如何根据数组中指定索引上的元素对数组进行排序

I have a list<> of int arrays created like this

我有一个像这样创建的int数组的列表<>

List<uint[]> onMinterm = new List<uint[]>();

and it has got 1000 members. Every list members has 3 unsigned integers, I add my arrays just like that

它有1000个成员。每个列表成员都有3个无符号整数，我像这样添加数组

uint[] sayi= new uint[3];    
sayi[0] = 34432; sayi[1] = 63533; sayi[2] = 12;    
onMinterm.Add(sayi);

I want to sort my 1000 list (onMinterm) according to each 3rd member (sayi[2]). List will be sorted in decending order. Sample member should be at the end as its 3rd value is very small like 12.

我想根据每一个成员(sayi[2])对我的1000个列表进行排序(onMinterm)。列表将按顺序排列。样本成员应该在最后，因为它的第三个值很小，像12。

2 个解决方案

#1

I want to sort my 1000 list (onMinterm) according to each 3rd member (sayi[2]). List will be sorted descending.

我想根据每一个成员(sayi[2])对我的1000个列表进行排序(onMinterm)。列表将按降序排序。

You can do this, if you are ok with getting an IOrderedEnumerable as the result.

您可以这样做，如果您可以得到一个IOrderedEnumerable作为结果。

var ordered = onMinterm.OrderByDescending(x => x[2]);

If you want to do an in-place sort:

如果你想进行就地排序:

onMinterm.Sort((x1, x2)=> x2[2].CompareTo(x1[2]));

#2

You can sort a List<> in place.

您可以对<>的列表进行排序。

    class IntArrayComparer : IComparer<int[]>
    {
      public int Compare(T left, T right)
      {
        return right[2].CompareTo(left[2]);
      }
    }

    myList.Sort(new IntArrayComparer());

#1