hash command的意思|示意

Since this command expects an array, the original hash is unwound into an array in such a way that the values follow their respective keys in the array.

由于这个命令需要以一个数组作为参数，所以将原来的哈希表拆解为一个数组，拆解的方式是，在数组中，每个值跟在它的键的后面。

If the command completed successfully, you should see a hash background across both screens.

如果命令成功完成，应当看到一个跨越两个屏幕的背景。

It generates a hash table from the predetermined list of valid command-line options and a lookup function whose time complexity is o (1).

它将从预定的有效命令行选项列表和时间复杂度为O(1)的查找函数中生成一个散列表。