Games are things you play. Many children think that, right? But even the games you always play were thought up, assembled, ...

本篇文章围绕 7-check-if-out-range/task.md这个经典练习展开，讲解如何用 if 条件判断某个值（age）不在闭区间 [14, 90] 之内。你将 ...