import re
import time
import sys
#先打开1.txt文件,读取文本内容,然后创建一个匹配函数并调用(获取文本的address)
#终端输入python3 本文件名.py 匹配内容(例:BATA100)
#匹配具体内容
def reg(data,port):
pattern = r'^\S+'
re_obj = re.compile(pattern)
try:
head_word = re_obj.match(data).group()
except Exception:
return None
if port == head_word:
pattern = r'address is (\w{4}\.\w{4}\.\w{4})'
try:
match_obj = re.search(pattern,data)
return match_obj.group(1)
except Exception:
return None
else:
return None
def main(port):
fd = open('1.txt','r')
fd.readline()
fd.readline()
while True:
data = ''
while True:
s = fd.readline()
if s == '\n':
break
if s == '':
print("search over")
return
data += s
# 将每段数据传入函数进行匹配
result = reg(data,port)
if result:
print("address is :",result)
return
if __name__ == "__main__":
if len(sys.argv) < 2:
print("argv error")
sys.exit(1)
main(sys.argv[1])
正则表达式匹配案例
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转载自www.cnblogs.com/-hjj/p/9939428.html
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