python里面用try捕获异常的题

[cola dad]

定义一个函数func(domainlist) domainlist:为域名列表，例如：['xx.com','www.xx.com','www.xxx.com'...]
函数功能：要求依次ping 域名，如果ping 域名返回结果为：request time out，则把域名记录到日志文件里，
并且跳过继续ping下个域名。（提示用os模块的相关方法）

[chuifengde]

import os 

e=['xx.com','www.xx.com','www.baidu.com','www.sina.com','www.si.com']
s=filter(lambda v:os.system(" ping {0} -n 1 -w 1".format(v)),e)
print(list(s))

[混沌鳄鱼]

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import logging
import os 

DOMAIN_LIST = ['xx.com','www.xx.com','www.baidu.com','www.sina.com','www.si.com']

def func(domainlist):
    for domain in domainlist:
        if os.system(" ping {0} -n 1 -w 1".format(domain)):
            logging.error('Host {} is unreachable!'.format(domain))

# 开启日志
LOG_PATH = r'd:/temp/ping.log'
logging.basicConfig(level=logging.DEBUG,
                    format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s',
                    datefmt='%Y-%m-%d %H:%M:%S',
                    filename=LOG_PATH,
                    filemode='a')

if __name__ == '__main__':
    func(DOMAIN_LIST)

[lwghost]

try: .... except: log continue