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A. a=1,b=2 B.++a; C.a=a+1=5; D.y=int(a); 22.ÒÔÏÂËùÁÐ×Ö·û³£Á¿ÖУ¬²»ºÏ·¨µÄÊÇ£º ¡£

A.¡¯\\0xff¡¯ B.¡¯\\65¡¯ C.¡¯$¡¯ D.¡¯\\x1a¡¯

23.ÈçÓÐÒÔ϶¨Ò壺¡°int y[4][4]={1,2,3,4,5,6,7,8,9,10},*py1=y[1],(*py2)[4]=y;¡±,Ôò²»ÄÜÕýÈ·ÒýÓÃֵΪ7µÄÊý×éÔªËØµÄ±í´ïʽÊÇ£º ¡£

A.*(y[1]+2) B.*(y+1)+2 C.py1[2] D.py2[1][2] 24.ÒÔϲ»ÖÂÔì³ÉËÀÑ­»·µÄÓï¾äÊÇ£º ¡£

A. for(y=0,x=1;x>++y;x=i ++)i =x; B. for(; ;x+=i ); C. while(x=8)x--;

D. for(i =10,sum=0;sum<=i ;)sum= --i ;

25.ÒÔÏÂ˵·¨ÖÐÕýÈ·µÄÊÇ£º ¡£

A£® Ò»¸ö½á¹¹Ö»Äܰüº¬Ò»ÖÖÊý¾ÝÀàÐÍ

B£® ²»Í¬½á¹¹ÖеijÉÔ±²»ÄÜÓÐÏàͬµÄ³ÉÔ±Ãû C£® Á½¸ö½á¹¹±äÁ¿²»¿ÉÒÔ½øÐбȽÏ

D£® ¹Ø¼ü×ÖtypedefÓÃÓÚ¶¨ÒåеÄÊý¾ÝÀàÐÍ

26.ÉèÓж¨Ò壺¡±float y=3.45678;int x;¡±£¬ÔòÒÔϱí´ïʽÖÐÄÜʵÏÖ½«yÖÐÊýÖµ±£ÁôСÊýµãºó2룬µÚ3λËÄÉáÎåÈëµÄ±í´ïʽÊÇ£º ¡£

A.y=(y*100+0.5)/100.0 B. x=y*100+0.5,y=x/100.0 C. y=y*100+0.5/100.0 D.y=(y/100+0.5)*100.0 27. ÒÔϳÌÐò¶ÎÊä³ö½á¹ûÊÇ£º ¡£ int a=10,b=11,c=12,s;

s=a++<=10&&b--<=2&&c++;printf(¡°%d,%d,%d,%d¡±,s,a,b,c);

A. 0,11,10,13 B. 1,11,10,13 C. 0,11,10,12 D.1,11,10,12 28.ÏÂÁгÌÐò¶ÎÖ´Ðкó±äÁ¿jµÄÖµÊÇ£º ¡£

int j;char *s=¡±x\\045\\¡± ¡±;for(j=0;*s++;j++); A. 7 B. 3 C. 4 D. 5

29.ÉèÓÐÒÔÏÂ˵Ã÷£¬ÔòֵΪ210µÄ±í´ïʽÊÇ£º ¡£ struct s

{ int a;int *b;};

int x0[]={110,120},x1[]={210,220}; struct s x[]={{100},{200}},*p=x; x[0].b=x0;x[1].b=x1;

µÚÈý²¿·Ö ½­ËÕÊ¡¶þ¼¶Í³¿¼½üÎåÄêÊÔÌâ»ã±à

A. *p->b B. (++p)->a C. *(p++)->b D.*(++p)->b

30.ÉèÓС°char s[]=¡±Program¡±,*p=s;¡±,ÔòÒÔÏÂÐðÊöÖÐÕýÈ·µÄÊÇ£º ¡£ A. Êý×ésµÄÄÚÈÝÓëÖ¸Õë±äÁ¿pÖÐÄÚÈÝÏàͬ B. Êý×ésµÄ³¤¶ÈÓëstrlen(p)µÄÖµÏàµÈ C. p[5]µÄÖµµÈÓÚs[5]µÄÖµ D. sizeof(s)µÈÓÚsizeof(*p) ¶þ¡¢Ìî¿ÕÌâ

1.ÈôÓж¨ÒåÓï¾ä¡°static char str[4][20]={¡°thank¡±,¡±you¡±,¡±very¡±,¡±much!¡±};¡± ÔòstrÊý×éÖд洢¡¯\\0¡¯µÄÊý×éÔªËØÓУº ¸ö¡£

2.ÉèÓÐÓï¾ä¡°int a=2,b=3,c=2;a+=b*=(++b-c++); ¡°,±äÁ¿bµÄÖµÊÇ ¡£ 3.ÒÔϳÌÐòÊä³ö½á¹ûÊÇ£º ¡£ #define T(x,y,z) x*y*z/4

main()

{ int a=1,b=3,c=5;

printf(\4.ÒÔϳÌÐòÊä³ö½á¹ûÊÇ£º ¡£ main()

{printf(\fun(int n)

{if(n= =1)return 1; return n-fun(n-1); } 5.ÒÔϳÌÐòÊä³ö½á¹ûÊÇ£º ¡£ main()

{ enum color{RED=5,BLUE,WHITE=0,BLACK};

char *colorname[]={\ printf(\6.¡¾³ÌÐò¡¿

main()

{ int j,k,s,m;

for(k=1;k<10;k++) { s=1;m=k+2;

for(j=k;j

printf(\³ÌÐòÊä³ö½á¹ûs= ,k= ¡£

7.¡¾³ÌÐò¡¿

func(int a,int b) { return a+b;} main()

{int x=6,y=7,z;

z=func(func(x++,y++),func(--x,--y)); printf(\

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main()

{ int i,p[9]={1,2,3,4,5,6,7,8,9},*p1[3],**p2; for(i=0;i<3;i++)p1[i]=&p[6-3*i]; p2=p1+2;

for(i=1;i<3;i++)

printf(\³ÌÐòÔËÐÐʱÊä³öµÄµÚÒ»ÐÐÊÇ £¬µÚ¶þÐÐÊÇ ¡£ 9.¡¾³ÌÐò¡¿

fun(int *s,int n1,int n2) { int t;

while(n1

*(s+n1)=*(s+n2); *(s+n2)=t; n1++;n2--; } }

main()

{ int a[10]={1,2,3,4,5,6,7,8,9,0}, i ,*p=a; fun(p,0,3); fun(p+3,1,6); for(i=0;i<10;i++)

{ if(i%5= =0)printf(\ printf(\ } }

³ÌÐòÊä³öµÄµÚÒ»ÐÐÊÇ £¬µÚ¶þÐÐÊÇ ¡£ 10.¡¾³ÌÐò¡¿

#include main()

{ struct st{ int x,y;

}st1[5]={10,11,20,21,30,31,40,41,50,51},st2[5]; FILE *fp;int i ;

fp=fopen(\

fwrite(st1,sizeof(struct st),5,fp); rewind(fp); for(i=0;i<3;i++)

{fread(&st2[i],sizeof(struct st),1,fp);

fseek(fp, sizeof(struct st),SEEK_CUR); /*±¾º¯ÊýʹÓÃ˵Ã÷¼ûÊÔ¾íβ²¿×¢ÊÍ*/ }

fseek(fp,-4L*sizeof(struct st),SEEK_END); for(i=3;i<5;i++)

{fread(&st2[i], sizeof(struct st),1,fp); fseek(fp, sizeof(struct st),SEEK_CUR);

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}

for(i=0;i<5;i+=2)

printf(\ fclose(fp); }

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(3)fread(buffer,size,count,fp)/ fwrite(buffer,size,count,fp):freadº¯ÊýÓÃÀ´ÒÀ´Î¶ÁÈëÒ»×éÊý¾Ý£¬fwriteº¯ÊýÓÃÀ´Ò»´ÎÏòÎļþÖÐдһ×éÊý¾Ý£¬ÆäÖÐbufferÖ¸Ã÷ÆðʼµØÖ·£¬size±íʾҪ¶ÁдµÄ×Ö½ÚÊý£¬countΪҪ½øÐжÁд¶àÉÙ¸ösize×Ö½ÚµÄÊý¾ÝÏfpΪÎļþÖ¸Õë¡£

11.ÒÔϳÌÐò´òÓ¡ËùÓзûºÏÏÂÁÐÌõ¼þµÄ3λÕýÕûÊý£ºÊÇijһ¸öÊýµÄƽ·½Êý£¬ÆäÖÐÓÐÁ½Î»Êý×ÖÏàͬ¡£È磺100¡¢121µÈ¡£ main()

{int a,b,c,n,k; for(k=10; ;k++) {n= £¨1£© ;

if(n>999) £¨2£© ; a=n/100; b= £¨3£© ; c=n;

if(!((a-b)*(b-c)*(c-a)))printf(\ } }

12.ÒÔϳÌÐòʵÏÖ½«aÊý×éÖкó8¸öÔªËØ´Ó´óµ½Ð¡ÅÅÐòµÄ¹¦ÄÜ¡£ void sort(int *x,int n); main()

{int a[12]={5,3,7,4,2,9,8,32,54,21,6,43},k; sort( £¨1£© ,8);

for(k=0;k<12;k++)printf(\}

void sort(int *x,int n) { int j,t;

if(n= =1)return; for(j=1;j

{t=x[0];x[0]=x[j];x[j]=t;} sort(x+1, £¨3£© );