我有一個文本文件，我想解析并將問題和選項放入問題和選項列表中示例文本：[更新示例文本以包括問題類型和選項中的所有變化類型]- 26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ; IMA. observeB. HBV DNA study\C. InterferonD. take liver biopsy- Trauma è skin erythema and Partiel skin loss ,ttt: surgeryA. H2o irrigationB. Bicarb. IrrigationC. Surgical debridment\- Old female, obese on diet control ,polydipsia , invest. Hba1c 7.5 ,all (random,Fasting, post prandial ) sugar are mild elevated urine ketone (+) ttt: IMA. Insulin “ ketonuria “\B. pioglitazoneC. ThiazolidinedionesD. fourth i forgot (not Metformin nor sulfonylurea)- Day to day variation of this not suitable for patients under warfarin therapy: IMA. retinolsB. Fresh fruits and vegitablesC. Meet and paultry\D. Old cheese我是 python 的新手，尤其是正則表達式的新手。試圖找到將找到以“-”開頭的句子以及新行有“A”的正則表達式。, 在 'A.' 之前將其切片 并將問題放入列表中。注意：有些問題有兩行長。也是一個正則表達式，用于將每組選項提取到列表中。所以最終結果將是：question list = ['- 26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ; IM','- Old female, obese on diet control ,polydipsia , invest. Hba1c 7.5 ,all (random,Fasting, post prandial ) sugar are mild elevated urine ketone (+) ttt:IM ','etc','and so on']options list = [['A. observe','B. HBV DNA study\','C. Interferon','D. take liver biopsy'],['A. H2o irrigation\','B. Bicarb. Irrigation','C. Surgical debridment',[['A. Something Else','B. Something Else',......,'D. ']],[etc]]我猜這會有點復雜，但是對正則表達式部分的任何幫助甚至是開始都會很棒。我有一個包含 1000 個這樣的問題和選項的文本文件，理想情況下我想提取所有問題和選項。import rewith open("julysmalltext.txt") as file: content = file.read() question_list = re.findall(r'', content) options_list = re.findall(r'', content)
3 回答
MMMHUHU
TA貢獻1834條經驗 獲得超8個贊
這將做到：
import re
with open("data.txt") as fp:
question_list = list()
options_list = list()
for line in fp.readlines():
question = re.match(r'-.*', line)
if question:
question_list.append(question.group(0))
else:
answer = re.match(r'[ABCD]\..*', line)
if answer.group(0)[0]=='A':
options_list.append([answer.group(0)])
else:
options_list[-1].append(answer.group(0))
print(question_list)
print(options_list)
輸出：
['- 26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ;IM', '- Trauma è skin erythema and Partiel skin loss ,ttt: surgery']
[['A. observe', 'B. HBV DNA study', 'C. Interferon', 'D. take liver biopsy'], ['A. H2o irrigation', 'B. Bicarb. Irrigation', 'C. Surgical debridment']]
另一種選擇，如果您不需要嵌套問題列表：
import re
with open("data.txt") as file:
content = file.read()
question_list = re.findall(r'-.*', content)
options_list = re.findall(r'[ABCD]\..*', content)
print(question_list)
print(options_list)
輸出：
['- 26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ;IM', '- Trauma è skin erythema and Partiel skin loss ,ttt: surgery']
['A. observe', 'B. HBV DNA study', 'C. Interferon', 'D. take liver biopsy', 'A. H2o irrigation', 'B. Bicarb. Irrigation', 'C. Surgical debridment']
斯蒂芬大帝
TA貢獻1827條經驗 獲得超8個贊
試試這個例子。
import json
text = '''
- 26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ;IM
A. observe
B. HBV DNA study
C. Interferon
D. take liver biopsy
- Trauma è skin erythema and Partiel skin loss ,ttt: surgery
A. H2o irrigation\
B. Bicarb. Irrigation
C. Surgical debridment
'''
questions = {}
letters = ['A','B','C','D','E',]
text = text.split('\n')
text[:] = [x for x in text if x]
question = ''
for line in text:
if line[0] == '-':
question = line[2:]
questions[question] = {}
elif line[0] in letters:
line = line.split('.',1)
for i in range(len(line)):
line[i] = line[i].strip()
questions[question][line[0]] = line[1]
print(json.dumps(questions,indent=2, ensure_ascii=False))
輸出將非常有條理：
{
"26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ;IM": {
"A": "observe",
"B": "HBV DNA study",
"C": "Interferon",
"D": "take liver biopsy"
},
"Trauma è skin erythema and Partiel skin loss ,ttt: surgery": {
"A": "H2o irrigationB. Bicarb. Irrigation",
"C": "Surgical debridment"
}
}
HUWWW
TA貢獻1874條經驗 獲得超12個贊
簡單的：
import re
with open("julysmalltext.txt") as file:
content = file.read()
questions = re.findall('-.*?(?=\nA)', content)
options = re.findall('\w\..*?(?=\n)', content)
print(questions)
print(options)
輸出：
['- 26 yrs Man Hbsag +ve ,hbeag +ve on routine screening ..what is next ;IM', '- Trauma è skin erythema and Partiel skin loss ,ttt: surgery']
['A. observe', 'B. HBV DNA study', 'C. Interferon', 'D. take liver biopsy', 'A. H2o irrigation\\', 'B. Bicarb. Irrigation']
打破它：
This part:'-'表示字符串必須以'-'
This part:'.*?'表示提取中間的所有內容，但不貪心。
這部分：'(?=\nA)'表示'A'字符串前面必須有一個換行符和一個右邊。
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