python正则表达式

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最新推荐文章于 2025-05-07 13:20:02 发布

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Python 正则表达式字符串处理匹配替换

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import re

from demo.config.Constants import Context

str = "12Esd4qwd3456789try5@#$"


# parrent= r"\w"
# res = re.findall(parrent, str)
# print(res)

# parrent= r"\d"
# res = re.findall(parrent, str)
# print(res)

# parrent= "."
# res = re.findall(parrent, str)
# print(res)

# parrent= r"\d*?"
# res = re.findall(parrent, str)
# print(res)

结果：

s = "abc123000"

#匹配一个字符串中符合规则的数据
def find_data(data: str, lb: str, rb: str) -> list:
    rule = lb+r"(.*?)"+rb
    data_list = re.findall(rule, str)
    return data_list


a = find_data(s, "abc", "000")
print(a)#打印出a为123

#使用Context类中的变量替换excel中#balabala#
def repalce_values(targe):
    re_parrent = "#(.*?)#"
    while re.findall(re_parrent, targe):
        #如果匹配
        key = re.search(re_parrent, targe).group(1)
        targe = re.sub(re_parrent, str(getattr(Context, key)), targe, 1)
    return targe