python - 将另一个元组添加到元组的元组中

Question

我有以下元组:

my_choices=(
         ('1','first choice'),
         ('2','second choice'),
         ('3','third choice')
)

我想在它的开头添加另一个元组

another_choice = ('0', 'zero choice')

我该怎么做？

结果是:

final_choices=(
             ('0', 'zero choice')
             ('1','first choice'),
             ('2','second choice'),
             ('3','third choice')
    )

Answer 1

从 another_choice 构建另一个元组，然后连接:

final_choices = (another_choice,) + my_choices

或者，考虑通过使用方括号而不是括号使 my_choices 成为元组列表而不是元组:

my_choices=[
     ('1','first choice'),
     ('2','second choice'),
     ('3','third choice')
]

那么你可以这样做:

my_choices.insert(0, another_choice)