c# - String.CompareTo 是如何工作的？

Question

当我比较包含正数/负数的字符串时，例如:

int res1 = "-1".CompareTo("1");
int res2 = "-1".CompareTo("2");

res1 equals 1.
res2 equals -1.

String.CompareTo 是如何工作的？这意味着它的顺序是“2 -1 1”...

Answer 1

来自 MSDN :

Certain nonalphanumeric characters might have special weights assigned to them. For example, the hyphen ("-") might have a very small weight assigned to it so that "coop" and "co-op" appear next to each other in a sorted list.

编辑:忘了说了，这跟string.Compare使用的CompareOptions枚举有关。