Python从txt内查找关键字

Question

用python从很大的文本中查找关键字，并且将相近关键字‘[1]’和 ‘sd 1’合成在一个文本内输出(需要输出多个)，然后对输出文本进行再处理

Answer 1

你题目的解答代码如下：（如有帮助，望采纳！谢谢! 点击我这个回答右上方的【采纳】按钮）

import re
path = r"E:/xxx/"
dic = {}
lis = []
with open(rf'{path}大文件.txt', 'r', encoding='utf-8') as fileObj:
    print(rf'{path}大文件.txt')
    for line in fileObj:
        print(line,end="")
        g = re.search(r'\[(\d+)\]|\bsd (\d+)\b',line)
        if g:
            j = g.group(1) if g.group(1)!=None else g.group(2)
            dic.setdefault(j,[]).append(line)
        g = re.search(r'compare|time to read',line)
        if g:
            lis.append(line)

for k,v in dic.items():
    with open(rf'{path}txt{k}.txt', 'w', encoding='utf-8') as fileObj:
        fileObj.writelines(v)
    print(rf'{path}txt{k}.txt')
    print(*v,sep="")

with open(rf'{path}txt.txt', 'w', encoding='utf-8') as fileObj:
    fileObj.writelines(lis)
print(rf'{path}txt.txt')
print(*lis,sep="")