从C# 9.0开始，该语言就支持Pattern Matching，模式语法的概述可以在here中找到。
以此作为参考，很容易在C#中为上述每种情况实现非常相似的功能：

foreach (int n in Enumerable.Range(0, 101)) {
  Console.WriteLine((n % 5, n % 2, n % 7) switch {
    (0, var y, var z) => String.Format("First is `0`, `y` is {0}, and `z` is {1}", y, z),
    (1, _, _) => "First is `1` and the rest doesn't matter",
    (_, _, 2)  => "last is `2` and the rest doesn't matter",
    (3, _, 4)  => "First is `3`, last is `4`, and the rest doesn't matter",
    _      => "It doesn't matter what they are",
  });
}

这里有几件事需要特别注意：
1.我们必须使用switch语句的结果。例如，这会导致错误：

foreach (int n in Enumerable.Range(0, 101)) {
  // causes: 
  //   error CS0201: Only assignment, call, increment, 
  //       decrement, await, and new object expressions 
  //       can be used as a statement
  (n % 5, n % 2, n % 7) switch {
    (0, var y, var z) => Console.WriteLine("First is `0`, `y` is {0}, and `z` is {1}", y, z),
    (1, _, _)  => Console.WriteLine("First is `1` and the rest doesn't matter"),
    (_, _, 2)  => Console.WriteLine("last is `2` and the rest doesn't matter"),
    (3, _, 4)  => Console.WriteLine("First is `3`, last is `4`, and the rest doesn't matter"),
    _      => Console.WriteLine("It doesn't matter what they are"),
  };
}

1.如果我们想使用..来丢弃0个或更多的位置项，我们需要使用C# 11.0或更高版本，并且需要将其示例化为List或array，然后改用方括号[]而不是圆括号()，如下所示：

foreach (int n in Enumerable.Range(0, 101)) {
  // this can also be `new int[] { n % 5, n % 2, n % 7 }`
  Console.WriteLine(new List<int> { n % 5, n % 2, n % 7 } switch {
    [0, var y, var z] => String.Format("First is `0`, `y` is {0}, and `z` is {1}", y, z),
    [1, ..] => "First is `1` and the rest doesn't matter",
    [.., 2] => "last is `2` and the rest doesn't matter",
    [3, .., 4] => "First is `3`, last is `4`, and the rest doesn't matter",
    _ => "It doesn't matter what they are",
  });
}