批量IP转换成C段

# -*- coding: utf-8 -*-
"""
@Time ： 2020/1/3 16:32
@Auth ： oliver
@File ：ip-c.py
@IDE ：PyCharm

"""
def ipToc(ip):
    ip_c =ip.split(‘.‘)
    # print len(ip_c)
    nei_ip=(10,192,172,127)
    # 判断是IP分割后数组长度，防止空行，数组越界问题
    if len(ip_c)==4:
        # 去除内网IP
        # print type(ip_c[0])
        if int(ip_c[0]) not in nei_ip:
            # print ip_c

# print ip_c[0] + ‘.‘ + ip_c[1] + ‘.‘ + ip_c[2] + ‘.1/24‘
            l= ip_c[0] + ‘.‘ + ip_c[1] + ‘.‘ + ip_c[2] + ‘.1/24‘
            with open(‘ip_c.txt‘,‘a+‘) as f:
                # 防止重复，判断不存在，然后写入文件
                if l not in f:
                    f.writelines(l+‘\n‘)

if __name__ == ‘__main__‘:
    with open(‘ip.txt‘, ‘r‘) as f:
        for line in f:
            line = line.strip(‘\n‘)
            ipToc(line)