Python学习笔记--处理log文件的简单小程序

来源：互联网发布：仓库管理系统java 编辑：程序博客网时间：2024/05/22 12:46

有如下log文件，请打印出独立IP，并统计独立IP数，
   log文件内容:
   218.79.251.215 - - [23/May/2006:08:57:44 +0800] "GET /fg172.exe HTTP/1.1" 206 2350253
   220.178.150.3 - - [23/May/2006:08:57:40 +0800] "GET /fg172.exe HTTP/1.1" 200 2350253
   59.42.2.185 - - [23/May/2006:08:57:52 +0800] "GET /fg172.exe HTTP/1.1" 200 2350253
   219.140.190.130 - - [23/May/2006:08:57:59 +0800] "GET /fg172.exe HTTP/1.1" 200 2350253
   221.228.143.52 - - [23/May/2006:08:58:08 +0800] "GET /fg172.exe HTTP/1.1" 206 719996
   221.228.143.52 - - [23/May/2006:08:58:08 +0800] "GET /fg172.exe HTTP/1.1" 206 713242

221.228.143.52 - - [23/May/2006:08:58:09 +0800] "GET /fg172.exe HTTP/1.1" 206 1200250

log文件名为log.txt

#!/usr/bin/pythonfd = open("log.txt")ipDict = {}for line in fd:    for i in range( len(line) ):        if line[i] == ' ':    flag = i    breakif ipDict.has_key( line[:flag] ) == False:    ipDict[ line[:flag] ] = 1else:    ipDict[ line[:flag] ] += 1ipNum = 0print "%-15s%s" % ("IP", "Number")for key in ipDict.keys():    print "%-15s%3d" % ( key, ipDict[ key ] )    ipNum += 1print "Total client number: %d" % ipNumfd.close()

运行结果：

IP             Number220.178.150.3    159.42.2.185      1221.228.143.52   3219.140.190.130  1218.79.251.215   1Total client number: 5

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