c# - C#中字符串中字符的左侧

Question

如何在 C# 中从 emailID 字符串“feedback@abc.com”中获取“@”字符的左侧

谢谢

Answer 1

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