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Count down in twos · ⁨每次减二倒数⁩

English

Count down in twos

n starts at 10. Print 10, 8, 6, 4, 2 using a while loop.

The step does not have to be 1. Check where it stops: from 10 taking 2 each time, the value after 2 is 0, and 0 > 0 is false — so 0 is never printed.

中文

每次减二倒数

n 从 10 开始。用 while 循环打印 10、8、6、4、2。

步长不一定是 1。注意它在哪里停:从 10 每次减 2,2 之后是 0,而 0 > 0 不成立 —— 所以 0 不会被打印。

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