从 JSON 提取时，转义字符不起作用

Question

I am trying to build a very simple code SQL code formatter, which extracts the query from a JSON object and the goal is to copy the final output to the clipboard. 我还没有到剪贴板部分，因为我无法让 Python 解释转义字符。

print function 用转义字符和所有字符打印整个内容，我不知道为什么。

import json

main_query = {"text": "SELECT\n  * from test          where id = 1\n    LIMIT 10"}

query = str(json.dumps(main_query['text']).strip('"'))

print(query) # Not working
print('{}'.format(query)) # Not working either

"""
Output:

SELECT\n  * from test          where id = 1\n    LIMIT 10
SELECT\n  * from test          where id = 1\n    LIMIT 10
"""

Answer 1

了解为什么会发生这种情况也很重要。

当您对字符串执行json.dumps()时，您将获得字符串的表示形式。

例如，如果你执行print(repr(main_query["text])) ，你会得到这个 output：

SELECT \n  * from test          where id = 1 \n    LIMIT 10

但是，无需对具有换行符的字符串执行repr()或json.dumps并且您希望这些换行符被打印出来。

如果你只这样做：

import json

main_query = {"text": "SELECT \n  * from test          where id = 1 \n    LIMIT 10"}

query = main_query['text'].strip('"')

print(query)

你会得到你想要的字符串：

SELECT
  * from test          where id = 1
    LIMIT 10

Answer 2

试试这个：

main_query = {"text": "SELECT\n  * from test          where id = 1\n    LIMIT 10"}
print(main_query["text"])
SELECT
  * from test          where id = 1
    LIMIT 10

Answer 3

import json
import re
main_query = {"text": "SELECT\n  * from test          where id = 1\n    LIMIT 10"}
query = main_query['text']
print(re.sub('\n',' ',query))

Answer 4

使用这个伙伴，列表和循环打印实施

import json
main_query = {"text": "SELECT\n  * from test          where id = 1\n    LIMIT 10"}
query = str(json.dumps(main_query['text']).strip('"'))
for word in query.split('\\n'):
  print(word)