本文整理匯總了VB.NET中System.Decimal.Round方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Decimal.Round方法的具體用法？VB.NET Decimal.Round怎麽用？VB.NET Decimal.Round使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Decimal的用法示例。
在下文中一共展示了Decimal.Round方法的4個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: Example
Module Example
Public Sub Main()
For value As Decimal = 100d To 102d Step .1d
Console.WriteLine("{0} --> {1}", value, Decimal.Round(value))
Next
End Sub
End Module輸出：
100 --> 100 100.1 --> 100 100.2 --> 100 100.3 --> 100 100.4 --> 100 100.5 --> 100 100.6 --> 101 100.7 --> 101 100.8 --> 101 100.9 --> 101 101.0 --> 101 101.1 --> 101 101.2 --> 101 101.3 --> 101 101.4 --> 101 101.5 --> 102 101.6 --> 102 101.7 --> 102 101.8 --> 102 101.9 --> 102 102.0 --> 102
示例2: Example
Public Module Example
Public Sub Main()
' Define a set of Decimal values.
Dim values() As Decimal = { 1.45d, 1.55d, 123.456789d, 123.456789d,
123.456789d, -123.456d,
New Decimal(1230000000, 0, 0, true, 7 ),
New Decimal(1230000000, 0, 0, true, 7 ),
-9999999999.9999999999d,
-9999999999.9999999999d }
' Define a set of integers to for decimals argument.
Dim decimals() As Integer = { 1, 1, 4, 6, 8, 0, 3, 11, 9, 10}
Console.WriteLine("{0,26}{1,8}{2,26}",
"Argument", "Digits", "Result" )
Console.WriteLine("{0,26}{1,8}{2,26}",
"--------", "------", "------" )
For ctr As Integer = 0 To values.Length - 1
Console.WriteLine("{0,26}{1,8}{2,26}",
values(ctr), decimals(ctr),
Decimal.Round(values(ctr), decimals(ctr)))
Next
End Sub
End Module輸出：
Argument Digits Result -------- ------ ------ 1.45 1 1.4 1.55 1 1.6 123.456789 4 123.4568 123.456789 6 123.456789 123.456789 8 123.456789 -123.456 0 -123 -123.0000000 3 -123.000 -123.0000000 11 -123.0000000 -9999999999.9999999999 9 -10000000000.000000000 -9999999999.9999999999 10 -9999999999.9999999999
示例3: Example
Module Example
Public Sub Main()
Console.WriteLine("{0,-10} {1,-10} {2,-10} {3,-15}", "Value", "Default",
"ToEven", "AwayFromZero")
For value As Decimal = 12.0d To 13.0d Step .1d
Console.WriteLine("{0,-10} {1,-10} {2,-10} {3,-15}",
value, Math.Round(value),
Math.Round(value, MidpointRounding.ToEven),
Math.Round(value, MidpointRounding.AwayFromZero))
Next
End Sub
End Module輸出：
Value Default ToEven AwayFromZero 12 12 12 12 12.1 12 12 12 12.2 12 12 12 12.3 12 12 12 12.4 12 12 12 12.5 12 12 13 12.6 13 13 13 12.7 13 13 13 12.8 13 13 13 12.9 13 13 13 13.0 13 13 13
示例4: Sample
' This example demonstrates the Math.Round() method in conjunction
' with the MidpointRounding enumeration.
Class Sample
Public Shared Sub Main()
Dim result As Decimal = 0D
Dim posValue As Decimal = 3.45D
Dim negValue As Decimal = -3.45D
' By default, round a positive and a negative value to the nearest even number.
' The precision of the result is 1 decimal place.
result = Math.Round(posValue, 1)
Console.WriteLine("{0,4} = Math.Round({1,5}, 1)", result, posValue)
result = Math.Round(negValue, 1)
Console.WriteLine("{0,4} = Math.Round({1,5}, 1)", result, negValue)
Console.WriteLine()
' Round a positive value to the nearest even number, then to the nearest number
' away from zero. The precision of the result is 1 decimal place.
result = Math.Round(posValue, 1, MidpointRounding.ToEven)
Console.WriteLine("{0,4} = Math.Round({1,5}, 1, MidpointRounding.ToEven)", _
result, posValue)
result = Math.Round(posValue, 1, MidpointRounding.AwayFromZero)
Console.WriteLine("{0,4} = Math.Round({1,5}, 1, MidpointRounding.AwayFromZero)", _
result, posValue)
Console.WriteLine()
' Round a negative value to the nearest even number, then to the nearest number
' away from zero. The precision of the result is 1 decimal place.
result = Math.Round(negValue, 1, MidpointRounding.ToEven)
Console.WriteLine("{0,4} = Math.Round({1,5}, 1, MidpointRounding.ToEven)", _
result, negValue)
result = Math.Round(negValue, 1, MidpointRounding.AwayFromZero)
Console.WriteLine("{0,4} = Math.Round({1,5}, 1, MidpointRounding.AwayFromZero)", _
result, negValue)
Console.WriteLine()
End Sub
End Class輸出：
3.4 = Math.Round( 3.45, 1) -3.4 = Math.Round(-3.45, 1) 3.4 = Math.Round( 3.45, 1, MidpointRounding.ToEven) 3.5 = Math.Round( 3.45, 1, MidpointRounding.AwayFromZero) -3.4 = Math.Round(-3.45, 1, MidpointRounding.ToEven) -3.5 = Math.Round(-3.45, 1, MidpointRounding.AwayFromZero)