Find centralized, trusted content and collaborate around the technologies you use most.
Teams
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
谁能弄清楚如何解决这个问题?需要一些帮助..
0|4|8|(0|1|2|3|4|5|6|7|8|9)*((0|2|4|8)(0|4|8)|(1|3|5|7)(2|6))