label标签系统里用到的正则表达式

syant

一、判断是整数或小数（没有负数）
^\d+(\.\d*)?$

二、内容至少4位以上
^.{4,}$

^.{15,15}$
^[\d]{2}$
^[\d]{1}$
^.{7,7}$
^.{3,3}$
^([0-9]{4}-[0-9]{2}-[0-9]{2})$
^[\d]{7}$
^.{2,2}$
^([0-9]{4}[0-9]{2})$

^-?\d+(\.\d+)?$
^(\d{2})(\d{2})(\d{2})$
^[a-zA-Z0-9]*$
^(\d{4})\.(\d{2})\.(\d{2})$
^(\d{4}).(\d{2}).(\d{2})$
^\d{10}$
^\d{3}$
^[A-Za-z0-9]{1,2}$
^[^\s]*$
^(\d{4})-(\d{2})-(\d{2})$
^(\d{4})(\d{2})(\d{2})$
^\d{4}\.\d{2}\.\d{2}$
^\d{4}\/\d{2}\/\d{2}$
^\d{8}$
^\d{6}$
^[0-9A-Za-z]{1,8}$
^\d{4}-\d{2}-\d{2}$
^(\-|\+)?\d+(\.\d+)?$
^[0-9]*$