var checkmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/;
var passw=/^[\x21-\x7E]{6,20}$/;//6~20个字符,可使用字母、数字、字符组合!
passw.test("123")//false
var phone = /^[+]{0,1}(\d){1,3}[ ]?([-]?((\d)|[ ]){1,12})+$/;
原文:https://www.cnblogs.com/xmyd/p/12721706.html