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struct SDummy
{
  int A : 2;
  int B : 8;
  int C : 12;
  int D : 10;
};
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    ÎÒÔÚ×î½üµÄÏîÄ¿ÖУ¬ÐèÒªÒ»¸ö±äÁ¿£¬Í¨¹ýÕâ¸ö±äÁ¿ÄÜÖªµÀÆä±íʾµÄÄêÔÂÈÕʱ·ÖÃëµÈÐÅÏ¢¡£ÓÉÓÚÎÒÏëʹÄê¿É±íʾ20Äê¼´¿É£¬¹ÊÐèÒª5λÀ´±íʾ£»Ô¹²12Ô£¬ÐèÒª4λ£»ÈÕ¹²31ÈÕ£¬ÐèÒª5λ£»Ê±¹²24Сʱ£¬ÐèÒª5λ£»·Ö60·Ö£¬ÐèÒª6λ£»Ãë60Ã룬ÐèÒª6λ£»µ±È»»¹ÓÐÆäËüÐÅÏ¢£¬ÎÒÒ²¸ù¾ÝÐèÒª·ÖÅäÁËÏàӦλµÄλÓò¡£ÓÚÊÇÎÒд³öÁËÈçÏÂËùʾ´úÂ룺
struct SDummy
{
  U8  Year : 5;
  U8  Month : 4;
  U8  Day : 5;
  U8 Hour : 5;
  U8 Minute :6;
  U8 Second : 6;
  U16 ID1;
  U16 ID2;
  U16 ID3;
  U16 ID4;
};
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#include<stdio.h>
#include<conio.h>
float cal(int a,char sym,int b);
main()
{
 int a=0,b=0;
 char sym='\0';
 float c=0.0;
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