我们的这个太空游戏的主要目标是杀掉外星人并积分，所以我们需要一个过程来更改分数。
The main goal of our groovy space game is to kill aliens and accumulate points, so we'll need a procedure to alter the score.
为了便于解释，本文全篇都将使用一个示例太空游戏程序，称为KillBadAliens。
For illustration purposes, our example program throughout this article is a hypothetical computer game called Kill Bad Aliens. In it, you will control a spaceship.
然而事实上，那一刻到来后，我们只是亲密的呆在家里，玩外太空游戏扑克，随后我为“面包与玫瑰咖啡厅”开出了一张支票。
Instead, we stayed close to home and played outer-space poker, and I wrote out a check for Bread and Roses.
没有音乐可以听，也不能玩游戏来打发时间。说实话，这趟太空游听起来真的很不值。
No music to float about to, and no gaming to pass the time, it sounds rather like the whole trip wasn't really worth it to be honest.
没有音乐可以听，也不能玩游戏来打发时间。说实话，这趟太空游听起来真的很不值。
With no music to float about to, and no gaming to pass the time, it sounds rather like the whole trip wasn't really worth it to be honest.
没有音乐可以听，也不能玩游戏来打发时间。说实话，这趟太空游听起来真的很不值。
With no music to float about to, and no gaming to pass the time, it sounds rather like the whole trip wasn't really worth it to be honest.
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