循环查询指定服务器开放端口列表

# @Time   : 2025/3/22 
# @Author : cookie
# @Desc   :

import socket
import concurrent.futures
from datetime import datetime

# 设置目标IP和端口范围
target_ip = input("请输入目标IP地址: ")
start_port = int(input("请输入起始端口(1): "))
end_port = int(input("请输入终止端口(65535): "))

# 创建一个函数来检查端口是否开放
def scan_port(target_ip, port):
    try:
        with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
            socket.setdefaulttimeout(1)  # 设置连接超时时间
            result = sock.connect_ex((target_ip, port))  # 检查端口
            if result == 0:
                print(f"端口 {port} 开放")
    except socket.error as e:
        # 可以记录错误，但扫描不会中断
        pass

# 获取当前时间并开始扫描
start_time = datetime.now()

# 使用线程池进行并发端口扫描
with concurrent.futures.ThreadPoolExecutor(max_workers=100) as executor:
    # 使用列表生成式将所有任务提交给线程池
    executor.map(lambda port: scan_port(target_ip, port), range(start_port, end_port + 1))

end_time = datetime.now()

# 显示扫描所花费的时间
scan_duration = end_time - start_time
print(f"扫描完成! 耗时: {scan_duration}")