难以理解 JSON 转义字符
我对编程很陌生，最近深入研究了Python 中的 JSON 转义和特殊字符主题。我知道如何转义双引号。例如：
导入 json
data = json.loads('{"Test": "In \\"quotation\\" 标记"}')
print( data)
returns(as a "dict"): {'Test': 'In "quotation" matches'}
但我无法理解其他特殊字符的含义使用方式如下：\b、\n、\、 \f 等...
有人可以向我展示一些代码示例，这些其他特殊转义字符将在何处以及如何使用，例如上面的 json.loads 函数。我将非常感激。谢谢
I'm quite new to programming and recently have dived into the topic of JSON Escape and special characters in Python. I understand how to escape double quotation marks. For example:
import json
data = json.loads('{"Test": "In \\"quotation\\" marks"}')
print(data)
returns(as a "dict"): {'Test': 'In "quotation" marks'}
But I can't wrap my head around how the other special characters would be used like: \b, \n, \, \f etc...
Could someone please show me some examples of code where and how those other special escape characters would be used in, say for example, a json.loads functions like above. I'd be very grateful. Thanks
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JSON 字符串必须用双引号引起来；因此，您需要转义双引号才能将其包含在 JSON 字符串中。
但是，您还需要转义 Python 字符串文字中的反斜杠，以便在 JSON 值中获取文字反斜杠。您可以按照问题中所示的方式执行此操作：
或者使用原始字符串文字
部分混淆来自于 JSON 字符串值和 Python 字符串文字可能看起来相同这一事实。例如，由换行符组成的 JSON 字符串看起来像
定义由换行符组成的字符串的 Python 字符串文字也看起来像
定义包含 JSON 字符串的字符串的 Python 字符串文字由换行符组成的则可以是
或者
JSON strings must be double quoted; as such, you need to escape a double quote in order to include it in a JSON string.
However, you also need to escape the backslash in the Python string literal in order to get a literal backslash in the JSON value. You can do that as you show in your question:
or by using a raw string literal
Part of the confusion comes from the fact that JSON string values and Python string literals can look identical. For example, a JSON string that consists of a linefeed would look like
and a Python string literal defining a string that consists of a linefeed would also look like
A Python string literal defining a string that contains a JSON string consisting of a line feed would then be either
or
没关系。我想通了。我的问题是，当我执行
data = json.loads('{"Test": "In quote \\nmarks"}')
print(data)
时会返回： {'Test': 'In quote \n matches '} 我试图理解为什么它显示 \n 而不是实际的新行
我意识到转义仅在您查看时才会显示对于给定键的值。例如，
print(data["Test"]) 返回
In quote
marks
与 data = json.loads( '{"Test": "In "quotation" \\bmarks"}')
返回 = 在引号中
Nevermind. I figured it out. My problem was that when I was doing
data = json.loads('{"Test": "In quotation \\n marks"}')
print(data)
it would return: {'Test': 'In quotation \n marks '} and I was trying to understand why it shows \n instead of an actual new line
I realized the escapes only show up when you look for value of a given key. So for example,
print(data["Test"]) returned
In quotation
marks
same thing for data = json.loads('{"Test": "In "quotation" \\bmarks"}')
returns = In quotationmarks