C语言期中考试题Word格式.docx

C语言期中考试题Word格式.docx

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C.receivesdatafromthekeyboardD.receivesdatafromanyinput

3.ThebasicdatatypesofCareC

A.integer,real,imaginary,doubleB.integer,real,double,character

C.integer,double,float,characterD.character,double,real,float

4.Thevalueof10/9isD

A.1.1B.1.111

C.1.1111D.1

5.AllvariablesmusthaveD

A.AdatatypeandanameB.Anexpressionandaspecifier

C.SyntaxandlogicD.Memorylocationandstatusflag

6.ExpressionscontainingoperatorswiththesameprecedenceareevaluatedaccordingtotheirC

A.orderB.associativity

C.hierarchyD.position

7.AnyexpressionthatisterminatedbyasemicolonisB

A.aconstantB.astatement

C.evaluatedfromlefttorightD.illegalunlessanequalsignispreceding

8.Assumingx=10,theexpression:

x+=15*6changesthevalueofxtoB

A.150B.100

C.900D.90

9.Assumingxis10,whatistheoutput:

printf（“%d”,++x）;

D

A.8B.9

C.10D.11

10.Whenusingascanffunctiontoinputmultiplevalues,theusermustseparatetheinputwithB

A.commasB.spaces

C.semicolonsD.forwardslashes

11.Assumea=5,b=2,c=4,d=6,ande=5.Whatisthevalueofe%b*c>

5||c%d*e>

7isB

A.0B.1

C.2D.3

12.Inaswitchstatement,thekeywordbreakB

A.isaccessedifnoneoftheothercasevaluesmatchtheexpression

B.causestheprogramtoexittheswitchstatementcompletely

C.causestheprogramtomovethedefaultcase

D.causestheprogramtoterminate

13.Whatistheoutputfromthefollowingloop:

i=10;

while（i<

=10）

printf（“%d\n”,i）;

B

A.Nooutput

B.Thenumber10willbeoutputinfinitely

C.Thenumber10willbeoutputexactlyonetime

D.Thenumber0through10willbeoutput

14.Whenplacedinawhileloop,thecontinuestatementC

A.CausesthelooptoterminateB.Causestheprogramtoterminate

C.SkipstothenextiterationoftheloopD.Doesnothinginawhileloop

15.ThecomponentsofafunctionheaderincludeD

A.call,returnvalue,prototype

B.argumentlist,parameterlist,call

C.functionbody,functioncall,argumentlist

D.returntype,name,parameterlist

Section3:

Expressioncalculationandfillongblanks.

1.Theitemsenclosedwithintheparenthesesinafunctioncallstatementarecalled________formalparameters__.

2.Thestatementfor（i=1;

I<

=9;

i++）printf（“%3d”,_3i-2__________）,thendisplaythefollowingnumbers:

147101316192225.

3.Theprogramthattranslatesahigh-levelsourceprogramasacompleteunitbeforeanyindividualstatementisexecutediscalleda（n）_complier_________.

4.Thevalueofexpression10>

=10&

&

2<

=10is___1_______.

5.OnIBM-compatiblecomputers,theEOFmarkisgeneratedwheneverthe___ctrl+c______arepressedsimultaneously.

6.Thefollowingcodefragmentprintsout___3_____

intx,y;

x=y=3;

switch（y）

{

case1:

x=0;

break;

case2:

x=17;

case4:

x=9;

break;

}

Printf（“%d”,x）;

7._do-while________statementalwayscreatesaposttestloop.

8.Thesmallestandmostbasicdataiteminacomputerisa__bit______;

itisreallyaswitchthatcanbeeitheropen（0）orclosed

（1）.

9.Thefollowingcodefragmentprintsout____5_____.

inta=3,b;

if（a>

5）

b=7;

elseif（a<

2）

b=6;

else

b=5;

printf（“%d”,b）;

10.Whenwritingaprogram,a（n）___selection_____structureprovidesthecapabiitytomakeachoicebetweendifferentinstructions,dependingontheresultofsomecondition.

Section4:

Pleaseanswerfollowingquestioninyouranswersheet..

1.WhatisthePhaseofSoftwareDevelopmentProcess?

.

2.AnalysisthefollowingCstructures:

Structure（A）Structure（B）

if（n>

0）if（n>

0）

if（a>

b）{

z=a;

b）

elsez=a;

z=b;

}

else

Pleasedescribethedifferencebetweenstructure（A）and（B）.

3.Whatawhileloopthatisequivalenttotheforloopgivenbelow.

For（k=0;

k<

10;

k++）

sum=sum+k;

4.Pleasewritetheoutputofthefollowingstatements.

viodmain（）

ints=1,t=1,a,n;

scanf（“%d%d”,&

a,&

n）;

for（inti=1;

i<

n;

i++）

{

t=t*10+1;

s=s+t;

s*=a;

printf（“SUM=%d\n”,s）;

Inputdata:

24

Answer:

_____2468_________.

5.Pleasewritetheoutputofthefollowingstatements.

intfunc（inta,intb）

staticintm=0,i=2;

i+=m+1;

m=i+a+b;

return（m）;

main（）

intk=4,m=1,p1,p2;

p1=func（k,m）;

p2=func（k,m）;

printf（“%d,%d\n”,p1,p2）;

________8,17__________

6.Pleasewritetheoutputofthefollowingstatements.

intk,s;

for（k=1,s=0;

k++）

if（k%2==0）continue;

s+=k;

Printf（“k=%ds=%d”,k,s）;

_____k=10s=25______________

7.Pleasewritetheoutputofthefollowingprogram.

#include<

stdio.h>

voidmain（）

intk,x,s,t;

x=3;

s=0;

t=x;

for（k=1;

=3;

{

t=t*10+x;

s=s+t;

printf（“%d#”,s）;

___________________.

Section5:

Programming

1.Writeaninteractiveprogramthataskstheusertoenteramonthnumber（between1and12）.

Programneedtocheckuserinput:

（1）.Iftheinputisinvaid,displayerrormessageandpromptuserreenternumber.

（2）.Iftheinputisvalid,theprogramshoulddispaythemonthnameofinputnumber.（e.g.Inputis“1”,thenoutputis”January”）.

2.Findnumbers:

thesenumberswhicharesatisfiedwiththefollowingfourconditions:

（1）.Thenumberisainteger,whichconsistsoffourdigits（between1000and9999）;

（2）.Thefirsttwodigitsaresame;

（3）.Thelasttwodigitsaresamebutdifferentfromthefirsttwodigits;

（4）.Thenumberisthesquareofsomeotherintegernumber.