VB.NET Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1属性代码示例

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本文整理汇总了VB.NET中System.Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1属性的典型用法代码示例。如果您正苦于以下问题：VB.NET Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1属性的具体用法？VB.NET Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1怎么用？VB.NET Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1使用的例子？那么恭喜您, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类System.Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>的用法示例。

在下文中一共展示了Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1属性的1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
    Sub Main()
        Dim from1980 As Tuple(Of Integer, Integer, Integer) =
            Tuple.Create(1203339, 1027974, 951270)
        Dim from1910 As New Tuple(Of Integer, Integer, Integer, Integer, Integer, Integer, Integer, _
            Tuple(Of Integer, Integer, Integer)) _
            (465766, 993078, 1568622, 1623452, 1849568, 1670144, 1511462, from1980)
        Dim population As New Tuple(Of String, Integer, Integer, Integer, Integer, Integer, Integer, _ 
            Tuple(Of Integer, Integer, Integer, Integer, Integer, Integer, Integer, Tuple(Of Integer, Integer, Integer))) _
            ("Detroit", 1860, 45619, 79577, 116340, 205876, 285704, from1910)

        Console.WriteLine("Population of {0}", population.Item1)
        Console.WriteLine()
        Console.WriteLine("{0,5}  {1,14}  {2,10}", "Year", "Population", "Change")

        Dim year As Integer = population.Item2
        ShowPopulation(year, population.Item3)
        year += 10
        ShowPopulationChange(year, population.Item4, population.Item3)
        year += 10
        ShowPopulationChange(year, population.Item5, population.Item4)
        year += 10
        ShowPopulationChange(year, population.Item6, population.Item5)
        year += 10
        ShowPopulationChange(year, population.Item7, population.Item6)
        year += 10
        ShowPopulationChange(year, population.Rest.Item1, population.Item7)
        year += 10
        ShowPopulationChange(year, population.Rest.Item2, population.Rest.Item1)
        year += 10
        ShowPopulationChange(year, population.Rest.Item3, population.Rest.Item2)
        year += 10
        ShowPopulationChange(year, population.Rest.Item4, population.Rest.Item3)
        year += 10
        ShowPopulationChange(year, population.Rest.Item5, population.Rest.Item4)
        year += 10
        ShowPopulationChange(year, population.Rest.Item6, population.Rest.Item5)
        year += 10
        ShowPopulationChange(year, population.Rest.Item7, population.Rest.Item6)
        year += 10
        ShowPopulationChange(year, population.Rest.Rest.Item1, population.Rest.Item7)
        year += 10
        ShowPopulationChange(year, population.Rest.Rest.Item2, population.Rest.Rest.Item1)
        year += 10
        ShowPopulationChange(year, population.Rest.Rest.Item3, population.Rest.Rest.Item2)
    End Sub

    Private Sub ShowPopulationChange(ByVal year As Integer, ByVal newPopulation As Integer, ByVal oldPopulation As Integer)
        Console.WriteLine("{0,5}  {1,14:N0}  {2,10:P2}", year, newPopulation,
                          (newPopulation - oldPopulation) / oldPopulation / 10)
    End Sub

    Private Sub ShowPopulation(ByVal year As Integer, ByVal newPopulation As Integer)
        Console.WriteLine("{0,5}  {1,14:N0}  {2,10:P2}", year, newPopulation, "n/a")
    End Sub
End Module

开发者ID:VB.NET开发者，项目名称:System，代码行数:56，代码来源:Tuple.Item1

输出：

Population of Detroit
Year      Population      Change
1860          45,619         n/a
1870          79,577      7.44 %
1880         116,340      4.62 %
1890         205,876      7.70 %
1900         285,704      3.88 %
1910         465,766      6.30 %
1920         993,078     11.32 %
1930       1,568,622      5.80 %
1940       1,623,452      0.35 %
1950       1,849,568      1.39 %
1960       1,670,144     -0.97 %
1970       1,511,462     -0.95 %
1980       1,203,339     -2.04 %
1990       1,027,974     -1.46 %
2000         951,270     -0.75 %

注：本文中的System.Tuple<T1,T2,T3,T4,T5,T6,T7,TRest>.Item1属性示例整理自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。