C# 从电子邮件地址获取域名
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Get domain name from an email address
提问by
I have an email address
我有一个电子邮件地址
[email protected]
I want to get the domain name from the email address. Can I achieve this with Regex?
我想从电子邮件地址获取域名。我可以用 Regex 实现这一点吗？
回答by Default
Using MailAddressyou can fetch the Hostfrom a property instead
使用MailAddress您可以Host从属性中获取
MailAddress address = new MailAddress("[email protected]");
string host = address.Host; // host contains yahoo.com
回答by poke
Or for string based solutions:
或者对于基于字符串的解决方案：
string address = "[email protected]";
string host;
// using Split
host = address.Split('@')[1];
// using Split with maximum number of substrings (more explicit)
host = address.Split(new char[] { '@' }, 2)[1];
// using Substring/IndexOf
host = address.Substring(address.IndexOf('@') + 1);
回答by Chris
If Default's answeris not what you're attempting you could always Splitthe email string after the '@'
如果Default 的答案不是您要尝试的答案，您总是可以Split在'@'
string s = "[email protected]";
string[] words = s.Split('@');
string[0]would be xyzif you needed it in futurestring[1]would be yahoo.com
string[0]是xyz，如果你需要它在未来string[1]将是yahoo.com
But Default's answer is certainly an easier way of approaching this.
但是 Default 的回答肯定是解决这个问题的更简单的方法。
