如何检查字符串的@pattern 注解 2-2E454
How to check @pattern annotation for a string 2-2E454
如何检查包含字母数字和 - 如 (1-1k546) 的字符串的 @pattern 注释。
\d-[0-9a-zA-Z]+
\d match a digit [0-9]
- matches the character - literally
[0-9a-zA-Z]+ match a single character present in the list below
Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
0-9 a single character in the range between 0 and 9
a-z a single character in the range between a and z (case sensitive)
A-Z a single character in the range between A and Z (case sensitive)
如何检查包含字母数字和 - 如 (1-1k546) 的字符串的 @pattern 注释。
\d-[0-9a-zA-Z]+
\d match a digit [0-9]
- matches the character - literally
[0-9a-zA-Z]+ match a single character present in the list below
Quantifier: + Between one and unlimited times, as many times as possible, giving back as needed [greedy]
0-9 a single character in the range between 0 and 9
a-z a single character in the range between a and z (case sensitive)
A-Z a single character in the range between A and Z (case sensitive)