Blastoff Solution - Intro to Computer ScienceYouTube↗  IA↗(long shot)
Education  1.7K views 12 likes 1 dislikes   23 Feb 2015
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Per questo problema, ci è stato detto di definire una funzione chiamata "countdown"
在這個問題中，我們被告知要定義一個 稱為 countdown 的函數
"countdown" riceve un parametro, il numero dal quale fare partire il conto alla rovescia,
countdown 需要一個參數，一個數字，從它開始往下數
chiamiamolo "n". Non dimenticate i due punti.
讓我們稱它為 n ，不要忘記冒號
Lo scopo qui è di contare alla rovescia da "n" in giù fino a "blastoff"
目標是從 n 一路倒數，然後升空
Sembra proprio che ci serva un ciclo while
這聽起來像是需要 while loop
Iniziamo. Lasciamo in bianco la condizione, per ora-
讓我們開始吧，先把條件留白
poichè già sappiamo che quello che ci serve fare all'interno del ciclo,
因為我們已經知道在 while loop 中要做的事
vale a dire, stampare il numero.
就是印出數字
Sappiamo anche che, alla fine, dobbiamo scrivere "blastoff"
我們也知道，到了最後要升空
Quindi dobbiamo riempire due cose
因此，我們有兩件事情要寫入
Una, per quanto tempo contiamo alla rovescia?
第一是，我們要倒數多久
Ed infine, cosa fare dopo ogni conteggio?
最後，在每次計數後該做什麼
Se guardiamo l'esempio, l'ultima volta che contiamo è quando "n"=1
如果我們看一下例子，當 n = 1 時我們數最後一次
Quindi, un modo per fare questo è dicendo che fintanto che "n" è maggiore di zero.
所以，一種方法是寫 while n > 0
Ogni volta che contiamo alla rovescia, sottraiamo 1 da "n"-- quindi facciamolo--
每次我們倒數時，我們從 n 減去 1 ，讓我們這麼做
e nell'insieme, questo produrrà il risultato come ci si attende
這將產生預期的結果
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