似乎总和不定义的IEnumerable＆LT; UINT＆GT; （和其他无符号整数，对于这个问题）

It seems that Sum is not defined for IEnumerable<uint> (and other unsigned integers, for that matter)

var s = new int[] { 1, 2, 3 };
s.Sum(); //works fine

var us = new uint[] { 1, 2, 3 };
us.Sum(); //missing method

我想知道：

MSDN：Enumerable.Sum

推荐答案

只是一个猜测：因为UINT是不符合CLS。不知道这会权衡他们决定不支持它。

Just a guess: Because uint is not CLS-compliant. Not sure if that would weigh in their decision to not support it.