#!/usr/bin/env pythonimport reimport sysimport subprocess#定义配置ip地址函数def configip(fname,ip_addr,if_ind): content = '''TYPE=EthernetBOOTPROTO=none NAME=eth%sDEVICE=eth%sONBOOT=yesIPADDR=%sPREFIX=24''' % (if_ind,if_ind,ip_addr) with open(fname,'w') as fobj: fobj.write(content)#定义检测ip地址是否合法函数def check_ip(ip_addr): m = re.match(r'(\d{1,3}\.){3}\d{1,3}$',ip_addr) if not m: return False return True#定义配置主机名函数def config_hostname(): fhostname = '/etc/hostname' hostname = raw_input('Input You Hostname: ') with open(fhostname,'w') as fobj: fobj.write(hostname) subprocess.Popen('hostname %s ' % hostname,shell=True)#定义显示菜单函数def show_menu(): prompt = '''Configure IP Address:(0)eth0(1)eth2(2)eth3(3)eth4Your choice(0/1/2/3):''' try: if_ind = raw_input(prompt).strip()[0] except: print 'Invalid raw_input.' sys.exit(1) if if_ind not in '0123': print 'Wrong Selection. Use 0/1/2/3/' sys.exit(2) fname = '/etc/sysconfig/network-scripts/ifcfg-eth%s' % if_ind ip_addr = raw_input('ip address: ').strip() result = check_ip(ip_addr) if not result: print 'Invalid ip address!' sys.exit(3) configip(fname,ip_addr,if_ind) subprocess.Popen('systemctl restart network',shell=True) print '\033[32;1mConfigure ip address done. \033[0m'if __name__ == '__main__': main_menu = '''(0)config_hostname(1)config_ipaddrYour choice(0/1)''' try: ind = raw_input(main_menu).strip()[0] except: print 'Invalid raw_input.' sys.exit(4) if ind not in '01': print 'Wrong Selection. Use 0/1' sys.exit(5) if ind == '0': config_hostname() show_menu()备注：1. 通过指定方式的办法来获取地址，如果未指定的化可能会出现问题，有三种模式:static 静态ip；dhcp 动态ip；none 无(不指定)。2. m = re.match(r'(\d{1,3}\.){3}\d{1,3}$',ip_addr) # r 表示 raw string(原始字符串常量)，用于规避反斜杠的转义。3. python2 中 raw_input() 可以接收字符串、中文；input()只接收数字。python3 中无 raw_input() 只有input()，接收字符串、数字、中文，相当于python2中raw_input()和input()的结合。二、编写九九乘法表

for i in range(1 ,10): for j in range(1 ,i+1): print('%sx%s=%s ' % (j, i, j*i),end='') print()三、并行批量管理远程服务器

import sysimport getpassimport paramikoimport threadingimport osdef remote_com(host,pwd,command): ssh = paramiko.SSHClient() ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) ssh.connect(hostname=host,username='root',password=pwd) stdin,stdout,stderr = ssh.exec_command(command) out = stdout.read() error = stderr.read() if out: print('[%s] OUT:\n%s' % (host,out.decode('utf8'))) if error: print('[%s] ERROR:\n%s' % (host,error.decode('utf8'))) ssh.close()if __name__ == '__main__': if len(sys.argv) != 3: print('Usage: %s ipaddr_file "command"' % sys.argv[0]) exit(1) if not os.path.isfile(sys.argv[1]): print('No such file:', sys.argv[1]) exit(2) fname = sys.argv[1] command = sys.argv[2] pwd = getpass.getpass() with open(fname) as fobj: ips = [line.strip() for line in fobj] for ip in ips: t = threading.Thread(target=remote_com,args=(ip,pwd,command)) t.start()备注：1. 执行方式< python3 脚本名称 远程服务器地址文件 "需要的执行命令" >