xx数组和yy数组开小了，一个点20问，要开到21，然后就过了
by syp11 @ 2024-03-04 01:47:00
@[aa2211034566](/user/1267057)
by syp11 @ 2024-03-04 01:49:41
@[syp11](/user/957501) 谢谢哥，我设的时候按n,m范围了嘿嘿
by aa2211034566 @ 2024-03-04 10:36:28