How to validate a text field with regular expression
Question
我想验证一个以数字或字母开头的文本字段，但不是通过正则表达式来验证任何特殊符号，如（！@＃etc.）。
3 answers
solution1
2 ACCPTED 2011-04-22 07:37:53
尝试这样^[a-zA-Z0-9][a-zA-Z0-9@#$%^&*]*这允许以a-zA-Z0-9开头的字符串和第二个括号中给出的字符
solution2
0 2011-04-22 07:32:59
^[0-9A-Za-z]
solution3
0 2011-04-22 08:46:10
\\w表示单词字符： [a-zA-Z_0-9]
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.
Related Question
How to validate Regular Expression in real time on jtextbox?
regular expression to validate 2 alphanumerics
Regular expression to validate username
Regular expression to validate a name
How to escape text for regular expression?
Regular Expression to Validate a Math Expression
How to catch empty field using regular expression?
Need Regular Expression to validate string
regular expression to validate number pipes
validate statement using regular expression
Related Tags