A loop is a circle, or a round path. If you tie the two ends together of a string, you get a "loop". A key point of a loop is that it has no beginning and end. In another word, loop is a path that its end is its beginning and its beginning is its end.
Loop是使循環,使成環,重複執行的意思。是抽象意義層面的圈。之所以說是抽象意義的圈,是因為loop強調的是無始無終,換句話說就是開始即是終點,終點也是開始。
接觸過計算機編程的人都聽說過while loop, for loop這樣的表達,之所以此處使用loop來代表循環,是因為while循環、for循環在滿足跳出語句(break)的條件時,當前的循環将停止執行。 如果不滿足跳出條件,代碼将一遍一遍的重複執行下去,也就真的變成了循環了。 程序在執行循環的過程中,是無法預料是執行多少遍代碼才能跳出循環結構的。也許一遍,也許兩遍,也許三遍,也許永遠循環下去。 無始無終的概念就是這樣诠釋的。
Examples:
She setup her cellphone to loop the music because she love it.
Write a while loop (computer programming term)
Imagine you are drawing a circle with your finger, you will complete a cycle when your finger move back at the point where you started your drawing. Cycle is kind of an activity to show something goes back its beginning.
設想你用手指畫圓圈,當你的手指回到了一開始起筆的那個點時,說明你完成了一個cycle。因此cycle強調的是有始有終,強調的是一個事物經過了不同的時期又回到了原來的初始狀态。
比如自然界液态水經過不同狀态的變化又重新變成了液态水的整個過程就是一個cycle。
Water cycle: water (snow, rain...) - vapor - cloud - water (snow, rain...)
Product Cycle 産品周期
Season Cycle 季節周期
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