科学时遇到DNS解析的问题

import time
import ping3  # 假设使用的是ping3库进行ping操作


def ping_ip(ip):
    ping_times = []
    for _ in range(5):  # Ping每个IP 5次
        start_time = time.time()
        response = ping3.ping(ip, timeout=1)  # 设置超时为1秒
        end_time = time.time()

        if response is not None:
            delay = end_time - start_time
            ping_times.append(delay)
    avg_response_time = sum(ping_times) / len(ping_times) if ping_times else None
    return ip, avg_response_time


# 全球公共dns ip
ips = [
    "114.114.114.114",
    "114.114.115.115",
    "178.79.131.110",
    "223.5.5.5",
    "223.6.6.6",
]
results = [ping_ip(ip) for ip in ips]

# 过滤掉没有有效响应时间的IP
results = [(ip, avg_response_time) for ip, avg_response_time in results if avg_response_time is not None]

# 按照平均响应时间排序结果
results.sort(key=lambda x: x[1])

# 打印延时最短的5个IP
print("延时最短的5个IP:")
for i in range(min(5, len(results))):
    print(f"{i + 1}. IP地址: {results[i][0]}, 平均响应时间: {results[i][1]:.3f} 秒")