本文整理汇总了C#中System.Collections.Generic.Comparer<T>类的典型用法代码示例。如果您正苦于以下问题：C# Comparer<T>类的具体用法？C# Comparer<T>怎么用？C# Comparer<T>使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
Comparer<T>类属于System.Collections.Generic命名空间，在下文中一共展示了Comparer<T>类的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，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Main
//引入命名空间
using System;
using System.Collections;
using System.Collections.Generic;
class Program
{
static void Main(string[] args)
{
List<Box> Boxes = new List<Box>();
Boxes.Add(new Box(4, 20, 14));
Boxes.Add(new Box(12, 12, 12));
Boxes.Add(new Box(8, 20, 10));
Boxes.Add(new Box(6, 10, 2));
Boxes.Add(new Box(2, 8, 4));
Boxes.Add(new Box(2, 6, 8));
Boxes.Add(new Box(4, 12, 20));
Boxes.Add(new Box(18, 10, 4));
Boxes.Add(new Box(24, 4, 18));
Boxes.Add(new Box(10, 4, 16));
Boxes.Add(new Box(10, 2, 10));
Boxes.Add(new Box(6, 18, 2));
Boxes.Add(new Box(8, 12, 4));
Boxes.Add(new Box(12, 10, 8));
Boxes.Add(new Box(14, 6, 6));
Boxes.Add(new Box(16, 6, 16));
Boxes.Add(new Box(2, 8, 12));
Boxes.Add(new Box(4, 24, 8));
Boxes.Add(new Box(8, 6, 20));
Boxes.Add(new Box(18, 18, 12));
// Sort by an Comparer<T> implementation that sorts
// first by the length.
Boxes.Sort(new BoxLengthFirst());
Console.WriteLine("H - L - W");
Console.WriteLine("==========");
foreach (Box bx in Boxes)
{
Console.WriteLine("{0}\t{1}\t{2}",
bx.Height.ToString(), bx.Length.ToString(),
bx.Width.ToString());
}
Console.WriteLine();
Console.WriteLine("H - L - W");
Console.WriteLine("==========");
// Get the default comparer that
// sorts first by the height.
Comparer<Box> defComp = Comparer<Box>.Default;
// Calling Boxes.Sort() with no parameter
// is the same as calling Boxs.Sort(defComp)
// because they are both using the default comparer.
Boxes.Sort();
foreach (Box bx in Boxes)
{
Console.WriteLine("{0}\t{1}\t{2}",
bx.Height.ToString(), bx.Length.ToString(),
bx.Width.ToString());
}
// This explicit interface implementation
// compares first by the length.
// Returns -1 because the length of BoxA
// is less than the length of BoxB.
BoxLengthFirst LengthFirst = new BoxLengthFirst();
Comparer<Box> bc = (Comparer<Box>) LengthFirst;
Box BoxA = new Box(2, 6, 8);
Box BoxB = new Box(10, 12, 14);
int x = LengthFirst.Compare(BoxA, BoxB);
Console.WriteLine();
Console.WriteLine(x.ToString());
}
}
public class BoxLengthFirst : Comparer<Box>
{
// Compares by Length, Height, and Width.
public override int Compare(Box x, Box y)
{
if (x.Length.CompareTo(y.Length) != 0)
{
return x.Length.CompareTo(y.Length);
}
else if (x.Height.CompareTo(y.Height) != 0)
{
return x.Height.CompareTo(y.Height);
}
else if (x.Width.CompareTo(y.Width) != 0)
{
return x.Width.CompareTo(y.Width);
}
else
{
return 0;
}
}
}
// This class is not demonstrated in the Main method
// and is provided only to show how to implement
// the interface. It is recommended to derive
// from Comparer<T> instead of implementing IComparer<T>.
public class BoxComp : IComparer<Box>
{
// Compares by Height, Length, and Width.
public int Compare(Box x, Box y)
{
if (x.Height.CompareTo(y.Height) != 0)
{
return x.Height.CompareTo(y.Height);
}
else if (x.Length.CompareTo(y.Length) != 0)
{
return x.Length.CompareTo(y.Length);
}
else if (x.Width.CompareTo(y.Width) != 0)
{
return x.Width.CompareTo(y.Width);
}
else
{
return 0;
}
}
}
public class Box : IComparable<Box>
{
public Box(int h, int l, int w)
{
this.Height = h;
this.Length = l;
this.Width = w;
}
public int Height { get; private set; }
public int Length { get; private set; }
public int Width { get; private set; }
public int CompareTo(Box other)
{
// Compares Height, Length, and Width.
if (this.Height.CompareTo(other.Height) != 0)
{
return this.Height.CompareTo(other.Height);
}
else if (this.Length.CompareTo(other.Length) != 0)
{
return this.Length.CompareTo(other.Length);
}
else if (this.Width.CompareTo(other.Width) != 0)
{
return this.Width.CompareTo(other.Width);
}
else
{
return 0;
}
}
}