我想刪除可能與 python 中的特定點不同的文本部分前任：lksalksapointdlksla刪除“point”pointdlksla之前的所有內容kljkghglpointsdfasfsd刪除“point”pointsdfasfsd之前的所有內容這可能嗎？
3 回答
陪伴而非守候
TA貢獻1757條經驗 獲得超8個贊
您可以使用正則表達式：
import re
regex = r"(?P<before>.*)(point)(?P<after>.*)"
test_str = "lksalksapointdlksla"
matches = re.finditer(regex, test_str, re.MULTILINE)
for matchNum, match in enumerate(matches, start=1):
print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group()))
for groupNum in range(0, len(match.groups())):
groupNum = groupNum + 1
print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum)))
然后，您可以使用before和after組來執行您喜歡的操作。
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