或的表达方式 if [ "$a" = 1 ] || [ "$a" = "2" ];then echo $a fi 且的表达方式 if [ "$a" = 1 ] && [ "$a" = "2" ];then echo $a fi 相关文章: 2022-02-09 2022-12-23 2021-10-29 2021-07-23 2021-11-10 2021-11-28