近期工作需要，写了一个地址转化的小脚本，方便找到对应IP归属地址段，对于运维人员有一定辅助作用
中间有些地方可以简化，不过也懒得改了…
如下：
# coding:utf-8
def transition_to_sub26(file):
with open(file, 'r', encoding='utf-8') as file:
for ip in file:
ip_end = ip.split(".")[3]
ip_end = int(ip_end)
def sub_net(ip_end):
if ip_end < 64:
return "0/26"
elif ip_end < 128:
return "64/26"
elif ip_end < 192:
return "128/26"
else:
return "192/26"
res = sub_net(ip_end)
# print(res)
ip_join = ".".join(ip.split(".")[0:3])
# print(ip_join) #10.41.0
ip_sub = ip_join + "." + res
# return ip_sub
print(ip_sub) # 10.41.0.64/26
with open("IP地址转换结果(26位).txt", 'a+', encoding='utf-8') as file1:
file1.write(ip_sub + "n")
def transition_to_sub28(file):
with open(file, 'r', encoding='utf-8') as file:
for ip in file:
ip_end = ip.split(".")[3]
ip_end = int(ip_end)
def sub_net(ip_end):
if ip_end < 16:
return "0/28"
elif ip_end < 32:
return "16/28"
elif ip_end < 48:
return "32/28"
elif ip_end < 64:
return "48/28"
elif ip_end < 80:
return "64/28"
elif ip_end < 96:
return "80/28"
elif ip_end < 112:
return "96/28"
elif ip_end < 128:
return "112/28"
elif ip_end < 144:
return "128/28"
elif ip_end < 160:
return "144/28"
elif ip_end < 176:
return "160/28"
elif ip_end < 192:
return "176/28"
elif ip_end < 208:
return "192/28"
elif ip_end < 224:
return "208/28"
elif ip_end < 240:
return "224/28"
else:
return "240/28"
res = sub_net(ip_end)
# print(res)
ip_join = ".".join(ip.split(".")[0:3])
# print(ip_join) #10.41.0
ip_sub = ip_join + "." + res
print(ip_sub) # 10.41.0.64/26
with open("IP地址转换结果(28位).txt", 'a+', encoding='utf-8') as file2:
file2.write(ip_sub + "n")
if __name__ == '__main__':
file = input("请输入IP地址文件路径:" + "n")
input_result = input("请输入需要转换的地址段，【1】代表转化为26位，【2】代表转化为28位：" + "n")
if input_result == "1":
transition_to_sub26(file)
if input_result == "2":
transition_to_sub28(file)
