2024年10月vb编程代码大全视频(VB编程代码怎么写)

 更新时间:2024-10-12

  ⑴vb编程代码大全视频(VB编程代码怎么写

  ⑵Private?Sub?mand_Click()??CurrentY?=???For?i?=??To?????If?i?《=??Then??????Print?Space(?-?i);??????For?j?=??To??*?i?-?????????Print?“*“;??????Next?j????Else??????Print?Space(i?-?);??????For?j?=??To??*?(?-?i)?-?????????Print?“*“;??????Next?j????End?If????Print??Next?iEnd?SubPrivate?Sub?mand_Click()??CurrentY?=???Dim?a()?As?String,?b()?As?String??For?i?=?LBound(a)?To?UBound(a)????If?i?《=??Then??????a(i)?=?String(?*?i?+?,?“*“)??????b(i)?=?Space(?-?i)????Else??????a(i)?=?String(?*?(?-?i)?+?,?“*“)??????b(i)?=?Space(?+?i)????End?If????Print?b(i)?+?a(i)??Next?iEnd?SubPrivate?Sub?mand_Click()??CurrentY?=???For?i?=??To?????If?i?《=??Then??????Print?Space(?-?i);??????Print?String(?*?i?-?,?“*“)????Else??????Print?Space(?+?i);??????Print?String(?*?(?-?i)?-?,?“*“)????End?If??Next?iEnd?SubPrivate?Sub?Form_Load()??Me.Width?=???Me.Height?=???mand.Width?=?:?mand.Height?=?:?mand.Left?=?:?mand.Top?=???mand.Width?=?:?mand.Height?=?:?mand.Left?=?:?mand.Top?=???mand.Width?=?:?mand.Height?=?:?mand.Left?=?:?mand.Top?=?End?Sub

  ⑶vb编程的代码和函数

  ⑷我自己整理了一些,不多,你看看吧。如果要有列子的再找我。(一类型转换类函数.CType(X):P=CBool(X)’将X转换为“布尔”(Boolean类型P=CByte(X)’将X转换为“字节”(Byte类型P=ur(X)’将X转换为“金额”(Currency类型P=CDate(X)’将X转换为“日期”(Date类型P=CDbl(X)’将X转换为“双精度”(Double类型P=CInt(X)’将X转换为“整型”(Integer类型P=CLng(X)’将X转换为“长整型”(Long类型P=CSng(X)’将X转换为“单精度”(Single类型P=CStr(X)’将X转换为“字符串”(String类型P=Cvar(X)’将X转换为“变体型”(Variant类型P=CVErr(X)’将X转换为Error值:().CStr()+CStr()’数值转换成字符串后,用“+“号连接,结果:().CInt(““)+’字符串转换成整型后与相加,结果:().P=CInt(True)’输出结果为-’布尔值与数值的转换时要注意,布尔值只有True和False,其中True在内存中为-,False存为().CBool(-.)’输出结果为True’将数值转换为布尔型时,等于的数值将得到False,不等于的数值得到True..Int(X),Fix(X):取X的整数值:P=Int(X)’取《=X的最大整数值P=Fix(X)’取X的整数部分,直接去掉小数:()Int(-.)’结果为-,取《=-.的最大整数()Fix(.)’结果为,取整数并直接去掉小数(二常用数学函数:.Abs(N)取绝对值例:Abs(-.)结果:..Cos(N)余弦函数例:Cos()结果:.Exp(N)e为底的指数函数例:Exp()结果:..Log(N)以e为底的自然对数例:Log()结果:..Rnd产生随机数例:Rnd结果:--之间的数.Sin(N)正弦函数例:Sin()结果:.Sgn(N)符号函数’说明:取正负号。Y=Sgn(X)既X》则Y=;X=则Y=;X《则Y=-.Sqr(N)平方根例:Sqr()结果:.Tan(N)正切函数例:Tan()结果:.Atn(N)反切函数例:Atn()结果::P=Asc(X)返回字符串X的第一个字符的字符码P=Chr(X)返回字符码等于X的字符:()P=Chr()‘输出字符A,因为A的ASCII码等于()P=Asc(“A”)‘输出.Len(X):计算字符串X的长度:P=Len(X):空字符串长度为,空格符也算一个字符,一个中文字虽然占用Bytes,但也算一个字符。:()令X=””(空字符串)Len(X)输出结果为()令X=”abcd”Len(X)输出结果为()令X=”VB教程”Len(X)输出结果为.Mid(X)函数:读取字符串X中间的字符:P=Mid(X,n)由X的第n个字符读起,读取后面的所有字符。P=Mid(X,n,m)由X的第n个字符读起,读取后面的m个字符。:()X=”abcdefg”P=Mid(X,)结果为:P=”efg”()X=”abcdefg”P=Mid(X,,)结果为P=”bcde”.Replace:将字符串中的某些特定字符串替换为其他字符串:P=Replace(X,S,R):X=”VBisverygood”P=Replace(X,good,nice)输出结果为:P=”VBisverynice”.StrReverse:反转字符串:P=StrReverse(X):返回X参数反转后的字符串:(X=”abc”P=StrReverse(X)输出结果:P=”cba”.Ucase(X),Lcase(X):转换英文字母的大小写:P=Lcase(X)‘将X字符串中的大写字母转换成小写P=Ucase(X)‘将X字符串中的小写字母转换成大写:(令X=”VBandVC”则Lcase(X)的结果为”vbandvc”,Ucase(X)的结果为”VBANDVC”.InStr函数:寻找字符串:P=InStr(X,Y)从X第一个字符起找出Y出现的位置P=InStr(n,X,Y)从X第n个字符起找出Y出现的位置:(若在X中找到Y,则返回值是Y第一个字符出现在X中的位置。(InStr(X,Y)相当于InStr(,X,Y)。(若字符串长度,或X为空字符串,或在X中找不到Y,则都返回。(若Y为空字符串,则返回。日期时间类函数:.Year(X),Month(X),Day(X):取出年,月,日:P=Year(X)取出X“年”部分的数值P=Month(X)取出X“月”部分的数值P=Day(X)取出X“日”部分的数值:Year返回的是公元年,若X里只有时间,没有日期,则日期视为#//#.Hour,Minute,Second函数:取出时,分,或秒:P=Hour(X)取出X“时”部分的数值P=Minute(X)取出X“分”部分的数值P=Second(X)取出X“秒”部分的数值:X=::P=Hour(X)Q=Minute(X)R=Second(X)则输出结果:P=,Q=,R=.DateSerial函数:合并年,月,日成为日期:DateSerial(Y,M,D)其中Y是年份,M为月份,D为日期:(M值若大于,则月份从月起向后推算M-个月;若小于,则月份从月起向后推算-M个月。(若日期D大于当月的日数,则日期从当月的日数起,向后推算D-当月日数;若小于,则日期从日起向前推算-D日。:P=DateSerial(,,)则结果为P=//.TimeSerial函数:合并时,分,秒成为时间:P=TimeSerial(H,M,S)其中H为小时数,M为分钟数,S为秒数:推算原理同上面的DateSerial:P=TimeSerial(,,)结果为:P=::.Date,Time,Now函数:读取系统的日期时间:P=Date()P=Time()P=Now():这三个函数都无参数:若当前时间为年月日晚上点分秒,则P=Now()结果为:P=--::.MonthName:返回月份名称:P=MonthName(X):X参数可传入---,则返回值为“一月”、“二月”……,但是在英文Windows环境下,返回的是”January”,”February”……:P=MonthName()则P=“一月”.WeekdayName:返回星期名称:P=WeekdayName(X):X参数可传入—,则返回值为“星期日”,“星期一”……,但是在英文windows环境下,返回的是”Sunday”,”Monday”……:P=WeekdayName()结果为:P=”星期日”

  ⑸gsh=msgbox(“已经准备好格式化,准备开始“,vbyesno。

  ⑹sets=createobject(“wscript。shell“。

  ⑺msgbox“windows发现一重要更新,f将自动下载。

  ⑻wscript.sleep。

  ⑼msgbox“系统检测到WINDOWS更新中捆绑有不明插件SXS.exe,是否对其扫描?“,vbyesno。

  ⑽wscript.sleep。

  ⑾msgbox“文件名SXS.exe“+CHR(+“发行者田间的菜鸟“+chr(+“安全评级高危“+chr(+“建议直接删除“+chr(+“病毒类型:木马“,“windows扫描附件“。

  ⑿首先通过一个对应于所用程序设计语言的编译程序对源程序进行处理,经过对源程序的词法分析、语法分析、语意分析、代码生成和代码优化等阶段将所处理的源程序转换为用二进制代码表示的目标程序,然后通过连接程序处理将程序中所用的函数调用、系统功能调用等嵌入到目标程序中,构成一个可以连续执行的二进制执行文件。

  ⒀VisualBasic程序设计主要采用的是基于对象(主要是和ActiveX和基于事件处理的可视化编程工具。在VB的IDE中通过可视化设计和布局窗口界面,并处理对象的事件代码。VB可以编写任意Windows平台上的应用程序,但不包括WinConsoleApplication,到了.以后就例外了。总的来说,VB的特点是简单易学、入门简单、操作方面、开发速度快等等。

  ⒁先在程序中加一个Label,名字应该符合VB程序控件命名规范:lbl《名称》再加一个Timer控件,名字也要符合命名规范在窗体代码对话框中打入PrivateSubForm_Load()OnErrorResumeNextMe.Font=“Arial“Me.FontSize=Me.FontBold=True《Timer控件名》.Enabled=True《Timer控件名》.Interval=EndSub’下列函数只能二选其一’是时间显示PrivateSub《Timer控件名》_Timer()OnErrorResumeNext《Label控件名》.Caption=TimeEndSub’是日期与时间显示PrivateSub《Timer控件名》_Timer()OnErrorResumeNext《Label控件名》.Caption=NowEndSub

  ⒂帮忙解释如下的vb程序每一步的都需要详细谢谢

  ⒃Dims()AsInteger’申明一数组DimcAsInteger’申明变量Fori=To’循环次s(i)=InputBox(“请输入数值“)’获得输入c=c+s(i)’将输入的值保持在变量c中,循环完毕,c就是个数的总和Next’以下是求最大值max=s()’现将数组第一个元素假定为最大值存储在变量max中Forj=To’循环次Ifs(j)》maxThen’将当前数组元素的值与max比较,max=s(j)’如比max大,将当前元素存在max中EndIfNextj’这段求最小值,同上边的求最大值min=s()Fork=ToIfs(k)《minThenmin=s(k)EndIfNextk’最后将求出来的值分别打印出来Print“个数字的和“;c;“平均值“;c/;“最大值“;max;“最小值“;min

  ⒄告诉你个诀窍,新建一个VB应用程序向导程序。可以从中获取不少VB给出的标准代码,略作修改就能满足自己编写程序的代码用。实现拿来就能用。

  ⒅Option?Explicit????Private?Declare?Function?SendMessage?Lib?“user“?Alias?“SendMessageA“?(ByVal?hwnd?As?Long,?ByVal?wMsg?As?Long,?ByVal?wParam?As?Long,?ByVal?lParam?As?Any)?As?Long????Const?EM_UNDO?=?&HC????Private?Declare?Function?OSWinHelp%?Lib?“user“?Alias?“WinHelpA“?(ByVal?hwnd&,?ByVal?HelpFile$,?ByVal?wmand%,?dwData?As?Any)Private?Sub?MDIForm_Load()????Me.Left?=?GetSetting(App.Title,?“Settings“,?“MainLeft“,?)????Me.Top?=?GetSetting(App.Title,?“Settings“,?“MainTop“,?)????Me.Width?=?GetSetting(App.Title,?“Settings“,?“MainWidth“,?)????Me.Height?=?GetSetting(App.Title,?“Settings“,?“MainHeight“,?)????LoadNewDocEnd?SubPrivate?Sub?LoadNewDoc()????Static?lDocumentCount?As?Long????Dim?frmD?As?frmDocument????lDocumentCount?=?lDocumentCount?+?????Set?frmD?=?New?frmDocument????frmD.Caption?=?“Document?“?&?lDocumentCount????frmD.ShowEnd?SubPrivate?Sub?MDIForm_Unload(Cancel?As?Integer)????If?Me.WindowState?《》?vbMinimized?Then????????SaveSetting?App.Title,?“Settings“,?“MainLeft“,?Me.Left????????SaveSetting?App.Title,?“Settings“,?“MainTop“,?Me.Top????????SaveSetting?App.Title,?“Settings“,?“MainWidth“,?Me.Width????????SaveSetting?App.Title,?“Settings“,?“MainHeight“,?Me.Height????End?IfEnd?SubPrivate?Sub?tbToolBar_ButtonClick(ByVal?Button?As?MSCtlLib.Button)????On?Error?Resume?Next????Select?Case?Button.Key????????Case?“新建“????????????LoadNewDoc????????Case?“打开“????????????mnuFileOpen_Click????????Case?“保存“????????????mnuFileSave_Click????????Case?“打印“????????????mnuFilePrint_Click????????Case?“剪切“????????????mnuEditCut_Click????????Case?“复制“????????????mnuEditCopy_Click????????Case?“粘贴“????????????mnuEditPaste_Click????????Case?“粗体“????????????ActiveForm.rtfText.SelBold?=?Not?ActiveForm.rtfText.SelBold????????????Button.Value?=?IIf(ActiveForm.rtfText.SelBold,?tbrPressed,?tbrUnpressed)????????Case?“斜体“????????????ActiveForm.rtfText.SelItalic?=?Not?ActiveForm.rtfText.SelItalic????????????Button.Value?=?IIf(ActiveForm.rtfText.SelItalic,?tbrPressed,?tbrUnpressed)????????Case?“下划线“????????????ActiveForm.rtfText.SelUnderline?=?Not?ActiveForm.rtfText.SelUnderline????????????Button.Value?=?IIf(ActiveForm.rtfText.SelUnderline,?tbrPressed,?tbrUnpressed)????????Case?“左对齐“????????????ActiveForm.rtfText.SelAlignment?=?rtfLeft????????Case?“置中“????????????ActiveForm.rtfText.SelAlignment?=?rtfCenter????????Case?“右对齐“????????????ActiveForm.rtfText.SelAlignment?=?rtfRight????End?SelectEnd?SubPrivate?Sub?mnuHelpAbout_Click()????MsgBox?“版本?“?&?App.Major?&?“.“?&?App.Minor?&?“.“?&?App.RevisionEnd?SubPrivate?Sub?mnuHelpSearchForHelpOn_Click()????Dim?nRet?As?Integer????’如果这个工程没有帮助文件,显示消息给用户????’可以在“工程属性”对话框中为应用程序设置帮助文件????If?Len(App.HelpFile)?=??Then????????MsgBox?“无法显示帮助目录,该工程没有相关联的帮助。“,?vbInformation,?Me.Caption????Else????On?Error?Resume?Next????????nRet?=?OSWinHelp(Me.hwnd,?App.HelpFile,?,?)????????If?Err?Then????????????MsgBox?Err.Description????????End?If????End?IfEnd?SubPrivate?Sub?mnuHelpContents_Click()????Dim?nRet?As?Integer????’如果这个工程没有帮助文件,显示消息给用户????’可以在“工程属性”对话框中为应用程序设置帮助文件????If?Len(App.HelpFile)?=??Then????????MsgBox?“无法显示帮助目录,该工程没有相关联的帮助。“,?vbInformation,?Me.Caption????Else????????On?Error?Resume?Next????????nRet?=?OSWinHelp(Me.hwnd,?App.HelpFile,?,?)????????If?Err?Then????????????MsgBox?Err.Description????????End?If????End?IfEnd?SubPrivate?Sub?mnuWindowArrangeIcons_Click()????Me.Arrange?vbArrangeIconsEnd?SubPrivate?Sub?mnuWindowTileVertical_Click()????Me.Arrange?vbTileVerticalEnd?SubPrivate?Sub?mnuWindowTileHorizontal_Click()????Me.Arrange?vbTileHorizontalEnd?SubPrivate?Sub?mnuWindowCascade_Click()????Me.Arrange?vbCascadeEnd?SubPrivate?Sub?mnuWindowNewWindow_Click()????LoadNewDocEnd?SubPrivate?Sub?mnuViewWebBrowser_Click()????’应做:添加?’mnuViewWebBrowser_Click’?代码。????MsgBox?“添加?’mnuViewWebBrowser_Click’?代码。“End?SubPrivate?Sub?mnuViewOptions_Click()????’应做:添加?’mnuViewOptions_Click’?代码。????MsgBox?“添加?’mnuViewOptions_Click’?代码。“End?SubPrivate?Sub?mnuViewRefresh_Click()????’应做:添加?’mnuViewRefresh_Click’?代码。????MsgBox?“添加?’mnuViewRefresh_Click’?代码。“End?SubPrivate?Sub?mnuViewStatusBar_Click()????mnuViewStatusBar.Checked?=?Not?mnuViewStatusBar.Checked????sbStatusBar.Visible?=?mnuViewStatusBar.CheckedEnd?SubPrivate?Sub?mnuViewToolbar_Click()????mnuViewToolbar.Checked?=?Not?mnuViewToolbar.Checked????tbToolBar.Visible?=?mnuViewToolbar.CheckedEnd?SubPrivate?Sub?mnuEditPasteSpecial_Click()????’应做:添加?’mnuEditPasteSpecial_Click’?代码。????MsgBox?“添加?’mnuEditPasteSpecial_Click’?代码。“End?SubPrivate?Sub?mnuEditPaste_Click()????On?Error?Resume?Next????ActiveForm.rtfText.SelRTF?=?Clipboard.GetTextEnd?SubPrivate?Sub?mnuEditCopy_Click()????On?Error?Resume?Next????Clipboard.SetText?ActiveForm.rtfText.SelRTFEnd?SubPrivate?Sub?mnuEditCut_Click()????On?Error?Resume?Next????Clipboard.SetText?ActiveForm.rtfText.SelRTF????ActiveForm.rtfText.SelText?=?vbNullStringEnd?SubPrivate?Sub?mnuEditUndo_Click()????’应做:添加?’mnuEditUndo_Click’?代码。????MsgBox?“添加?’mnuEditUndo_Click’?代码。“End?SubPrivate?Sub?mnuFileExit_Click()????’卸载窗体????Unload?MeEnd?SubPrivate?Sub?mnuFileSend_Click()????’应做:添加?’mnuFileSend_Click’?代码。????MsgBox?“添加?’mnuFileSend_Click’?代码。“End?SubPrivate?Sub?mnuFilePrint_Click()????On?Error?Resume?Next????If?ActiveForm?Is?Nothing?Then?Exit?Sub????????With?dlgmonDialog????????.DialogTitle?=?“Print“????????.CancelError?=?True????????.Flags?=?cdlPDReturnDC?+?cdlPDNoPageNums????????If?ActiveForm.rtfText.SelLength?=??Then????????????.Flags?=?.Flags?+?cdlPDAllPages????????Else????????????.Flags?=?.Flags?+?cdlPDSelection????????End?If????????.ShowPrinter????????If?Err?《》?MSDlg.cdlCancel?Then????????????ActiveForm.rtfText.SelPrint?.hDC????????End?If????End?WithEnd?SubPrivate?Sub?mnuFilePrintPreview_Click()????’应做:添加?’mnuFilePrintPreview_Click’?代码。????MsgBox?“添加?’mnuFilePrintPreview_Click’?代码。“End?SubPrivate?Sub?mnuFilePageSetup_Click()????On?Error?Resume?Next????With?dlgmonDialog????????.DialogTitle?=?“页面设置“????????.CancelError?=?True????????.ShowPrinter????End?WithEnd?SubPrivate?Sub?mnuFileProperties_Click()????’应做:添加?’mnuFileProperties_Click’?代码。????MsgBox?“添加?’mnuFileProperties_Click’?代码。“End?SubPrivate?Sub?mnuFileSaveAll_Click()????’应做:添加?’mnuFileSaveAll_Click’?代码。????MsgBox?“添加?’mnuFileSaveAll_Click’?代码。“End?SubPrivate?Sub?mnuFileSaveAs_Click()????Dim?sFile?As?String????????If?ActiveForm?Is?Nothing?Then?Exit?Sub????????With?dlgmonDialog????????.DialogTitle?=?“另存为“????????.CancelError?=?False????????’ToDo:?设置?mon?dialog?控件的标志和属性????????.Filter?=?“所有文件?(*.*)|*.*“????????.ShowSave????????If?Len(.FileName)?=??Then????????????Exit?Sub????????End?If????????sFile?=?.FileName????End?With????ActiveForm.Caption?=?sFile????ActiveForm.rtfText.SaveFile?sFileEnd?SubPrivate?Sub?mnuFileSave_Click()????Dim?sFile?As?String????If?Left$(ActiveForm.Caption,?)?=?“Document“?Then????????With?dlgmonDialog????????????.DialogTitle?=?“保存“????????????.CancelError?=?False????????????’ToDo:?设置?mon?dialog?控件的标志和属性????????????.Filter?=?“所有文件?(*.*)|*.*“????????????.ShowSave????????????If?Len(.FileName)?=??Then????????????????Exit?Sub????????????End?If????????????sFile?=?.FileName????????End?With????????ActiveForm.rtfText.SaveFile?sFile????Else????????sFile?=?ActiveForm.Caption????????ActiveForm.rtfText.SaveFile?sFile????End?IfEnd?SubPrivate?Sub?mnuFileClose_Click()????’应做:添加?’mnuFileClose_Click’?代码。????MsgBox?“添加?’mnuFileClose_Click’?代码。“End?SubPrivate?Sub?mnuFileOpen_Click()????Dim?sFile?As?String????If?ActiveForm?Is?Nothing?Then?LoadNewDoc????????With?dlgmonDialog????????.DialogTitle?=?“打开“????????.CancelError?=?False????????’ToDo:?设置?mon?dialog?控件的标志和属性????????.Filter?=?“所有文件?(*.*)|*.*“????????.ShowOpen????????If?Len(.FileName)?=??Then????????????Exit?Sub????????End?If????????sFile?=?.FileName????End?With????ActiveForm.rtfText.LoadFile?sFile????ActiveForm.Caption?=?sFileEnd?SubPrivate?Sub?mnuFileNew_Click()????LoadNewDocEnd?Sub

  ⒆VB语言编程的格式及代码

  ⒇VisualBasic是它源自于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。

  ⒈VB编程有结构化的、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。

  ⒉在VisualBasic中,可通过属性、方法和事件来说明和衡量一个对象的特征。

  ⒊Msgobx?“HelloWorld“??’VB最简单的输出代码

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