Question

我想削减sring的结尾：

输入字符串：

/O=Shore Tel/OU=CANDY/cn=Recipients/cn=PAgricola
/O=Shore Tel/OU=CANDY/cn=Recipients/cn=YAchmanov
/o=Shore Tel/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Mukul Agrawal2f2
/o=Shore Tel/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Nick Aiello816

输出字符串：

/O=Shore Tel/OU=CANDY/cn=Recipients
/O=Shore Tel/OU=CANDY/cn=Recipients
/o=Shore Tel/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients
/o=Shore Tel/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients

你能给我一个建议吗？

Answer 1

看起来您可以找到"/cn="的最后一个索引，以及从零到该位置的子串：

int pos = str.LastIndexOf("/cn=");
if (pos > 0) {
    str = str.Substring(0, pos);
}

Demo.

Answer 2

LINQ中只有一行

string input = @"/O=Shore Tel/OU=CANDY/cn=Recipients/cn=PAgricola
                 /O=Shore Tel/OU=CANDY/cn=Recipients/cn=YAchmanov
                 /o=Shore Tel/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Mukul Agrawal2f2
                 /o=Shore Tel/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Nick Aiello816";

var result = string.Join("\n", input.Split('\n')
                                    .Select(x => x.Substring(0, x.LastIndexOf('/')))
                                    .ToArray());
Console.WriteLine(result);

为了便于阅读，我使用了verbatim @字符并对齐了子字符串，但这会引入一些不需要的空格。目前尚不清楚输入字符串是如何格式化的，但这里的关键点是设置结果变量的行。

Answer 3

    string s = "/O=Shore Tel/OU=CANDY/cn=Recipients/cn=PAgricola";
    s=s.Substring(0, s.IndexOf("s/cn="));

如何从字符串的末尾对字符串进行子串

3 个答案: