如何在多个打印命令之间随机选择？

Question

如何在多个打印命令之间随机选择？

比如……

我想随机选择这两个打印功能之一...

print ('The ball ', (random.choice (action_ball))
print ('The cat', (random.choice (action_cat))

然后参考这两个列表...

action_ball = ['rolled','bounced']
action_cat = ['purred','meowed']

随机生成这四个句子之一...

the ball rolled
the ball bounced
the cat purred
the cat meowed

我了解如何从一个列表中生成：

import random
action_ball = ['rolled','bounced']
print ('The ball ', (random.choice (action_ball))

在那之后，我迷路了。

Answer 1

您可以预先生成所有四个句子，然后只需选择其中一个：

from random import choice
src = [('The ball',('rolled','bounced')),('The cat',('purred','meowed'))]
all = [sentence[0] + ' ' + word for sentence in src for word in sentence[1]]

for _ in range(5):   # arbitrary number of repetitions
    print(choice(all))

Answer 2

from random import randint, choice

ball_choices = ['rolled', 'bounced']
cat_choices = ['purred', 'meowed']

if randint(0, 1):
    print ('The ball ', choice(ball_choices))
else:
    print ('The cat', choice(cat_choices))

这会随机生成一个 0 或 1，如果为 1，则打印随机选择的球字符串，如果为 0，则打印随机选择的猫字符串。这有意义吗？

编辑：如果您想添加更多选项，您可以随时更改randint() 的范围，并为每个选项设置条件，但这可以很容易地概括（节省大量打字），就像这样:

options = {
    'ball': ['rolled', 'bounced'],
    'cat': ['purred', 'meowed'],
    'tv': ['turned on', 'turned off', 'exploded'],
    # Add more here...
}

# Pick a random item from the keys of options
random_item = choice(list(options))

# Print the item and choose randomly from that option's choices
print('The', random_item, choice(options[random_item]))

现在，只需向options 添加更多条目即可添加其他选择和选项。