以下约束的正则表达式是什么？
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我想要一个密码字符串的正则表达式，该字符串至少包含以下四种字符中的三种：
英文小写字母（a到z）。
英语大写字符（A到Z）。
以10为基数（0到9）。
非字母数字字符（例如，！，$，＃，％）。
并且应至少包含8个字符。
没有找到相关结果
已邀请:
5 个回复
惜堡沁戚
def check_password (s): if len(s) < 8: return false rules_followed = 0 if match (s, \"[a-z]\") rules_followed++; if match (s, \"[A-Z]\") rules_followed++; if match (s, \"[0-9]\") rules_followed++; if match (s, \"[!$#%]\") rules_followed++; # et cetera if rules_followed < 3: return false return true分隔的十六种排序可能性的单个正则表达式。 这些都不像简单的代码段那样高效或可读。驮帽俺篮号
/^(?: (?=.*[a-z]) # look ahead: at least one from a-z (?=.*[A-Z]) # look ahead: at least one from A-Z (?=.*[0-9]) # look ahead: at least one from 0-9 | # or... (?=.*[a-z]) # look ahead: at least one from a-z (?=.*[A-Z]) # look ahead: at least one from A-Z (?=.*[^a-zA-Z0-9]) # look ahead: at least one from special chars | # or... (?=.*[a-z]) # look ahead: at least one from a-z (?=.*[0-9]) # look ahead: at least one from 0-9 (?=.*[^a-zA-Z0-9]) # look ahead: at least one from special chars | # or... (?=.*[A-Z]) # look ahead: at least one from A-Z (?=.*[0-9]) # look ahead: at least one from 0-9 (?=.*[^a-zA-Z0-9]) # look ahead: at least one from special chars ) \\S{8,} # at least 8 non-spaces $/x箩冀娥
public bool Validate(string input) { if (input == null || input.Length < 8) return false; int counter = 0; if (input.Any(Char.IsLower)) counter++; if (input.Any(Char.IsUpper)) counter++; if (input.Any(Char.IsDigit)) counter++; if (input.Any(c => Char.IsPunctuation(c) || Char.IsSymbol(c))) counter++; return counter >= 3; }^ (?=.*[a-z](?<Counter>))? (?=.*[A-Z](?<Counter>))? (?=.*[0-9](?<Counter>))? (?=.*[^a-zA-Z0-9](?<Counter>))? (?<-Counter>){3} # check we\'ve had at least 3 groups .{8}^ (?=.*\\p{Ll}(?<Counter>))? (?=.*\\p{Lu}(?<Counter>))? (?=.*\\p{Nd}(?<Counter>))? (?=.*[\\p{S}\\p{P}](?<Counter>))? (?<-Counter>){3} .{8}公藕
^(?:(?=.*[A-Z])(?=.*[a-z])(?=.*\\d)|(?=.*[A-Z])(?=.*[a-z])(?=.*[_\\W])|(?=.*[A-Z])(?=.*\\d)(?=.*[_\\W])|(?=.*[a-z])(?=.*\\d)(?=.*[_\\W])).{8}^(?:(?=.*[A-Z])(?:(?=.*[a-z])(?:(?=.*\\d)|(?=.*[_\\W]))|(?=.*\\d)(?=.*[_\\W]))|(?=.*[a-z])(?=.*\\d)(?=.*[_\\W])).{8}貉骂