C语言程序设计试题试题及答案

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if(s1==s2)B.if(s1=s2)

C.if(strcmp(s1,s2))

D.if(strcmp(s1,s2)==0)

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doublefun(intx,inty){z=x+y;returnz;}

fun(intx,y){intz;returnz;}

fun(x,y){intx,y;doublez;z=x+y;returnz;}

doublefun(intx,inty){doublez;z=x+y;returnz;}

10.ÒÔϳÌÐòµÄÊä³ö½á¹ûÊÇ(B)¡£

#include<stdio.h>

#defineF(y)8.19-y

#definePRINT(a)printf("%d",(int)(a))

voidmain(void)

{

intx=2;

PRINT(x*F(3));

}

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11.ÒÔϳÌÐòÖбàÒëºÍÔËÐнá¹û¾ùÕýÈ·µÄÒ»¸öÊÇ(C)¡£

A.voidmain(void)

{

union

{

intn;

floatx;

}m={1};

printf("%d",m.n);

}

B.voidmain(void)

{

union

{

intn;

floatx;

}m={12.5};

printf("%f",m.x);

}

C.voidmain(void)

{

union

{

floatx;

intn;

}m={12.5}

printf("%f",m.x);

}

D.voidmain(void)

{

union

{

intn;

floatx;

}m=5;

printf("%d",m.n);

}

12.ÉèÓж¨Ò壺inta=1,*p=&a;floatb=2.0;charc='A';ÒÔϲ»ºÏ·¨µÄÔËËãÊÇ(A)¡£

p++;B.a--;C.b++;D.c--;

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main()

{

int*p,*q,a,b;

p=&a;

printf("inputa:");

scanf("%d",*p);

¡­

}

*p±íʾµÄÊÇÖ¸Õë±äÁ¿pµÄµØÖ·

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intal,a2,charc1,c2;

scanf("%d%c%d%c",&a1,&c1,&a2,&c2);

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16.ÈôÓÐ˵Ã÷£ºinta[10];Ôò¶ÔaÊý×éÔªËصÄÕýÈ·ÒýÓÃÊÇ(C)¡£

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C.[ÕûÐͳ£Á¿]D.[ÕûÐͱí´ïʽ]

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ina[10]=(0,0.0,0,0);

inta[10]={};C.inta[]£½{0};

D.inta[10]={10*1};

19.ÒÔϳÌÐò¶Î(C)¡£

x=-1;

do

{

x=x*x;

}

while(!x);

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C.Ñ­»·Ö´ÐÐÒ»´ÎD.ÓÐÓï·¨´íÎó

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(4)ÓбäÁ¿¶¨Òåinta[3]={0,1,2},b[3];£¬¿ÉÒÔÓÃb=a£¬Ê¹Êý×ébµÄÿ¸öÔªËغÍaµÄÿ¸öÔªËØÏàµÈ¡£

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ÏÂÃæ³ÌÐòµÄÔËÐнá¹ûÊÇ(¢Ù)¡£

#include<stdio.h>

voidmain(void)

{

inti;

chara[]="Time",b[]="Tom";

for(i=0;a!='\0'&&b!='\0';i++)

if(a==b)

if(a>='a'&&a<='z')printf("%c",a-32);

elseprintf("%c",a+32);

elseprintf("*");

}

(4·Ö)

ÏÂÃæ³ÌÐò¶ÎµÄÔËÐнá¹ûÊÇ(¢Ù)¡£

i=1;s=3

do

{

s+=i++;

if(s%7==0)continue;

else++i;

}whlie(s<15);

printf("%d",i);

(4·Ö)

ÈôÔËÐÐʱÊäÈë:5999,ÔòÒÔϳÌÐòµÄÔËÐнá¹û(±£ÁôСÊýµãºóһλ)ÊÇ(¢Ù)¡£

voidmain(void)

{

intx;

floaty;

scanf("%d",&x);

if(x>=0&&x<=2999)y=18+0.12*x;

if(x>=3000&&x<=5999)y=36+0.6*x;

if(x>=6000&&x<=10000)y=54+0.3*x;

printf("%6.1f",y);

}

(4·Ö)

ÒÔϳÌÐòµÄÔËÐнá¹ûÊÇ(¢Ù)¡£

voidmain(void)

{

inta=1,k;

for(k=0;k<3;k++)printf("%4d",f1(a))

}

intf1(intx)

{

staticintz=3,y=0;

y++;

z++;

return(x+y+z);

}

(4·Ö)

ÒÔϳÌÐòµÄ¹¦ÄÜÊǼÆË㺯ÊýF(x,y,z)=(x+y)/(x-y)+(z+y)/(z-y)µÄÖµ£¬ÇëÑ¡ÔñÌî¿Õ¡£

#include<stdio,h>

#include<math.h>

floatfun1(float,float);

voidmain(void)

{

floatx,y,z,sum;

scanf("%f%f%",&x,&y,&z);

sum=fun1(¢Ù)+fun1(¢Ú);

printf("sum=%f\n",sum);

}

floatfun1(floata,floatb)

{

floatnum;

num=a/b;

returnnum;

}

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Çó¦ÐµÄ½üËÆÖµ,Ö±µ½×îºóÒ»ÏîµÄֵСÓÚ10e-6Ϊֹ¡£

#include<stdio.h>

#include<math.h>

voidmain(void)

{

longi=1;

¢Ùpi=0;

while(i*i<=10e+6){pi=¢Ú;i++;}

pi=sqrt(6.0*pi);

printf("pi=%10.6f\n",pi);

}

ÏÂÃæ³ÌÐòµÄ¹¦ÄÜÊÇ°ÑÒÔϸø¶¨µÄ×Ö·û°´Æä¾ØÕó¸ñʽ¶ÁÈëÊý×éstr1ÖУ¬²¢Êä³öÐÐÁкÅÖ®ºÍÊÇ3µÄÊý×éÔªËØ¡£

voidmain(void)

{

charstr1[4][3]={'A','b','C','d','E','f','G','h','I','j','K','i'

};

intx,y,z;

for(x=0;x<4;x++)

for(y=0;¢Ù;y++)

{

z=x+y;

if(¢Ú)printf("%c\n",str1[x][y]);

}

}

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µÝ¹é¹«Ê½ÈçÏ£º

age(1)=10

age(n)=age(n-1)+2(n>1)

#include<stdio.h>

intage(intn)

{

intc;

if(n==1)c=10;

elsec=¢Ù;

returnc;

}

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voidmain(void)

{

intyear,yes;

scanf("%d",&year);

if(year%400==0)yes=1;

elseif(¢Ù)yes=1;

else¢Ú;

if(yes)printf("%dis",year);

elseprintf("%disnot",year);

printf("aleapyear.\n");

}

ÒÔϳÌÐòʵÏÖ:ÊäÈëÈý¸öÕûÊý,°´´Ó´óµ½Ð¡µÄ˳Ðò½øÐÐÊä³ö¡£

voidmain(void)

{

intx,y,z,c;

scanf("%d%d%d",&x,&y,&z);

if(¢Ù){c=y;y=z;z=c;}

if(¢Ú){c=x;x=z;z=c;}

if(¢Û){c=x;x=y;y=c;}

printf("%d,%d,%d",x,y,z);

}

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include<iostream.h>

#include<string.h>

classCRect

{

private:

charcolor[10];

intleft;

inttop;

intlength;

intwidth;

public:

CRect();

CRect(char*c,intt,intlef,intlen,intwid);

voidSetColor(char*c);

voidSetSize(intl=100,intw=100);

voidMove(intt,intl);

voidDraw();

};

CRect::CRect()

{

strcpy(color,"Black");

top=0;

left=0;

length=0;

width=0;

}

CRect::CRect(char*c,intt,intlef,intlen,intwid)

{

strcpy(color,c);

top=t;

left=lef;

length=len;

width=wid;

}

voidCRect::SetColor(char*c)

{

strcpy(color,c);

}

voidCRect::SetSize(intl,intw)

{

length=l;

width=w;

}

voidCRect::Move(intt,intl)

{

top=t;

left=l;

}

voidCRect::Draw()

{

cout<<"¾ØÐÎ×óÉϽÇ×ø±êΪ("<<left<<","<<top<<")"<<endl;

cout<<"¾ØÐγ¤ºÍ¿í·Ö±ðΪ"<<length<<","<<width<<endl;

cout<<"¾ØÐεÄÑÕÉ«ÊÇ"<<color<<endl;

}

voidmain()

{

CRectr;

r.SetColor("Red");

r.Move(10,20);

r.SetSize(100,200);

r.Draw();

r.Move(50,50);

r.SetColor("Blue");

r.Draw();

}

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#include<iostream.h>

classA

{

intx,y;

public:

A()

{

x=0;

y=0;

}

A(inta,intb)

{

x=a;

y=b;

}

~A()

{

if(x==y)

cout<<"x=y"<<endl;

else

cout<<"x!=y"<<endl;

}

voidDisplay()

{

cout<<"x="<<x<<",y="<<y<<endl;

}

};

voidmain()

{

Aa1,a2(2,3);

a1.Display();

a2.Display();

}

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#include<iostream.h>

classA

{

private:

intn;

public:

A(inti)

{

n=i;

}

operator++()

{

n++;

}

operator++(int)

{

n+=2;

}

voidDisplay()

{

cout<<"n="<<n<<endl;

}

};

voidmain()

{

Aa(2),b(2);

a++;

++b;

Display();

Display();

}

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#include<iostream.h>

intfunc1(intn);

intfunc2(intn);

voidmain()

{

intsum;

sum=func2(5);

cout<<sum<<endl;

}

intfunc1(intn)

{

if(n==1)

return1;

else

returnn*func1(n-1);

}

intfunc2(intn)

{

ints=0;

for(inti=1;i<=n;i++)

s+=func1(i);

returns;

}

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#include<iostream.h>

#include<math.h>

classA

{

private:

________(1)___________

protected:

________(2)__________

public:

A(inta,intb,intc)

{

X=a;

Y=b;

Z=c;

}

intGetX()

{

returnX;

}

intGetY()

{

returnY;

}

intGetZ()

{

returnZ;

}

};

classB_____(3)_______

{

private:

intK;

public:

B(inta,intb,intc,intd)_______(4)_________

{

K=d;

}

voidShow()

{

cout<<GetX()<<GetY()<<Z<<K<<endl;

}

};

voidmain()

{

Bb(1,2,3,4);

Show();

}

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#include<iostream.h>

#include<math.h>

voidfunc1(doubles[])

{

inti,k;

for(k=2,i=0;i<30;i++)

{

s[i]=k;

______(5)_________

}

}

voidfunc2(doubles[],doublew[])

{

doublesum;

inti,k;

for(k=0,i=0,sum=0;i<30;i++)

{

_________(6)___________

if((i+1)%5==0)

{

w[k]=sum/5;

_________(7)__________

k++;

}

}

}

voidmain()

{

doubles[30],w[6];

func1(s);

func2(s,w);

}

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main()

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{

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inta[3][3],*p,i;

p=&a[0][0];

for(i=0;i<9;i++)

p[i]=i;

for(i=0;i<3;i++)

cout<<a[1][i];

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voidmain()

{

inta[]={1,2,3,4,5,6,7,8,9,0},*p;

for(p=a;p<a+10;p++)

cout<<*p<<¡°,¡±;

}

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voidmain()

{

intc=35;

intb=c&c;

cout<<b;

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charb[4]=¡±ABC¡±;

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cout<<a[5];

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intFun(intx=1,inty,intz=3);

intFun(intx,inty=2,intz);

intFun(intx=1,inty,intz);

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#include<iostream.h>

longsub(intnum)

{

inti;

longsubsum=1;

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

subsum*=i;

return(subsum);

}

voidmain()

{

inti;longsum=0;

for(i=1;i<=5;i++)

{

sum+=sub(i);

cout<<i<<","<<sum<<endl;

}

}

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#include<iostream.h>

classBase

{

public:

voidWhoAmI()

{

cout<<"ClassBass"<<endl;

}

virtualvoidWho()

{

cout<<"ClassBass"<<endl;

}

};

classDerived:publicBase

{

public:

voidWhoAmI()

{

cout<<"ClassDerived"<<endl;

}

voidWho()

{

cout<<"ClassDerived"<<endl;

}

};

voidmain()

{

Base*p;

Baseb;

Derivedd;

p=&b;

p->WhoAmI();

p->Who();

p=&d;

p->WhoAmI();

p->Who();

}

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#include<iostream.h>

intConvert(char*str);

voidmain()

{

chars[10]="12345";

intn=Convert(s);

cout<<n<<endl;

}

intConvert(char*str)

{

intnum=0,digit;

for(inti=0;(1);i++)

{

digit=(2);

num=num*10+digit;

}

returnnum;

}

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#include<iostream.h>

intConvert(char*str);

voidmain()

{

chars[10]="12345";

intn=Convert(s);

cout<<n<<endl;

}

intConvert(char*str)

{

intnum=0,digit;

for(inti=0;(3);i++)

{

digit=(4);

num=num*10+digit;

}

returnnum;

}

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voidmain()

{

inta[]={1,2,3,4,5,6,7,8,9,0},*p;

for(p=a;p<a+10;p++)

cout<<*p<<¡°,¡±;

}

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template<classT>

Tfunc(Tx,Ty)

{

returnx*x+y*y;

}

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classA

{

intx;

public:

A(intn)

{

x=n;

}

};

classB:publicA

{

inty;

public:

B(inta,intb);

};

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B::B(inta,intb):x(a),B(b){}

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main()

{

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for(i=1;i<=101;__(7)__)

{

s=s+i*t;

t=_(8)__;

}

}

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