用python统计日志中IP的数量

191145685

[root@bogon ~]# cat 20160215.log　　
192.168.1.102 - - [15/Feb/2016:07:18:12 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:18:12 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:18:12 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:18:12 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:18:12 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.102 - - [15/Feb/2016:07:18:12 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:18:57 -0800] "GET /index.php HTTP/1.1" 200 40 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.103 - - [15/Feb/2016:07:34:08 -0800] "GET /index.php HTTP/1.1" 200 7237 "-" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:34:08 -0800] "GET /index.php?=PHPE9568F34-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2547 "http://192.168.1.106/index.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.101 - - [15/Feb/2016:07:34:08 -0800] "GET /index.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2169 "http://192.168.1.106/index.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.1.1015 - - [15/Feb/2016:07:34:08 -0800] "GET /index.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2169 "http://192.168.1.106/index.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
192.168.262.101 - - [15/Feb/2016:07:34:08 -0800] "GET /index.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2169 "http://192.168.1.106/index.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"
　　
111.168.1.101 - - [15/Feb/2016:07:34:08 -0800] "GET /index.php?=PHPE9568F35-D428-11d2-A769-00AA001ACF42 HTTP/1.1" 200 2169 "http://192.168.1.106/index.php" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36"