C＃中字符串中的字符左侧

Question

How do I get the left of "@" character from the emailID string "feedback@abc.com" in C#

Thanks

Answer 1

string email = "feedback@abc.comm";
int index = email.IndexOf("@");
string user = (index > 0 ? email.Substring(0, index) : "");

Answer 2

string username = new System.Net.Mail.MailAddress("feedback@abc.com").User;

Answer 3

var email = "feedback@abc.com";
var name = email.Substring(0, email.IndexOf("@"));

You'll want to do some sanity checks like make sure it's not null and that you actually find the "@" sign.

Answer 4

email.Split（'@'）。Last（）email.Split（'@'）。First（）

Answer 5

Use the Substring and IndexOf methods:

var email = "feedback@abc.com";
var user = email.Substring(0, email.IndexOf("@"))

Answer 6

Something like this should work.

string email = "test@testdomain.com";
string user = email.Substring(0, email.IndexOf("@"));