常用正则

密码

包含大写字母，小写字母和数字并长度在6-20

const res = /^(?=.*[0-9].*)(?=.*[A-Z].*)(?=.*[a-z].*).{6,20}$/

密码必须包含大小写字母/数字/符号任意两者组合

const res = /^(?![0-9]+$)(?![a-z]+$)(?![A-Z]+$)(?!([^(0-9a-zA-Z)]|[\(\)])+$)([^(0-9a-zA-Z)]|[\(\)]|[a-z]|[A-Z]|[0-9])/