Question

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What is the best regular expression for validating email addresses?

希腊

我怎么能找到电子邮件?

"sdafsad@asdfsa.com"
"sdaf-sad@asdfsa.com"
"sdaf-sad@asdfsa.com"
"sdaf-sad@asdf-sa.com"
"sdaf_sad@asdf-sa.com"

我还如何能够找到这些项目:

track0; (any track number);
track50 (any track number);
Track 0 (any track number);
Track 10 (any track number);
Track10 (any track number);

Answer 1

[A-Z0-9._%+-]+@[A-Z0-9.-]+。 [A-Z]{2,4}

Answer 2

using System.Text.RegularExpressions;
Regex emailregex = new Regex("(?<user>[^@]+)@(?<host>.+)");
Match m = emailregex.Match(s);

(2) 您是否希望以这种格式验证所有条目,或只是想获得“(任何轨道编号)”价值?

Answer 3

第一,尝试搜索或使用。

第二,尝试:

Regex regex = new Regex(@"[^d]+d");