获取数据流量获取网络 流量-include < stdlib.h> #include < stdio.h> #include < pcap.h> void usage() void dispatcher_handler(u_char*, const struct pcap_pkthdr*, const u_char*) void main(int argc, char**argv){pcap_t*fp char errbuf[PCAP_ERRBUF_SIZE] struct timeval st_ts u_int netmask struct bpf_program fcode　　　 /* 检查命令行参数的合法性*/　　if (argc != 2)　　{