C＃中移动数组最快的方法 [英] C# quickest way to shift array

问题描述

如何快速在数组中一个班的所有项目的左侧，用null填充结束了吗？

How can I quickly shift all the items in an array one to the left, padding the end with null?

例如，[0,1,2,3,4,5,6]将成为[1,2,3,4,5,6，空]

For example, [0,1,2,3,4,5,6] would become [1,2,3,4,5,6,null]

编辑：我连忙说，但我想我的意思有效。我需要这样做，而无需创建一个列表或其他一些数据结构。这是我需要做几十万次的时间尽可能短量。

I said quickly but I guess I meant efficiently. I need to do this without creating a List or some other data structure. This is something I need to do several hundred thousand times in as short amount of time as possible.

推荐答案

只是做：

int?[] newAr = new int?[oldAr.Length];
for (int i = 1; i < oldAr.Length; i++)
   newAr[i - 1] = oldAr[i];

这篇关于C＃中移动数组最快的方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！