HashMap 的 Python 等价物
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Python equivalent for HashMap
提问by Wolf
I'm new to python. I have a directory which has many subfolders and files. So in these files I have to replace some specified set of strings to new strings. In java I have done this using HashMap. I have stored the old strings as keys and new strings as their corresponding values. I searched for the key in the hashMap and if I got a hit, I replaced with the corresponding value. Is there something similar to hashMap in Python or can you suggest how to go about this problem.
我是python的新手。我有一个包含许多子文件夹和文件的目录。所以在这些文件中，我必须将一些指定的字符串集替换为新字符串。在 Java 中，我使用HashMap. 我已将旧字符串存储为键，将新字符串存储为相应的值。我在 hashMap 中搜索键，如果命中，我将替换为相应的值。有没有类似于 Python 中的 hashMap 的东西，或者你能建议如何解决这个问题。
To give an example lets take the set of strings are Request, Response. I want to change them to MyRequest and MyResponse. My hashMap was
举个例子，让我们取一组字符串是请求，响应。我想将它们更改为 MyRequest 和 MyResponse。我的 hashMap 是
Key -- value
Request -- MyRequest
Response -- MyResponse
I need an equivalent to this.
我需要一个与此相当的。
采纳答案by Games Brainiac
You need a dict:
你需要一个dict：
my_dict = {'cheese': 'cake'}
Example code (from the docs):
示例代码（来自文档）：
>>> a = dict(one=1, two=2, three=3)
>>> b = {'one': 1, 'two': 2, 'three': 3}
>>> c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))
>>> d = dict([('two', 2), ('one', 1), ('three', 3)])
>>> e = dict({'three': 3, 'one': 1, 'two': 2})
>>> a == b == c == d == e
True
You can read more about dictionaries here.
您可以在此处阅读有关词典的更多信息。
