VB.NET Decimal.Round方法代码示例

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本文整理汇总了VB.NET中System.Decimal.Round方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Decimal.Round方法的具体用法？VB.NET Decimal.Round怎么用？VB.NET Decimal.Round使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Decimal的用法示例。

在下文中一共展示了Decimal.Round方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。

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

开发者ID:VB.NET开发者，项目名称:System，代码行数:7，代码来源:Decimal.Round

输出：

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

开发者ID:VB.NET开发者，项目名称:System，代码行数:23，代码来源:Decimal.Round

输出：

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

开发者ID:VB.NET开发者，项目名称:System，代码行数:12，代码来源:Decimal.Round

输出：

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

开发者ID:VB.NET开发者，项目名称:System，代码行数:38，代码来源:Decimal.Round

输出：

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)

注：本文中的System.Decimal.Round方法示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。