Python正則表達式測試

Python正則表達式測試：

1. import re
2. import sys
3. if len(sys.argv) < 3:
4. print("lack of argument\nusage: python reg.py passwd.txt")
5. sys.exit()
6. #keyword=re.compile(r'''travel+ed''')
7. keyword=re.compile(sys.argv[2])
8. aa=open(sys.argv[1],"r")
9. bb=aa.readlines()
10. #print(bb)
11. for line in bb:
12. #print(line)
13. data=re.findall(keyword,line)
14. #print("data:%s,length:%d,type:%s" %(data,len(data),type(data)))
15. if len(data)>0:
17. for i in range(0,len(data)):
18. if type(data[0])=="builtins.str":
19. print(data[i])
21. aa.close()