Microsoft Visual Basic 5.0
Microsoft Visual Basic 5.0 – yoi iiuiay nenoaia i?ia?aiie?iaaiey,
iicaieythuay auno?i e yooaeoeaii nicaeaaaoue i?eeiaeaiey aeey Microsoft
Windows’95 e Microsoft Windows’NT
?iaeaeaiea e ?acaeoea Basic.
I?eaeiaeueiue ycue i?ia?aiie?iaaiey Basic aue nicaeai Aeaeiiii Eaiaie e
Oiianii Eo?oeai a 1963 a a Aea?oio?neii eieeaaeaea. Ii auno?i caaiaaae
iiioey?iinoue a ea/anoaa ycuea aeey iao/aiey i?ia?aiie?iaaieth a
oieaa?neoaoao e oeieao e aue aaeaioe?iaai aeey eniieueciaaiey ia
ia?niiaeueiuo eiiiuethoa?ao iniiaaoaeai e aeaaie eiiiaiee Microsoft
Aeeeii Aaeonii a na?aaeeia 70-o aa. N oao ii? aeey IE iineaaeiaaoaeueii
auei auiouaii ianeieueei aa?nee Basic, aeeth/ay Microsoft Quick Basic e
MS-DOS Qbasic. Oioy i?ia?aiiiay iaiei/ea Visual Basic auiieiaia
iieiinoueth a?aoe/aneie, a nai ycue i?ia?aiie?iaaiey aanueia aeaeae io
ycuea, i?eiaiyaiiai aeey ?aiieo aa?nee eioa?i?aoaoi?ia Basic , i?inoioa
e yeaaaioiinoue Basic inoaeanue a aieueoie ia?a i?enouae e iiaui
aa?neyi. Oe?ieea aiciiaeiinoe Visual Basic e aai i?inoioa iineoaeeee
iniiaiie i?e/eiie aeey auai?a aai a ea/anoaa ycuea i?ia?aiie?iaaiey aeey
nicaeaiey oaeeo Windows- i?eeiaeaiee eae Excel.
Iiaua aiciiaeiinoe Visual Basic 5.0:
n Oi?aaeaiea iiiaeanoaaiiuie i?iaeoaie n iiiiuueth
Explorer (I?iaiaeiee i?iaeoia)
n Eniieueciaaiea iiauo n?aae Code Editor (?aaeaeoi? eiaeia), a oii /enea
Auto Quick Info (Auno?iai Aaoi eioi?iaoi?a)
n ?aaioa n ieiii Form Layout (Iaeaoa aeaiea) aeey iano?ieee aiaoiaai
aeaea i?ia?aiiu.
n Eciaiaiea ?acia?ia ieii e aeieoiaioia.
n Auai? e eniieueciaaiea ooieoeee oi?aaeaiey Active X.
n Eniieueciaaiea iiauo ioeaaei/iuo eino?oiaioia e oaoiee aeey
eni?aaeaiey ioeaie i?ia?aiie?iaaiey.
n Auno?ue caione i?iaeoa n iaeiie eee aieaa i?aaeii?aaeaeaiiie oi?iie.
n ?anoe?aiea aiciiaeiinoae Microsoft Word /a?ac aaoiiaoecaoeeth.
N?aaea i?ia?aiie?iaaiey Visual Basic niaea?aeeo ana iaiaoiaeeiua
eino?oiaiou aeey auno?iai e yooaeoeaiiai nicaeaiey iiuiuo i?ia?aii,
?aaioathueo a n?aaea Windows.
Eino?oiaiou, eiathueany a n?aaea i?ia?aiie?iaaiey Visual Basic,
iiiiaatho i?e eiino?oe?iaaiee Basic- i?ia?aii.
No?iea Iaith iaania/eaaao aeinooi e aieueoeinoao eiiaiae, oi?aaeythueo
n?aaeie i?ia?aiie?iaaiey. Iaith e eiiaiaeu ?aaioatho a niioaaonoaee ni
noaiaea?oiuie niaeaoaieyie, iaueie aeey anao i?eeiaeaiee Windows.
Iiae no?ieie iaith eiaaony iaiaeue eino?oiaioia – iaai? eiiiie,
yaeythueony y?eueaie aeey eiiaiae, n iiiiuueth eioi?uo inouanoaeyaony
?aaioa a n?aaea Visual Basic. A ieaeiae /anoe ye?aia ?aniieiaeaia
iaiaeue caaea/. A? iiaeii eniieueciaaoue aeey ia?aeeth/aiey iaaeaeo
eiiiiiaioaie Visual Basic eee aeey aeoeaaoeee ae?oaeo i?eeiaeaiee
Windows. Oaeaea eiaaony ieii eino?oiaioia (Toolbox), ieii niaea?aeaiey
i?iaeoa (Project Container) , ieii oi?iu(Form) , ieii i?iaeoa(Project),
ieii iaiin?aaenoaaiiiai auiieiaiey(Immediate), ieii naienoa(Properties)
e ieii iaeaoa oi?iu(Form layout).
Oaeeu i?iaeoia Visual Basic eiatho ?anoe?aiey .vbp, .wak, .vbg a
eiaie oaeea.
A n?aaea Visual Basic eiaaony 7 eino?oiaioia .
Oi?ia Visual Basic – yoi ieii a eioa?oaena iieaeueciaaoaey .
Eino?oiaiou e n?aaenoaa oi?aaeaiey ia iaiaee neoaeao aeey oiai, /oiau
aeiaaaeyoue iiaua yeaiaiou iieueciaaoaeueneiai eioa?oaena. Iaiaeue
eino?oiaioia niaea?aeeo oaeaea n?aaenoaa oi?aaeaiey aeey nicaeaiey
iauaeoia, auiieiythueo niaoeeaeueiua “ca ye?aiiua” iia?aoeee: oi?aaeaiea
eioi?iaoeeae a aaca aeaiiuo, eiio?ieue a?aiaiiuo eioa?aaeia e o.ae.
Ieii Properties (Naienoaa)
Ieii Properties (Naienoaa) iicaieyao eciaiyoue oa?aeoa?enoeee
(onoaiiaee) yeaiaioia iieueciaaoaeueneiai eioa?oaena a oi?ia. Ieii
naienoa niaea?aeeo nienie anao iauaeoia, eniieuecothueony a aeaiiii
iieueciaaoaeueneii eioa?oaena. Caeanue oaeaea iiaoo ia?a/eneyoueny
eciaiyaiua onoaiiaee naienoa aeey eaaeaeiai iauaeoa.
Ieii Project(I?iaeo).
Visual Basic – i?ia?aiia ninoieo ec ianeieueeeo oaeeia, eioi?ua
niae?athony aianoa, eiaaea i?ia?aiia aioiaa. A ieia Project
ia?a/eneythony ana oaeeu, eniieuecoaiua i?e i?ia?aiie?iaaiee.
Oaeeu i?iaeoa niaea?aeao nienie anao iiaeaea?aeeaaaiuo oaeeia e i?ia?aii
i?iaeoa e eo ?anoe?aiea vbp (Visual Basic program).
A Visual Basic 5 a ieii Project iiaeii iaeiia?aiaiii caa?oceoue
ianeieueei oaeeia i?iaeoia.
A Visual Basic i?aaeoniio?aia iia?aoeaiay ni?aai/iay nenoaia,
aeeth/athuay eioi?iaoeeth i n?aaea i?ia?aiie?iaaiey, eino?oiaioao e
ycuea i?ia?aiie?iaaiey Visual Basic.
N?aaenoaa oi?aaeaiey. N eo iiiiuueth nicaeathony iauaeou e oi?iu,
auaiaeeony eioi?iaoeey a oaenoiaii aeiea, i?iniao?eaathony aeenee e
iaiee a nenoaia, ia?aaaouaathony aeaiiua, aaiaeeiua iieueciaaoaeai,
caioneathony Windows-i?eeiaeaiey e i?iniao?eaathony caiene aac aeaiiuo.
sscue Visual Basic.
sscue i?ia?aiie?iaaiey Visual Basic niaea?aeeo ianeieueei nioai
eino?oeoeee, ooieoeee e niaoeeaeueiuo neiaieia. Ii i?aaeiacia/ai ia
oieueei aeey eniieueciaaiey a i?ia?aiiiii i?iaeoeoa Visual Basic,
Microsoft Visual Basic for Application aeeth/ai a ninoaa Microsoft
Excel, Microsoft Word, Microsoft Access, Microsoft PowerPoint, Microsoft
Project e ae?oaeo i?eeiaeaiee aeey Windows.
Ia?aiaiiua e iia?aoi?u.
Visual Basic iicaieyao ?aca?ae?iaaoue ia?aiaiiua, n oeacaieai ?acia?a e
aac iiiai, ?aaioaoue n ?acee/iuie oeiaie aeaiiuo, eniieueciaaoue
eiinoaiou, ?aaioaoue n iaoaiaoe/aneeie iia?aoi?aie e ooieoeeyie,
eniieueciaaoue aeiiieieoaeueiua iia?aoi?u. I?aaeoniio?aii eniieueciaaiea
iia?aoi?ia oeeeeia For..Next, Do, iauaeoia oeia “ oaeia?” (iaaeaeeiue
naeoiaeiia? a i?ia?aiia). Oi/iinoue onoaiiaeaiey a?aiaie a i?ia?aiia
ninoaaeyao 1 ieeeenaeoiaeo, eee 1/1000 nae. Caiouaiiue oaeia? iinoiyiii
?aaioaao – o.a. auiieiyaony niioaaonoaothuay i?ioeaaeo?a ia?aaioee
i?a?uaaiey /a?ac caaeaiiue eioa?aae a?aiaie – aei oao ii?, iiea
iieueciaaoaeue ia inoaiiaeo oaeia? eee ia ioeeth/eo i?ia?aiio.
Oeiu aeaiiuoOei?acia? (aaeo)Aeeaiacii cia/aieeI?eia?
eniieueciaaieyInteger (Oeaeia)2io – 32768 aei 32767Dim Birds%
Birds%=37Long Integer (Aeeeiiia oeaeia)4io – 2147483648 aei
2147483647Dim Loan&
Loan&=350,000Single-precision Floating paint (Iaeeia?iie oi/iinoe n
ieaaathuae aeanyoe/iie oi/eie)4io – 3,402823A38 aei 3,4402823A38Dim
Price!
Price!=899.99Double-precision Floating paint (Aeaieiie oi/iinoe n
ieaaathuae aeanyoe/iie oi/eie)8io -1,79769313486232D308 aei
1,79769313486232 D308Dim pi# pi#=3.1415926535Currency (aeaiaaeiua
aaeeieoeu)8io -922337203685477,5808 aei 922337203685477,5807Dim Debt@
Debt@=7600300,50String (No?iea)1 ia neiaieio 0 aei 65535 neiaieiaDim
Dog$
Dog$=’pointer’Boolean (Eiae/aneia)2True(enoeia) eee False(eiaeue)Dim
Flag as boolean
Flag=TrueDate (Aeaoa)8io January(ssiaa?ue) 1,100, aei
December(Aeaeaa?ue) 31,9999Dim Birthday as Date
Birthday=#3-1-63#Variant (Aa?eaio)16 (aeey /enae); 22+1 ia neiaie (aeey
no?ie)aeey anao oeiia aeaiiuoDim Total
Total=289.13
Iaoaiaoe/aneea iia?aoi?u e ooieoeeeIia?aoeeyIaoaiaoe/aneia
aeaenoaea+Neiaeaiea -Au/eoaiea*Oiiiaeaiea/AeaeaieaOeaeay /anoue io
aeaeaieyModInoaoie io aeaeaiey^Aicaaaeaiea a noaiaiue&Neeyiea
(eiieaoaiaoeey) no?ie
OoieoeeyAeaenoaeaabs(n) Aica?auaao aaniethoiia cia/aiea
natn(n)Aica?auaao a?eoaiaain n a ?aaeeaiao cos(n)Aica?auaao eineion oaea
n a ?aaeeaiaoExp(n)Aica?auaao eiinoaioo a a noaiaie nSgn(n)Aaia?e?oao
neo/aeiia /enei iaaeaeo 0 e 1 Rnd(n)aica?auaao -1 , anee n0 Sin(n)Aica?auaao neion oaea n a
?aaeeaiaoSqr(n)eaaae?aoiue ei?aiue ec nStr(n)I?aia?acoao /eneiaia
cia/aiea a no?ieoTan(n)Aica?auaao oaiaain oaea n a
?aaeeaiaoVal(n)I?aia?acoao no?ieo a /eneiaia cia/aiea
Eniieueciaaiea oi?i.
Oi?iu iiaoo auoue iiaeaeueiuie e iaiiaeaeueiuie.
Visual Basic iaeaaeaao i/aiue aeaeie nenoaiie eniieueciaaiey oi?i,
Iiaeii naeaeaoue ana oi?iu a i?ia?aiia aeaeeiuie iaeiia?aiaiii eee aea
caa?oaeaoue e aua?oaeaoue oi?iu ii ia?a iaiaoiaeeiinoe.
Iiaeaeueiay (oi?iaeueiay) oi?ia – oi?ia, eioi?ay anaaaea aeieaeia
eniieueciaaoueny i?e aa ioia?aaeaiee ia ye?aia, iia inoaaony ia ia?aii
ieaia, iiea iieueciaaoaeue ia uaeeiao ia eiiiea IE, ia Cancel eee ia
ioi?aaeo aa.
Oi?ia eioi?oth iieueciaaoaeue iiaeao ioeeth/eoue, iacuaaaony
iaiiaeaeueiie(iaoi?iaeueiie). A aieueoeinoaa i?eeiaeaiee a Microsoft
Windows aeey ioia?aaeaiey eioi?iaoeee eniieuecothony iaiiaeaeueiua
oi?iu, iineieueeo iie i?aaeoniao?eaatho aieueooth aeaeinoue
eniieueciaaiey, iiyoiio oi?ia i?eieiaaony iaiiaeaeueiie ii oiie/aieth
i?e nicaeaiee iiaie oi?iu. Iiaeii oaeaea caaeaoue ethaia naienoai aeey
oi?iu, aeeth/ay caaieiaie, ?acia?, oei ?aiee, oeaao oiia e neiaieia,
o?eoo oaenoa e oiiiaue ?enoiie.
Visual Basic iicaieyao :
n ?aaioaoue ni n?aaenoaaie oi?aaeaiey
n ?aaioaoue n iaith e aeeaeiaiauie ieiaie
n ?aaioaoue n oi?iaie, i?eioa?aie e ia?aaio/eeaie ioeaie
n aeiaaaeyoue ooaeiaeanoaaiiia ioi?ieaiea e niaoeyooaeou
n eniieueciaaoue iiaeoee e i?ioeaaeo?u
n ?aaioaoue n iaai?aie yeaiaioia e ianneaaie
n ?aaioaoue n oaenoiauie oaeeaie e aacaie aeaiiuo
n acaeiiaeaenoaiaaoue n Microsoft Office
Visual Basic i?aaeinoaaeyao o?e i/aiue iieaciuo iauaeoa aeey
i?aaeinoaaeaiey aeinooia e oaeeiaie nenoaia. Yoi nienee aeeneiauo
iaeiieoaeae, eioi?ua iicaieytho i?ieenouaaoue aeinooiiua aeenee a
nenoaia; nienee aee?aeoi?ee, eioi?ua iicaieytho i?eaioe?iaaoueny a
iaieao ia aua?aiiii aeenea, e nienee oaeeia, iicaieythuea aua?aoue
ioaeiue oaee a iaiea.
Eniieueciaaiea iauaeoia aeaiiuo aeey i?iniio?a aac aeaiiuo Microsoft
Access.
Aeey ?aaiou n aacaie aeaiiuo Visual Basic i?aaeinoaaeyao o?e iauaeoa,
eioi?ua iicaieytho iieacuaaoue e eciaiyoue eioi?iaoeeth a oaeeao aacu
aeaiiuo. Iauaeo aeaiiua, aeaao aeinooi e iieyi e caienyi oaeea aacu
aeaiiuo iaiin?aaenoaaiii ia oi?ia. Iauaeo oaeaea iicaieyao iaiyoue
eioi?iaoeeth a aaca aeaiiuo.
Anee au ?aaoey?ii ?aaioaaoa n aacaie aeaiiuo – iniaaiii n Microsoft
Access, Microsoft FoxPro, Paradox, Brieve e dBase – oi Visual Basic
ieaaeaony aanueia iiuiui n?aaenoaii aeey ia?aaioee e ioia?aaeaiey
aeaiiuo. Iineieueeo Visual Basic i?aaeoniao?eaaao oaoiieiaeth ia?aaioee
aac aeaiiuo, aiaeiae/ioth, eniieuecoaiie Microsoft Access , oi iiaeii
nicaeaaaoue iniiaiua i?eeiaeaiey aeey ?aaiou n aacaie aeaiiuo n
iiiiuueth anaai ianeieueeeo aeanyoeia no?ie a oaenoa i?ia?aiiu.
Visual Basic iiaeao n/eouaaoue e caienuaaoue eioi?iaoeeth a aaco aeaiiuo
?acee/iiai oi?iaoa.
N iiiiuueth Visual Basic iiaeii iino?ieoue nianoaaiiia i?eeiaeaiea ii
ia?aaioea aac aeaiiuo, eioi?ia ioia?aaeaei au oieueei eioi?iaoeeth,
iaiaoiaeeioth iieueciaaoaeth, a oaeaea i?aaeinoaaeyei au iieueciaaoaeth
iaiaoiaeeiua n?aaenoaa aeey ia?aaioee aeaiiuo.
N?aaenoaa oi?aaeaiey Line(io?acie) e Shape(oeao?a) iicaieytho
nicaeaoue aaiiao?e/aneea oeao?u.
Eniieueciaaiea n?aaenoa oi?aaeaiey OLE.
Iiaeii eniieueciaaoue OLE aeey anoaaee iauaeoia ec i?eeiaeaiee a
i?ia?aiiu ia Visual Basic . A ea/anoaa i?eia?ia iauaeoia i?eeiaeaiee
iiaeii i?eaanoe eenou e aeeaa?aiiu Excel, aeieoiaiou Word e
ecia?aaeaiey Microsoft ClipArt. Iauaeoaie i?eeiaeaiee iiaoo auoue eae
iiaua, iaonoaiiaeaiiua aeieoiaiou, oae e nouanoaothuea oaeou,
caa?oaeaaiua n aeenea.
A Visual Basic iiaeii nicaeaoue eae iauaeoiua, oae e oi?aaeythuea
i?eeiaeaiey, iiaeaea?aeeaathuea ooieoeeth Automation(aaoiiaoecaoeey).
I?eeiaeaiey aeey Windows, iieiinoueth iiaeaea?aeeaathuea ooieoeeth
Automation , iicaieytho inouanoaeyoue aeinooi e naiei ooieoeeyi a aeaea
iaai?a iauaeoia n niioaaonoaothueie ei naienoaaie e eiiaiaeaie.
I?eeiaeaiey aeey Windows , eioi?ua i?aaeinoaaeytho naienoaa iauaeoia
iacuaathony iauaeoiuie eee na?aa?iuie i?eeiaeaieyie, a i?ia?aiiu yoe
iauaeou eniieuecothuea, iacuaathony oi?aaeythueie eee eeeaioneeie
i?eeiaeaieyie. Aaoiiaoecaoeey i?aaenoaaeyao niaie i?iiuoeaiiue
noaiaea?o, iicaieythuee inouanoaeoue acaeiiaeaenoaea aeaoo i?eeiaeaiee.
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