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¡¡¡¡ int __cdecl abs ( int number)
¡¡¡¡ {
¡¡¡¡      return( number>=0 ? number : -number );
¡¡¡¡ }
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¡¡¡¡ ΪʲôÔÚ±ê×¼¿âÖлá³öÏÖÕâôÒþ±ÎµÄ©¶´ÄØ£¿ÒòΪ¼ÆËã»úµÄ´æ´¢¿Õ¼äÓÐÏÞ£¬ËùÒÔCÖеÄÿÖÖÀàÐÍËùÕ¼×Ö½ÚÊýÒ²ÐëÊÇÓÐÏÞ´óС£¬ÕâÑù³ÌÐòÓïÑÔÖеÄÀàÐÍÕæÕýÄܱíʾµÄÖµÓò¾ÍÊǶÔÓ¦ÊýѧÀàÐÍÖµÓòµÄÓÐÏÞ×Ó¼¯ÁË¡£Õâ¾ÍÊÇÏÖʵÓëÀíÏëµÄ²î¾à¡£²»½öÈç´Ë£¬ÒòΪÓзûºÅÀàÐͱÈÎÞ·ûºÅÀàÐͶದ³öÒ»¸ö¶þ½øÖÆÎ»À´±íʾ·ûºÅÐÅÏ¢£¬ÔòËüÃÇÄܱíʾµÄÖµÓòÓÖÓÐËù²îÒì¡£µ«ÊdzÌÐòԱд³ÌÐòÈ´ÍùÍùÓÐÒâ»òÎÞÒâµØºöÂÔÕâÖÖ²î±ð£¬²»Ô¸Ãæ¶ÔÏÖʵ(ÕýÈçÓеijÌÐòÔ±µ÷Óú¯Êý´Ó²»¼ì²é·µ»ØÖµ)¡£ËûÃÇʹÓóÌÐòÖеÄÀàÐ;ÍÏóÔÚʹÓÃÀíÏëµÄÊýѧÉϵÄÀàÐÍÒ»Ñù¡£Å·ÖÞ°¢ÀïÑÇÄÉ»ð¼ý±¬Õ¨¾ÍÊÇ´ËÖÖ´íÎó¸øÎÒÃǵÄ×î²ÒÍ´½Ìѵ¡£
¡¡¡¡ ¼ÈÈ»Èç´Ë£¬Ã¿Ò»¸öC³ÌÐòÔ±¶¼ÓÐÔðÈÎÀμÇÕâôһÌõ¹æÔò:“¾­³£·´ÎÊ£ºÕâ¸ö±äÁ¿»ò±í´ïʽ»áÉÏÒç»òÏÂÒçÂ𣿔(¡¶±à³Ì¾«´â£­Microsoft±àдÓÅÖÊÎÞ´íC³ÌÐòÃØ¾÷¡·P80,Steve Maguire Öø)¡£
Àý×Ó:
#include <stdio.h>
int MyAbs(int number)
{
 return(number>=0 ? number :(-number));
}
void main()
{
 int number = 0x80000000;
 int absnumber = MyAbs(number);
 
 if(absnumber<0)
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