vb的rs触发器函数代码?
vb的rs的触发器函数代码如下:
RS触发器:Q=Sd+RdQ
特征方程,实际上就是为研究相应的数学对象而引入的一些等式,它因数学对象不同而不同,包括数列特征方程,矩阵特征方程,微分方程特征方程,积分方程特征方程等。
例如:
1、D触发器: Qn+1=D
2、T触发器:Q=TQ+TQ
3、JK触发器:Q=JQ+KQ
工作原理:
S‘=0,R’=1:无论触发器原来处于何种状态,由于S=0,则Q=1,Q非=0,触发器处于“1”态(或称置位状态)。触发器的状态是由S所决定的,称S为直接置位端。
S‘=1,R’=0:无论触发器原来处于何种状态,由于R=0,则Q=0,Q非=1,触发器处于“0”态(或称复位状态)。触发器的状态是由R所决定的,称R为直接复位端。
延伸阅读
vb计算数组中正数之和的代码?
代码如下:
PrivateFunctionQsum(ByRefa()AsInteger)AsDouble
DimnAsDouble
n=0
Fori=LBound(a)ToUBound(a)
if a(i)>0
n=n+a(i)
Nexti
Qsum=n
EndFunction
百钱百鸡VB编程,代码?
假设你的百鸡百钱是经典的算法,公鸡5钱,母鸡3钱,3小鸡一钱,下面的代码在VB里面调试通过。
Dim a As Integer, b As Integer, c As Integer
For a = 1 To 20
For b = 1 To 33
c = 100 – a – b
If (a + b + c = 100) And (a * 5 + b * 3 + c / 3 = 100) Then
Print a, b, c
End If
Next b
Next a
VB程序设计,用户登陆界面代码?
Dim AAA As StringPrivate Sub Command1_Click()Dim aa, bbaa = “admin” ‘账号bb = “admin888” ‘密码AAA = Val(AAA) + 1 ‘记录登录次数If Val(AAA) >= 3 Then ‘等于大于3次,提示并退出程序MsgBox “你已经错误输入三次!”EndEnd IfIf Text1 = aa And Text2 = bb Then ‘如果输入正确MsgBox “登录成功!”Me.Hideform2.Show ‘登录成功后,转到form2界面Else ‘如果输入错误MsgBox “账号或密码输入错误!”End IfEnd SubPrivate Sub Form_Load()Label1 = “欢迎光临!”End Sub
求VB编程代码:题目:判断一个数是否是素数?
#include<stdio.h>int sushu(){int i,leap=1;int m;scanf(“%d”,&m);for(i=2;i<m;i++){if(m%i==0)/*判断条件为真时,即表示m存在1和自身以外的其他因数。判断条件是为假时,即不会执行此if下的语句,leap值不变,仍为1,程序继续向下执行*/{leap=0;break;}}if(leap==1){return leap;}}int main(){switch(sushu()){case 1:printf(“Prime!n”);break;case 0:printf(“Not Prime!n”);break;}return 0;}
扩展资料:
在主函数中输入一个大于1的正整数,通过调用这个函数,输出该数是否为素数的信息。如果该数为素数,输出信息为:Prime!若该数不为素数,则输出信息为:Not Prime!输入输出在主函数中进行输入描述输入一个大于1的正整数。输出描述对输入的正整数进行素数的判定:如果该数为素数,输出信息为:Prime!若该数不为素数,则输出信息为:Not Prime!输出信息单独占一行。输入样例18输出样例Not Prime!
VB跳转代码?
代码示例:
TextWindow.ForegroundColor=”blue”
TextWindow.WriteLine(“沸羊羊制作”)
TextWindow.WriteLine(” “)
label1:
TextWindow.Write(“请输入数字”)
num1=TextWindow.Read()
TextWindow.Write(“请输入要计算的符号”)
字母=TextWindow.Read()
TextWindow.Write(“请输入数字”)
num2=TextWindow.Read()
If(字母=”*”)Then
num3=num1*num2
EndIf
If(字母=”/”)Then
num3=num1/num2
EndIf
If(字母=”+”)Then
num3=num1+num2
EndIf
If(字母=”-“)Then
num3=num1-num2
EndIf
If(字母=””)Then
num3=”请重新输入”
EndIf
TextWindow.WriteLine(num3)
GoTo label1
当然也可以用while语句,判断条件是True就可以无限循环了
VB显示系统时间的代码是什么?
VB显示系统时间的代码如下:
text1.text=”今天是” & Format$(Now,”Long Date”)
text2.text=Format$(Now,”dddd”)
text3.text=Format$(Now,”Long Time”)
Visual Basic是一种由 Microsoft 公司开发的结构化的、模块化的、面向对象的、包含协助开发环境的事件驱动为机制的可视化程序设计语言。
vb代码如何导入excel?
可以使用 Visual Basic for Applications (VBA) 来导入 Excel 中的数据。可以通过以下步骤来实现:
打开 Excel 并启动 VBA 编辑器(按 ALT + F11)。
在 VBA 编辑器中,新建一个模块。
复制下面的代码并粘贴到模块
Sub ImportData()
Dim wb As Workbook
Set wb = Workbooks.Open(“C:pathtoyourfile.xlsx”)
‘ Import the data into the active sheet
wb.Sheets(1).Range(“A1”).CurrentRegion.Copy Destination:=ActiveSheet.Range(“A1”)
wb.Close False
End Sub
替换 “C:pathtoyourfile.xlsx” 为你的文件路径。
在 VBA 编辑器中运行该代码(按 F5 或选择“运行”)。
该代码会导入 Excel 中的数据到当前工作簿的第一个工作表中。
求一个简单的vb小游戏制作代码?
贪吃蛇Private Sub Form_KeyDown(KeyCode As Integer, Shift As Integer)Dim C As LongIf KeyCode = 27 Then EndIf KeyCode = 32 ThenIf Timer1.Enabled = True ThenTimer1.Enabled = FalseLabel1.Visible = TrueElseTimer1.Enabled = TrueLabel1.Visible = FalseEnd IfEnd IfC = UBound(She)If GFangXiang = True Then Exit SubSelect Case KeyCodeCase 37If She(C).F = 2 Then Exit SubShe(C).F = 0GFangXiang = TrueCase 38If She(C).F = 3 Then Exit SubShe(C).F = 1GFangXiang = TrueCase 39If She(C).F = 0 Then Exit SubShe(C).F = 2GFangXiang = TrueCase 40If She(C).F = 1 Then Exit SubShe(C).F = 3GFangXiang = TrueEnd SelectEnd SubPrivate Sub Form_Load()Me.AutoRedraw = TrueMe.BackColor = &HC000&Me.FillColor = 255Me.FillStyle = 0Me.ScaleWidth = 24Me.ScaleHeight = 24Me.WindowState = 2Set Timer1 = Controls.Add(“VB.Timer”, “Timer1”)Set Label1 = Controls.Add(“VB.Label”, “Label1”)Label1.AutoSize = TrueLabel1.BackStyle = 0Label1 = “暂停”Label1.ForeColor = RGB(255, 255, 0)Label1.FontSize = 50ChuShiHuaEnd SubPrivate Sub Form_Resize()On Error GoTo 1:With MeIf .WindowState <> 1 Then.Cls.ScaleMode = 3HWB = .ScaleHeight / .ScaleWidth.ScaleWidth = 24.ScaleHeight = 24Label1.Move (Me.ScaleWidth – Label1.Width) / 2, (Me.ScaleHeight – Label1.Height) / 2HuaTuMe.Line (X, Y)-(X + 1, Y + 1), RGB(255, 255, 0), BFEnd IfEnd With1:End SubPrivate Sub Timer1_Timer()Dim C As Long, I As LongOn Error GoTo 2:QingChuC = UBound(She)Select Case She(C).FCase 0If ZhuangTai(She(C).X – 1, She(C).Y) = 2 ThenC = C + 1ReDim Preserve She(C)She(C).F = She(C – 1).FShe(C).X = She(C – 1).X – 1She(C).Y = She(C – 1).YChanShengShiWuGoTo 1:ElseIf ZhuangTai(She(C).X – 1, She(C).Y) = 1 ThenGoTo 2:End IfCase 1If ZhuangTai(She(C).X, She(C).Y – 1) = 2 ThenC = C + 1ReDim Preserve She(C)She(C).F = She(C – 1).FShe(C).X = She(C – 1).XShe(C).Y = She(C – 1).Y – 1ChanShengShiWuGoTo 1:ElseIf ZhuangTai(She(C).X, She(C).Y – 1) = 1 ThenGoTo 2:End IfCase 2If ZhuangTai(She(C).X + 1, She(C).Y) = 2 ThenC = C + 1ReDim Preserve She(C)She(C).F = She(C – 1).FShe(C).X = She(C – 1).X + 1She(C).Y = She(C – 1).YChanShengShiWuGoTo 1:ElseIf ZhuangTai(She(C).X + 1, She(C).Y) = 1 ThenGoTo 2:End IfCase 3If ZhuangTai(She(C).X, She(C).Y + 1) = 2 ThenC = C + 1ReDim Preserve She(C)She(C).F = She(C – 1).FShe(C).X = She(C – 1).XShe(C).Y = She(C – 1).Y + 1ChanShengShiWuGoTo 1:ElseIf ZhuangTai(She(C).X, She(C).Y + 1) = 1 ThenGoTo 2:End IfEnd SelectZhuangTai(She(0).X, She(0).Y) = 0For I = 0 To CSelect Case She(I).FCase 0She(I).X = She(I).X – 1Case 1She(I).Y = She(I).Y – 1Case 2She(I).X = She(I).X + 1Case 3She(I).Y = She(I).Y + 1End SelectNextTiaoZheng1:GFangXiang = FalseZhuangTai(She(C).X, She(C).Y) = 1HuaTuExit Sub2:If MsgBox(“游戏结束,点“是”重新开始游戏,点“否””, vbYesNo, “贪吃蛇”) = vbYes ThenChuShiHuaElseEndEnd IfEnd SubPrivate Sub ChuShiHua()Me.ClsTimer1.Enabled = TrueTimer1.Interval = 200Erase ZhuangTaiReDim She(2)She(0).F = 2She(0).X = 9She(0).Y = 11ZhuangTai(9, 11) = 1She(1).F = 2She(1).X = 10She(1).Y = 11ZhuangTai(10, 11) = 1She(2).F = 2She(2).X = 11She(2).Y = 11ZhuangTai(11, 11) = 1HuaTuChanShengShiWuEnd SubPrivate Sub QingChu()Dim I As LongFor I = 0 To UBound(She)Me.Line (She(I).X, She(I).Y)-(She(I).X + 1, She(I).Y + 1), Me.BackColor, BFNextEnd SubPrivate Sub HuaTu()Dim I As LongFor I = 0 To UBound(She)Me.Circle (She(I).X + 0.5, She(I).Y + 0.5), 0.49, RGB(255, 255, 0), , , HWBNextEnd SubPrivate Sub TiaoZheng()Dim I As LongFor I = 0 To UBound(She) – 1She(I).F = She(I + 1).FNextEnd SubPrivate Sub ChanShengShiWu()Randomize Timer1:X = Int(Rnd * 24)Y = Int(Rnd * 24)If ZhuangTai(X, Y) > 0 Then GoTo 1:ZhuangTai(X, Y) = 2Me.Line (X, Y)-(X + 1, Y + 1), RGB(255, 255, 0), BFEnd Sub