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3.1 Ñ¡ÔñÌâ

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£¨5£©iX=2£¬iY=3£¬ch='a'£¬±í´ïʽiZ=(iX||iY)&&(ch>'A')µÄÖµÊÇ D ¡£ A£®true B£®false C£®0 D£®1 £¨6£©±í´ïʽ£¨6!=8£©&&('A'<'a')µÄÖµÊÇ B ¡£

A .true B£®1 C£®0 D£®·Ç0Öµ (7) int k = x>y? (x>z?x:z) : (y>z?y:z) Óï¾äµÄÄ¿µÄÊÇ£º A A Çó x, y, z ×î´óÖµ B. Çó x, y, z ×îСֵ C Çó x, y, z ÖмäÖµ D Çó x, y, z ƽ¾ùÖµ £¨8£©ÓÐÈçϳÌÐò¶Î

int a=14,b=15,x; char c=¡¯A¡¯;

x=(a&&b)&&(c<¡¯B¡¯);

Ö´ÐиóÌÐò¶Îºó£¬xµÄֵΪ( D ) A ture B false C 0D 1

(9) ÒÔϳÌÐòµÄÊä³ö½á¹ûÊÇ( B ) main() {

int a=0,i=1; switch(i)

{

case 0:

case 3:a+=2; case 1:

case 2:a+=3;

default:a+=5;

}

printf(\ }

A 3 B 8C10D 2

3.2 Ìî¿ÕÌâ

£¨1£©ÏÂÃæ³ÌÐòµÄÊä³ö½á¹ûÊÇ 2 ¡£

#include \main() {int i,j; i=j=2; if(i= =1) if(i==2) printf(\ else printf(\¨Cj); printf(\

£¨2£©ÏÂÃæ³ÌÐòµÄÊä³ö½á¹ûÊÇ

iX=3 iX>3

iX unknow ¡£

#include \main() {int iX=3; }

switch(iX) { case 1: }

case 2:printf(\case 3:printf(\case 4:

case 5:printf(\default:printf(\

£¨3£©ÒÔϳÌÐòµÄÔËÐнá¹ûÊÇiM=3£¬iN=4£¬iT=3 ¡£

#include \main()

{int iM,iN,iT,iA=2,iB=3; iM=(++iA==--iB)?¨C ¨CiA:++iB; iN=++iA;

iT=iB;

printf(\}

£¨4£©ÏÂÃæ³ÌÐòµÄÊä³ö½á¹ûÊÇ x ¡£

#include \main()

{char chT='w',chA='m',chB='d',chC='x',chM; chM=(chT>chA)?chT:chA; chM=(chM>chB)?chM:chB chM=(chM>chC)?chM:chC; printf(\}

£¨5£©ÏÂÃæ³ÌÐòµÄ¹¦ÄÜÊÇÅжÏÒ»¸öÈýλÊýÊÇ·ñΪˮÏÉ»¨Êý£¬Ìî¿Õʹ³ÌÐòÍêÕû¡£ËùνˮÏÉ»¨Êý¾ÍÊǸÃÊý¸÷λÉÏÊý×ÖµÄÁ¢·½Ö®ºÍµÈÓÚ¸ÃÊý¡£

#include \main()

{ int iNum,iH,iT,iS,iSum;

printf(\ scanf(\ iS=iNum; iT=iNum/10 ; iH=iNum/100;

if(iS*iS*iS+iT*iT*iT+iH*iH*iH==iNum ) printf(\ÊÇË®ÏÉ»¨Êý¡£\\n\ else

printf(\²»ÊÇË®ÏÉ»¨Êý¡£\\n\}

/*È¡µÃ¸öλÉϵÄÊý*/ /*È¡µÃʮλÉϵÄÊý*/ /*È¡µÃ°ÙλÉϵÄÊý*/

3.3 ±à³ÌÌâ

£¨1£©´Ó¼üÅÌÊäÈëÒ»¸öÄê·ÝÖµ£¬ÅжÏÊÇ·ñÈòÄê¡£ÉèiYearΪijһÄê·Ý£¬iYearΪÈòÄêµÄÌõ¼þΪ£ºiYear¿ÉÒÔ±»4Õû³ýÇÒ²»¿ÉÒÔ±»100Õû³ý£¬»òÕßiYear¿ÉÒÔ±»400Õû³ý¡£

#include \#include \

int main(void) {

/* ´Ë´¦Ìí¼ÓÄã×Ô¼ºµÄ´úÂë */ int iYear;

printf(\

scanf(\

if(iYear@0==0||(iYear%4==0&&iYear0!=0)) printf(\ else

printf(\ getch(); return 0;

}

£¨2£©´Ó¼üÅÌÊäÈëÈý¸öÕûÊý£¬°´ÓÉСµ½´óµÄ˳ÐòÊä³ö¡£ #include \main()

{int i,j,k,max;

scanf(\ max=i>j?i:j;

max=max>k?max:k; printf(\ getch();

}

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#include \#include \

int main(void) {

/* ´Ë´¦Ìí¼ÓÄã×Ô¼ºµÄ´úÂë */ int iWeek,iHours ; float fSalary,fTaxes;

printf(\ scanf(\

printf(\ scanf(\ switch(iWeek){ case 1: case 2: case 3:

case 4: case 5:

fSalary=20*iHours; fTaxes=fSalary*0.045; break;

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