Tuple<T1,T2,T3,T4,T5,T6>.IComparable.CompareTo(Object) 方法

 virtual int System.IComparable.CompareTo(System::Object ^ obj) = IComparable::CompareTo;

int IComparable.CompareTo(object obj);

abstract member System.IComparable.CompareTo : obj -> int
override this.System.IComparable.CompareTo : obj -> int

Function CompareTo (obj As Object) As Integer Implements IComparable.CompareTo

参数

返回

一个带符号整数，指示此实例和 obj 在排序顺序中的相对位置，如下表所示。

实现

例外

示例

以下示例创建一个对象数组Tuple<T1,T2,T3,T4,T5,T6>，这些对象包含 1960 到 2000 年美国三个城市的人口数据。 这六个组成部分包括城市名称，后跟从1960年到2000年每隔10年的城市人口。 该示例按未排序顺序显示数组中每个元组的组件，对数组进行排序，然后调用 ToString 方法以按排序顺序显示每个元组。 输出显示数组已按名称排序，这是第一个组件。 请注意，该示例不直接调用 IComparable.CompareTo(Object) 方法。 此方法由 Sort(Array) 数组中每个元素的 方法隐式调用。

using System;

public class Example
{
   public static void Main()
   {
      // Create array of sextuple with population data for three U.S. 
      // cities, 1960-2000.
      Tuple<string, int, int, int, int, int>[] cities = 
          { Tuple.Create("Los Angeles", 2479015, 2816061, 2966850, 3485398, 3694820),
            Tuple.Create("New York", 7781984, 7894862, 7071639, 7322564, 8008278),  
            Tuple.Create("Chicago", 3550904, 3366957, 3005072, 2783726, 2896016) }; 
      
      // Display array in unsorted order.
      Console.WriteLine("In unsorted order:");
      foreach (var city in cities)
         Console.WriteLine(city.ToString());

      Console.WriteLine();
      
      Array.Sort(cities);
                           
      // Display array in sorted order.
      Console.WriteLine("In sorted order:");
      foreach (var city in cities)
         Console.WriteLine(city.ToString());
   }
}
// The example displays the following output:
//    In unsorted order:
//    (Los Angeles, 2479015, 2816061, 2966850, 3485398, 3694820)
//    (New York, 7781984, 7894862, 7071639, 7322564, 8008278)
//    (Chicago, 3550904, 3366957, 3005072, 2783726, 2896016)
//    
//    In sorted order:
//    (Chicago, 3550904, 3366957, 3005072, 2783726, 2896016)
//    (Los Angeles, 2479015, 2816061, 2966850, 3485398, 3694820)
//    (New York, 7781984, 7894862, 7071639, 7322564, 8008278)

open System

// Create array of sextuple with population data for three U.S. 
// cities, 1960-2000.
let cities = 
    [| Tuple.Create("Los Angeles", 2479015, 2816061, 2966850, 3485398, 3694820)
       Tuple.Create("New York", 7781984, 7894862, 7071639, 7322564, 8008278) 
       Tuple.Create("Chicago", 3550904, 3366957, 3005072, 2783726, 2896016) |]

// Display array in unsorted order.
printfn "In unsorted order:"
for city in cities do
    printfn $"{city}"

printfn ""

Array.Sort cities
                    
// Display array in sorted order.
printfn "In sorted order:"
for city in cities do
    printfn $"{city}"
// The example displays the following output:
//    In unsorted order:
//    (Los Angeles, 2479015, 2816061, 2966850, 3485398, 3694820)
//    (New York, 7781984, 7894862, 7071639, 7322564, 8008278)
//    (Chicago, 3550904, 3366957, 3005072, 2783726, 2896016)
//    
//    In sorted order:
//    (Chicago, 3550904, 3366957, 3005072, 2783726, 2896016)
//    (Los Angeles, 2479015, 2816061, 2966850, 3485398, 3694820)
//    (New York, 7781984, 7894862, 7071639, 7322564, 8008278)

Module Example
   Public Sub Main()
      ' Create array of sextuple with population data for three U.S. 
      ' cities, 1960-2000.
      Dim cities() = 
          { Tuple.Create("Los Angeles", 2479015, 2816061, 2966850, 3485398, 3694820),
            Tuple.Create("New York", 7781984, 7894862, 7071639, 7322564, 8008278),  
            Tuple.Create("Chicago", 3550904, 3366957, 3005072, 2783726, 2896016) } 
      
      ' Display array in unsorted order.
      Console.WriteLine("In unsorted order:")
      For Each city In cities
         Console.WriteLine(city.ToString())
      Next
      Console.WriteLine()
      
      Array.Sort(cities) 
                           
      ' Display array in sorted order.
      Console.WriteLine("In sorted order:")
      For Each city In cities
         Console.WriteLine(city.ToString())
      Next
   End Sub
End Module
' The example displays the following output:
'    In unsorted order:
'    (Los Angeles, 2479015, 2816061, 2966850, 3485398, 3694820)
'    (New York, 7781984, 7894862, 7071639, 7322564, 8008278)
'    (Chicago, 3550904, 3366957, 3005072, 2783726, 2896016)
'    
'    In sorted order:
'    (Chicago, 3550904, 3366957, 3005072, 2783726, 2896016)
'    (Los Angeles, 2479015, 2816061, 2966850, 3485398, 3694820)
'    (New York, 7781984, 7894862, 7071639, 7322564, 8008278)

注解

此成员是显式接口成员的实现。 它只能在 Tuple<T1,T2,T3,T4,T5,T6> 实例被强制转换为 IComparable 接口时使用。

此方法提供 IComparable.CompareTo 类的 Tuple<T1,T2,T3,T4,T5,T6> 实现。 虽然 可以直接调用 方法，但它通常由集合排序方法（如 Array.Sort(Array) 和 SortedList.Add）的默认重载调用，以便对集合的成员进行排序。

方法 IComparable.CompareTo(Object) 使用默认对象比较器来比较每个组件。