This Regex has been tested against : 23px 3.32423423cm .87687533mm 34223423em...

Matches strings in the ISO_8601 format. Named capture groups for year, month, date, hours, minutes, seconds, ms and timezone offset.

Matches: 1.0 .01 1e-10 1.0e3 0.2e10

(\d?\d?\d{1}\d{1})|(^[5-9])

Detects PO Box matches in address fields. Used to validate if address looks like a PO Box or not. This is needed for validation logic when businesses are not allowed to ship to PO Boxes.

11位正整数，两位小数

found in https://stackoverflow.com/a/14720951/10715454 check string for absolute url (with domain and such) true example.com...

Purpose List of Instapage URLs for testing against Todo Add www urls