With the subroutines in place, the main program logic allows the user to create a knock sequence, or runs in daemon mode to listen for knocks and execute commands.
利用这些子程序，主程序的逻辑允许用户创建敲打序列，或在守护模式下监听敲打序列并执行命令。
2
The first comparison is between the number of knocks, as there is no point comparing a seven-knock sequence to a two-knock sequence.
第一个要比较的是敲打的次数，因为我们没有必要将一个七次敲打的序列与一个两次敲打的序列进行比较。
3
These coronal mass ejections, as they're called, hit our atmosphere and can knock out power grids, cooking their transformers, which in turn knocks out our plasma screens and fries our chips.