & " " & CStr(Ji3)
End If
End If
Next
Next
Next
Next
Next
End Sub
Private Function IsQuanSuShu(ByVal n As Long) As Boolean '每一位是否全部是2,3,5,7
Dim k As Integer
Do While n > 0
k = n Mod 10
If k <> 2 And k <> 3 And k <> 5 And k <> 7 Then Exit Function
n = n \ 10
Loop
IsQuanSuShu = True
End Function
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