将十六进制转化为点分十进制,如0xffffffff为255.255.255.255
#include <stdio.h> int main() { int src=0xffffffff; printf("请输入十六进制地址:"); while(scanf("%x",&src)!=EOF) { int res[4]; int times=4; while(times>0) { int temp=0x000000ff; temp=temp&src; res[times-1]=temp; src=src>>8; times--; } for(times=0;times<4;times++) { printf("%d",res[times]); if(times<3) {putchar('.');} else {putchar('\n');} } printf("请输入十六进制地址:"); } return 0; }