如何获取匹配格式的正则表达式？

Question

I need to find out regular expression for the below. It always starts with two characters MP, then there will be two random characters and then a number of any length. Is there any tool I can use to generate a regular expression by providing some examples? Thank you!

Examples:
MPAA1234
MPXD876323
MPJH349

Answer 1

You could use an online regex tester to check your formula interactively :

For exemple :

regex101.com

Hope it helps.