/* 范例：3-6 */
#include<stdio.h>
void main(void)
{
               /* 十進(jìn)制的60轉(zhuǎn)換成八進(jìn)制的74 */
  printf("十進(jìn)制:60 ==> 八進(jìn)制:%o\n", 60);
               /* 八進(jìn)制的074轉(zhuǎn)換成十進(jìn)制的60 */
  printf("八進(jìn)制:074 ==> 十進(jìn)制:%d\n", 074);  
  printf("正整數(shù):%d\n", 622);    /* 十進(jìn)制的正整數(shù) */
  printf("負(fù)整數(shù):%d\n", -622);   /* 十進(jìn)制的負(fù)整數(shù) */
               /* 十進(jìn)制的116轉(zhuǎn)換成十六進(jìn)制的74 */
  printf("十進(jìn)制:116 ==> 十六進(jìn)制:%x\n", 116);
               /* 十六進(jìn)制的0x74轉(zhuǎn)換成十進(jìn)制116 */
  printf("十六進(jìn)制:0X74 ==> 十進(jìn)制:%d\n", 0X74);  
  getchar();
}

程序執(zhí)行結(jié)果：
十進(jìn)制:60 ==> 八進(jìn)制:74
八進(jìn)制:074 ==> 十進(jìn)制:60
正整數(shù):622
負(fù)整數(shù):-622
十進(jìn)制:116 ==> 十六進(jìn)制:74
十六進(jìn)制:0X74 ==> 十進(jìn)制:116