没事儿，来编个程可好？python里复制对象，极易弄错，且不容易理解的地方，下面代码输出是什么，看你会出错不

aliens = []
alien_0 = {'color': 'red', 'points': 5, 'speed': 'slow'}
for number in range(30):
    aliens.append(alien_0)
for i in aliens[:3]:
    if i['color'] == 'red':
        i['color'] = 'green'
        i['points'] = '10'
        i['speed'] = 'medium'
for alien in aliens[:5]:
    print(alien)
print(f'the totla number of alien is {len(aliens)}')