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marek93
Užívateľ
Založený: 11.07.2011
Príspevky: 581
Bydlisko: Detva
 |  Zaslal: St 10.08.11 18:45 |   |
Nazdar. Mám doma program Visual Basic a k tomu učebnicu pre stredné školy. Zaujíma ma, že či sa oplatí učiť v tomto programe? Kde ho využijem? |
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BX
Užívateľ
Založený: 17.07.2011
Príspevky: 94
| | Zaslal: St 10.08.11 18:50 | |
Ak sa pýtaš takto, tak nikde. |
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marek93
Užívateľ
Založený: 11.07.2011
Príspevky: 581
Bydlisko: Detva
| | Zaslal: St 10.08.11 18:53 | |
Fú tak takéto stručné vysvetlenie som nečakal. Chcel by som aby ste to viac rozpísali. |
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Fico
Skúsený užívateľ
Založený: 11.01.2009
Príspevky: 1052
| | Zaslal: St 10.08.11 19:03 | |
Vyhody:
| citácia: | a) It is not just a language to program in but a whole graphical
development environment. This aids your programming skills allowing
you to concentrate on developing novel ideas instead of going over old
ground.
b) It is quick to develop new programs. A newcomer will have a window
proudly opening and greeting you with "Hello World!" - always the
programmers first program - in less than 5 minutes.
c) OLE programming is simple. This allows you to embed objects such
as Word documents and Excel spreadsheets with a minimum of fuss.
d) It can be used as a front end to SQL (or other databases) allowing
the user to enhance the way they access their data.
e) It is widely used for in-house application program development and
for prototyping.
f) It can also be used to create ActiveX and COM components for use
online or in desktop applications.
g) It is very simple to learn. As the name Basic suggests it uses
easy to understand and remember terminology.
h) Because of its popularity there are many resources available to the
user - websites are numerous and books are plentiful for the
programmer needing help.
i) Strict programming structures can be "turned off" to allow you to
quickly develop a program - this could also be seen as a disadvantage
when a bug arises!
j) Perhaps its strongest advantage is its simplicity. There is hardly
any learning curve for programmers to begin learning the language or
coming from another language.
k) VB is a "component integration language" which utilises Microsoft's
Component Object Model ("COM") that allows parts to be bolted onto
programs easily. These COM programs can be written in any language. |
Nevyhody:
| citácia: | a) It is not suited to complex modern programming techniques. Because
of its age little is being down to further the VB environment and it
has been largely superceded by VB.net and other languages (even by
Microsoft!).
b) Programs that are written in it tend not to be the quickest, this
is largely due to the additional code that is often included that is
not really necessary for your program to run.
c) VB is an interpreted language which again slows the execution of
your program down.
d) VB programs require large libraries to be present on your PC to
enable them to work. If you do not have them the programmer either
has to supply them or you have to download them.
e) Because of its over-simplified approach VB can produce programmers
that are sloppy in their work leading to workarounds having to be
employed.
f) Because of its age VB does not allow many modern techniques such as
Object Orientated Programming.
g) As you can control the checking and warning systems in VB it often
enables the programmer to write code that is very difficult to
troubleshoot when a bug arises.
h) VB consists of features and syntax borrowed from other languages
(often ones that are now no longer used). Watch a programmers face
when you talk to them about "GoSub" and "On Error" commands!
i) OOP - Object Orientated Programming - is missing from VB, this is
one of the most common techniques in all new languages allowing code
to be easily reused (although this is available in VB.net)
j) There is no threading support (although this is also available in VB.net).
k) The programs a programmer produces in VB are not portable and
cannot be used on non-Windows systems.
l) Mathematical performance is poor which slows down the speed of your program.
m) Service Packs! Everyone knows about Microsoft's love of service
packs to fix the many bugs that have accumulated over time. |
Takto si sam zhrn, ci sa ti oplati ucit alebo nie. Kazdy ti tu totiz moze povedat vlastny nazor, nie fakty. Vyuzijes ho najskor pri programovani desktopovych pripadne webovych aplikacii. |
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