电子邮件模式的正则表达式 [英] Regular expression for email pattern
问题描述
嗨我使用下面这个表达式来验证电子邮件
/ ^（[0-9a-zA-Z _] + [-._ +]）* [0 -9a-zA-Z _] + @（[ - 0-9a-zA-Z] + [。]）+ [a-zA-Z] {2,6} $ /
工作正常。但是当用户在@符号之前输入 _时，我需要提供验证提醒。喜欢这封电子邮件[abc_C _ @ abc.com]
我不知道怎么删除。所以请建议我尽快关闭它
我尝试过：
如果我删除_则将考虑整个下划线。
/
其工作正常。但是当用户在@符号之前输入 _时，我需要提供验证提醒。喜欢这封电子邮件[abc_C _ @ abc.com]
我不知道怎么删除。所以请建议我尽快关闭它
我尝试过：
如果我删除_则将考虑整个下划线。
引用：我要'知道如何删除。
为什么要删除完全合法的_。
以下是RegEx文档的链接：
perlre - perldoc.perl.org [ ^ ]
以下是帮助构建RegEx并调试它们的工具的链接：
.NET正则表达式测试程序 - 正则表达式风暴 [ ^ ]
Expresso正则表达式工具 [ ^ ]
这个显示RegEx是一个很好的图表，它非常有助于理解RegEx的作用：
Debuggex：在线可视正则表达式测试器。 JavaScript，Python和PCRE。 [ ^ ]
试试这个，
/^([0-9a-zA-Z_]+ [ - ._+]）* [0-图9a-ZA-Z] + @（[ - 。0-9A-ZA-Z] + []）+ [A-ZA-Z] {2,6-}
Hi im using this this below expression to validated email
/^([0-9a-zA-Z_]+[-._+])*[0-9a-zA-Z_]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}$/
its working fine. but i need to give the validation alert when user entered _ before the @ symbol. like this email[abc_C_@abc.com]
i dont know how to remove. so pls advice me to close it shortly
What I have tried:
if i remove _ then the entire underscore will be consider.
/
its working fine. but i need to give the validation alert when user entered _ before the @ symbol. like this email[abc_C_@abc.com]
i dont know how to remove. so pls advice me to close it shortly
What I have tried:
if i remove _ then the entire underscore will be consider.
Quote:i don't know how to remove.
Why do you want to remove the _ which is perfectly legal.
Here is a link to RegEx documentation:
perlre - perldoc.perl.org[^]
Here is links to tools to help build RegEx and debug them:
.NET Regex Tester - Regex Storm[^]
Expresso Regular Expression Tool[^]
This one show you the RegEx as a nice graph which is really helpful to understand what is doing a RegEx:
Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.[^]
try this,
/^([0-9a-zA-Z_]+[-._+])*[0-9a-zA-Z]+@([-0-9a-zA-Z]+[.])+[a-zA-Z]{2,6}
这篇关于电子邮件模式的正则表达式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
