perform select in background 实际上开了个线程,所以要加上autoreleasepool管理 不然会出现,autoreleased with no pool in place just leaking 的错误. 相关文章: 2022-02-21 2021-08-27 2021-11-04 2022-12-23 2021-05-27 2022-12-23 2021-07-14 2022-12-23