#include<sys/socket.h>#include<netinet/in.h>#include<arpa/inet.h>#include<stdio.h>intmain(intargc,char*argv[]){unsignedlongiptemp;if(argc!=2)//如果参数不正确{printf("请输入正确的ip地址值.\n");return1;}iptemp=inet_addr(argv[1]);//调用inet_addr函数获得网络地址printf("返回的ip数值是%lu.\n",iptemp);return0;}