RegExp.$1

https://blog.csdn.net/qq_42423964/article/details/102385983

1.身份证验证

https://51dev.com/wxxcx/22476

2.身份证提取日期、性别

https://www.sucainiu.com/code/1292.html

3.日期验证

https://www.cnblogs.com/dragonir/archive/2017/09/07/7492411.html

4.手机号验证

简
https://blog.csdn.net/weixin_42125933/article/details/105639275
难
https://blog.csdn.net/weixin_44234912/article/details/88826805
https://blog.csdn.net/qq_40259123/article/details/106358655

5.邮箱验证

https://www.cnblogs.com/zhanglw456/p/13530373.html

6.输入验证

https://blog.csdn.net/weixin_42580704/article/details/109488544
https://www.cnblogs.com/kdcg/p/13408523.html