數(shù)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`=\\

;',./~!@#$%^&*()_+|{}:<>?]*

純數(shù)字：^\d+$

純字母：^[a-zA-Z]+$

純特殊字符：^[@#$%^&]+$? ps:特殊字符看你定義的標(biāo)準(zhǔn)是什么

字母+數(shù)字：^(?!\d+$)(?![a-zA-Z]+$)[a-zA-Z\d]+$

字母+特殊字符：^(?![a-zA-Z]+$)(?![@#$%^&]+$)[a-zA-Z@#$%^&]+$

數(shù)字+特殊字符：^(?!\d+)(?![@#$%^&]+$)[\d@#$%^&]+$

字母+數(shù)字+特殊字符：^(?!\d+$)(?![a-zA-Z]+$)(?![@#$%^&]+$)[\da-zA-Z@#$%^&]+$

必須包含字母+字符+數(shù)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`=\\

;',./~!@#$%^&*()_+|{}:<>?]*

數(shù)字+字母+字符 或 字母+字符 或 數(shù)字+字母 或 數(shù)字+字符6-20^((?!\d+$)(?![a-zA-Z]+$)[a-zA-Z\d@#$%^&_+].{5,19})+$

（數(shù)字&&字母）|| 字符

^(?!\d+$)(?![a-zA-Z]+$)(?![a-zA-Z-`=\\

;',./~!@#$%^&*()_+|{}:"<>?]+$)(?![0-9-`=\\

;',./~!@#$%^&*()_+|{}:"<>?]+$)

轉(zhuǎn)：http://www.ibcibc.com/thread-3823-1-1.html