c＃.net tilde（ascii 126）对字符串进行排序 [英] c# .net tilde (ascii 126) sorting a string

问题描述

c＃.net tilde（ascii 126）当排序一个字符串似乎在1之前（ascii 49）这是正确的吗？

我，〜J，123，K，〜E，A，〜G，U

我期望订单是123，A，I，J，K，U，~E，~G，~J

不~E，~G，~J，123，A，I， K，U

c# .net tilde (ascii 126) when sorting a string seems to come before 1 (ascii 49) is this correct?
"I", "~J", "123", "K", "~E", "A", "~G", "U"
I expected the order to be 123, A, I, J, K, U, ~E, ~G, ~J
Not ~E, ~G, ~J, 123, A, I, K, U

推荐答案

C＃是.NET，因此它默认为Unicode字符，而不是ASCII - 但是，这在非重音英语中几乎没有什么不同。



unicode字符顺序完全符合您的预期： http://unicode-table.com / en / [ ^ ]并快速检查：

C# is .NET, so it defaults to Unicode characters, not ASCII - however, this makes little different in unaccented English.

The unicode character order is exactly as you would expect: http://unicode-table.com/en/[^] and a quick check:

string[] data = {"I", "~J", "123", "K", "~E", "A", "~G", "U"};
Array.Sort(data);
foreach (string s in data)
    {
    Console.WriteLine(s);
    }

显示你所看到的内容！



但这是因为它使用的是默认的比较器，这不是一个序数比较 - 这是一个语言比较！

尝试使用序数比较：

shows exactly what you see!

But that's because it's using the default comparer, which is not an ordinal compare - it's a linguistic comparison!
Try using an Ordinal comparison:

string[] data = {"I", "~J", "123", "K", "~E", "A", "~G", "U"};
Array.Sort(data, StringComparer.Ordinal);
foreach (string s in data)
    {
    Console.WriteLine(s);
    }

你会得到你想要的结果：

And you will get the result you want:

123
A
I
K
U
~E
~G
~J

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