如何构建一个正则表达式来匹配包含任意字符但必须包含 21 个逗号的任意长度的字符串?
/^([^,]*,){21}[^,]*$/
That is:
^ Start of string
( Start of group
[^,]* Any character except comma, zero or more times
, A comma
){21} End and repeat the group 21 times
[^,]* Any character except comma, zero or more times again
$ End of string
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)