擅长:python、mysql、java
<p>首先初始化你的敌人汽车图像列表,从中选择一个。在</p>
<p><code>randomCars = [carImg1, carImg2, carImg3, carImg4]</code></p>
<p>在game\u loop()函数内,但在主循环集<code>enemy = random.choice(randomCars)</code>之外</p>
<p>在game\u loop()函数的主循环中,检查敌人是否离开屏幕。如果是,将敌方变量设置为一辆新的随机汽车。在</p>
<pre><code>if thing_starty > display_height:
# Reset enemy image
enemy = random.choice(randomCars)
# Reset thing co-ordinates
thing_starty = -600
thing_startx = random.randrange(0, display_width)
</code></pre>
<p>如果<code>enemy = random.choice(randomCars)</code>行代码不起作用,您也可以尝试用一个随机整数索引<code>randomCars</code>列表。在</p>
<p><code>randomCarsIndex = random.randint(0, len(randomCars) - 1)
enemy = randomCars[randomCarsIndex]</code></p>
<p>希望这有帮助!在</p>