python - 如何将此项目 append 到同一列表中，而不是每次循环时创建一个新列表？

Question

这是我当前的代码:

fd = open('/var/log/secure.log')
syslog = fd.readlines()

countTable = {} # initialization of a dictionary
for line in syslog:
        data = line.split()  
        if len(data) >= 15:
                if data[14] in ['user=root']:
                        intrusions = []
                        ip = data[13].replace('rhost=', "")
                        intrusions.extend(ip)
                        print "intruder:", intrusions

这是我得到的输出:

intruder: ['218.92.0.201']
intruder: ['222.186.173.142']
intruder: ['222.186.173.142']
intruder: ['222.186.173.142']
intruder: ['218.92.0.201']
intruder: ['218.92.0.201']
intruder: ['222.186.30.218']
intruder: ['218.92.0.201']

如何将所有这些 IP 放入同一个“入侵”列表中？

谢谢!

Answer 1

您只需在第一个循环之前移动您的intrusions = []:

countTable = {} # initialization of a dictionary

intrusions = []
for line in syslog:
        data = line.split()  
        if len(data) >= 15:
                if data[14] in ['user=root']:

                        ip = data[13].replace('rhost=', "")
                        intrusions.extend(ip)
                        print "intruder:", intrusions