正则表达

 ^(?![0-9]+$)(?![a-zA-Z]+$)(?!([^(0-9a-zA-Z)]|[()])+$)([^(0-9a-zA-Z)]|[()]|[a-zA-Z]|[0-9]){6,}$ 
原文地址:https://www.cnblogs.com/ylldbk/p/5749158.html