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VBA/Excel/Access/Word/Data Type/Boolean - История изменений
2026-04-07T07:44:21Z
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http://www.vbex.ru/index.php?title=VBA/Excel/Access/Word/Data_Type/Boolean&diff=1871&oldid=prev
в 16:33, 26 мая 2010
2010-05-26T16:33:00Z
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http://www.vbex.ru/index.php?title=VBA/Excel/Access/Word/Data_Type/Boolean&diff=1872&oldid=prev
Admin: 1 версия
2010-05-26T12:48:24Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>==A Boolean variable can be set only to True or False. You can use the keywords True and False to set the value of a Boolean variable==<br />
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<source lang="vb"><br />
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Sub bool()<br />
Dim b As Boolean<br />
b = True<br />
If b = True Then<br />
MsgBox "The product is available."<br />
Else "b = False<br />
MsgBox "The product is not available."<br />
End If<br />
End Sub<br />
</source><br />
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==Pass Boolean type variable to a function==<br />
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<!-- start source code --><br />
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<source lang="vb"><br />
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Function MakeIceCream(VanillaToBeAdded As Boolean) As String<br />
If VanillaToBeAdded Then<br />
MakeIceCream = "Vanilla"<br />
Else<br />
MakeIceCream = "No Vanilla"<br />
End If<br />
End Function<br />
Sub Hungry()<br />
Debug.Print MakeIceCream(True)<br />
End Sub<br />
</source><br />
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==The Boolean data type accepts one of two values, True or False. You may also assign the value 1 (True) or 0 (False) to a Boolean variable.==<br />
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<!-- start source code --><br />
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<source lang="vb"><br />
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Sub bool()<br />
Dim myVal As Boolean<br />
myVal = True<br />
End Sub<br />
</source><br />
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==Use if statement with boolean variable==<br />
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<!-- start source code --><br />
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Sub TestIfTrue()<br />
Dim blnIsTrue As Boolean<br />
blnIsTrue = True<br />
If blnIsTrue = True Then<br />
MsgBox "True"<br />
End If<br />
End Sub<br />
</source><br />
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==Use True literal in If statement==<br />
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<!-- start source code --><br />
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<source lang="vb"><br />
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Sub TestIsTrue()<br />
Dim blnIsTrue As Boolean<br />
blnIsTrue = 2<br />
If blnIsTrue = True Then<br />
MsgBox "True"<br />
End If<br />
End Sub<br />
</source></div>
Admin