数字字母字符:[-\da-zA-Z=\\;',./~!@#$%^&*()_+|{}:<>?]*((\d+[a-zA-Z]+[-
=\;',./!@#$%^&*()_+|{}:<>?]+)|(\d+[-`=\;',./~!@#$%^&*()_+|{}:<>?]+[a-zA-Z]+)|([a-zA-Z]+\d+[-`=\;',./!@#$%&*()_+|{}:<>?]+)|([a-zA-Z]+[-`=\;',./~!@#$%^&*()_+|{}:<>?]+\d+)|([-`=\;',./~!@#$%&()_+|{}:<>?]+\d+[a-zA-Z]+)|([-=\\;',./~!@#$%^&*()_+|{}:<>?]+[a-zA-Z]+\d+))[-\da-zA-Z
=\;',./~!@#$%^&()_+|{}:<>?]*
纯数字:^\d+$
纯字母:[1]+$
纯特殊字符:[@#$%&]+$ ps:特殊字符看你定义的标准是什么
字母+数字:^(?!\d+$)(?![a-zA-Z]+$)[a-zA-Z\d]+$
字母+特殊字符:(?![a-zA-Z]+$)(?![@#$%&]+$)[a-zA-Z@#$%^&]+$
数字+特殊字符:(?!\d+)(?![@#$%&]+$)[\d@#$%^&]+$
字母+数字+特殊字符:(?!\d+$)(?![a-zA-Z]+$)(?![@#$%&]+$)[\da-zA-Z@#$%^&]+$
必须包含字母+字符+数字[-\da-zA-Z=\\;',./~!@#$%^&*()_+|{}:<>?]*((\d+[a-zA-Z]+[-
=\;',./!@#$%^&*()_+|{}:<>?]+)|(\d+[-`=\;',./~!@#$%^&*()_+|{}:<>?]+[a-zA-Z]+)|([a-zA-Z]+\d+[-`=\;',./!@#$%&*()_+|{}:<>?]+)|([a-zA-Z]+[-`=\;',./~!@#$%^&*()_+|{}:<>?]+\d+)|([-`=\;',./~!@#$%&()_+|{}:<>?]+\d+[a-zA-Z]+)|([-=\\;',./~!@#$%^&*()_+|{}:<>?]+[a-zA-Z]+\d+))[-\da-zA-Z
=\;',./~!@#$%^&()_+|{}:<>?]*
数字+字母+字符 或 字母+字符 或 数字+字母 或 数字+字符6-20((?!\d+$)(?![a-zA-Z]+$)[a-zA-Z\d@#$%&_+].{5,19})+$
(数字&&字母)|| 字符
(?!\d+$)(?![a-zA-Z]+$)(?![a-zA-Z-`=\;',./~!@#$%^&*()_+|{}:"<>?]+$)(?![0-9-`=\;',./~!@#$%&*()_+|{}:"<>?]+$)
a-zA-Z ↩︎