contributed by < garrod1227 >(網路旁聽) 實驗環境 $ uname -a Linux AbcArchLinux 5.16.10-arch1-1 #1 SMP PREEMPT Wed, 16 Feb 2022 19:35:18 +0000 x86_64 GNU/Linux $ gcc --version gcc (GCC) 11.2.0 Copyright (C) 2021 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO