1. 文件總大小 69.8Mhtml
2. 文件內容格式以下: 測試
66.249.69.131 - - [10/Aug/2016:03:20:09 +0800] "GET /robots.txt HTTP/1.1" 404 162 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"
3. 生成以下格式:google
[('66.249.69.131', '10/Aug/2016:03:20:09 +0800', 'GET /robots.txt HTTP/1.1', '404', '162', 'Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)')]
4. 正則:spa
matcher = re.compile(r'(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) - - \[(.*)\] "(.*)" (\d+) (\d+) ".*" "(.*)"')
5.代碼:code
import re import datetime # matcher = re.compile(r'(?P<remote>\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) - - \[(?P<time>.*)\] "(?P<request>.*)" (?P<status>\d+) (?P<length>\d+) ".*" "(?P<ua>.*)"') matcher = re.compile(r'(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}) - - \[(.*)\] "(.*)" (\d+) (\d+) ".*" "(.*)"') fb = open('111','w+') def filenum(fb): start = datetime.datetime.now() with open('access.log') as f: for fobj in f: # fb.write(str(re.findall(matcher,fobj)) + '\n') # fb.writelines(str(re.findall(matcher,fobj)) + '\n') print(str(re.findall(matcher,fobj)),file=fb) end = datetime.datetime.now() return (end-start).total_seconds() public_time = filenum(fb) fb.close() print(public_time)
6. 測試結果(3 次測試結果):
a) . write : 平均用時 4.9s b) . writelines : 只測試了一次,用時41s 果斷放棄 c) . print : 平均用時 5.22s
7. 總結: htm
從上面數據來講 write 優點要大於 print 和writelines。
上面只是我的臨時測試結果,並不能表明通用性。 若是問題歡迎指出blog