为什么我想写一个代理服务器,代理服务器更改数据包的IP/端口并发出修改后的数据。尝试packagemainimport("encoding/hex""github.com/google/gopacket""github.com/google/gopacket/layers""fmt""net")funcmain(){packetData:=[]byte{69,0,0,63,64,237,64,0,64,6,74,221,192,168,1,90,52,85,184,151,141,230,0,80,174,147,86,192,18,107,243,149,128,24,0,229,9