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August 12, 2019 14:02
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python3
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| #!/usr/bin/python3 | |
| import socket | |
| ip = input('输入要扫描的IP：') | |
| #输入的端口值返回的是一个字符串，使用int()将返回的字符串转为整型。 | |
| kaishi_prot = int(input('输入要扫描端口的起始位置：')) | |
| jieshu_prot = int(input('输入要扫描端口的结束位置：')) | |
| #使用for循环结合range()函数生成一个列表对输入的扫描端口进行遍历扫描，并做异常处理。 | |
| for prot in range(kaishi_prot,jieshu_prot): | |
| try: | |
| s = socket.socket() | |
| s.settimeout(2) #连接超时为2秒 | |
| s.connect((str(ip),int(prot))) | |
| print('>>>开放的端口号：',prot) | |
| print(s.recv(1024)) #tcp接收，可以识别常用端口对应的服务。 | |
| s.close() | |
| except Exception as e: | |
| pass | |
| #print('>>>端口未开放，可能有误报：',e) | |
| print('扫描结束！') | |
| 运行截图，未加多线程有点慢： | |
|  | |
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