joomla中的此正则表达式是什么意思? [英] What does this regular expression in joomla mean?

问题描述

我正在尝试在我的网站上安装joomla.在安装joomla时，系统要求我创建一个MYSQl用户.但是我不能，因为每次我输入密码时，都会显示一条消息，说明密码不符合要求的表达要求.下面给出的是正则表达式

I was trying to install joomla on my website. While installing joomla, I was asked to create a MYSQl user. But I couldn't because, everytime I type as password, it gives a message saying the paswword doesn't meet the reqular expression requirement. Given below is the regular expression

'(?=^.{8,}$)((?=.*\d)|(?=.*\W+))(?![.\n])(?=.*[A-Z])(?=.*[a-z]).*$' 

这是什么意思?我可以输入什么密码?举例说明将通过此正则表达式测试的密码.请帮助我

What does this mean? What password can I give? Give an example of a password that will pass this regular expression test. Please help me

推荐答案

(?= ^.{8，} $)

(?=^.{8,}$)

这部分意味着还有8个字符，并且匹配从输入的开头开始.

This part means has 8 more more characters, and the match starts at the start of input.

(((?=.* \ d)

((?=.*\d)

均值包含一个数字.

|(?=.* \ W +))

|(?=.*\W+))

或者包含的东西既不是字母也不是数字

Or contains something that is neither a letter or a digit

(?！[.\ n])

(?![.\n])

不是以点或UNIX换行符开头.

not starting with a dot or UNIX newline.

(?=.* [A-Z])

(?=.*[A-Z])

至少包含一个大写字母.

Contains at least one capital letter.

(?=.* [a-z])

(?=.*[a-z])

包含至少一个小写字母

.* $

.*$

完全由非换行符组成，匹配的组将包含整个字符串.

Consists entirely of non-newline characters and the matched group will contain the entire string.

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