摘要： java //包含大写字母、小写字母、特殊符号、数字中的任意三项 String pw_pattern = "^(?![A-Za-z]+$)(?![A-Z0-9]+$)(?![a-z0-9]+$)(?![a-z\\W]+$)(?![A-Z\\W]+$)(?![0-9\\W]+$)[a-zA-Z0-9\ 阅读全文