List Python字典类型

我正试图弄明白为什么会出现这种类型的错误。可以把整数放在字典里吗

math_questions = [
    {'question1':'1*1',
    'answer1':1,
    'quote1' :'What you are,you are by accident of birth; what I am,I am by myself.\n There are and will be a thousand princes; there is only one Beethoven.'},
    {'question2':'2*1',
    'answer2':2,
    'quote2': 'Two is company, three is a crowd'},
    {'question3': '3*1',
    'answer3': 3,
    'quote3': 'There are three types of people, those who can count and those who cannot'}
    ]

# read from a txt file later???

print math_questions[0]['question1']

math_answer = int(raw_input("What is the answer to " + math_questions["question1"] +"? : "))

if math_answer == math_questions['answer1']:
    print math_questions['quote']
else:
    print "Try again"
print math_questions['answer1'] 

这是我收到的错误消息

PS C:\python27\math_game> python math_game.py
1*1
Traceback (most recent call last):
  File "math_game.py", line 17, in <module>
    math_answer = int(raw_input("What is the answer to " + math_questions["question1"] +"? : "))
TypeError: list indices must be integers, not str
PS C:\python27\math_game>

PS C:\python27\math\u game>python math\u game.py
1*1
回溯（最近一次呼叫最后一次）：
文件“math_game.py”，第17行，在
math_answer=int（原始输入（“什么是“+数学问题[“问题1”]+”？：”）的答案）
TypeError:列表索引必须是整数，而不是str
PS C:\python27\math\u game>

---

提前感谢您的帮助。

当您访问列表时，您需要索引。看起来您正在尝试访问一个

dict

。相反，把：

math_answer = int(raw_input("What is the answer to " + math_questions[0]["question1"] +"? : "))

您有一些错误：

您在第17、19、20、23行有

数学问题[“问题1”]

你的

数学问题[“quote”]

根本不存在（我改为

数学问题[“quote1”]

）

在这里，我们尝试通过您使用的方式访问

dict

s列表。但是，我们需要将其剥离到只有

dict

，然后才能以这种方式访问它

>>> obj = [{'data1': 68,
... 'data2': 34,
... 'data3': 79}]
>>> obj['data2']
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: list indices must be integers, not str
>>> obj[0]['data2']
34
>>> 

---

您应该修改数据结构，如下所示：

class MathQuestion:
  def __init__(self, question, answer, quote):
    self.question = question
    self.answer = answer
    self.quote = quote

math_questions = [
  MathQuestion(question='1*1', answer='1', quote='What you are …'),
  MathQuestion(question='2*1', answer='2', quote='Two is company …'),
  #…
]

这允许您按如下方式处理字符串：

math_questions[0].answer

math_questions[0].answer