CPrimerPlus第五版全书源代码.docx

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CPrimerPlus第五版全书源代码.docx

CPrimerPlus第五版全书源代码

//chapter01

/*

#include

intmain(void)

{

intdogs;

printf("Howmanydogsdoyouhave?

\n");

scanf("%d",&dogs);

printf("Soyouhave%ddog(s)!

\n",dogs);

return0;

}

*/

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//chapter02

//fathm_ft.c--converts2fathomstofeet

/*

#include

intmain(void)

{

intfeet,fathoms;

fathoms=2;

feet=6*fathoms;

printf("Thereare%dfeetin%dfathoms!

\n",feet,fathoms);printf("Yes,Isaid%dfeet!

\n",6*fathoms);

return0;

}

*/

//////////////////////////////////////////////////////////////////

/*

#include

intmain(void)//asimpleprogram

{

intnum;//defineavariablecallednum

num=1;//assignavaluetonum

printf("Iamasimple");//usetheprintf()functionprintf("computer.\n");

printf("Myfavoritenumberis%dbecauseitisfirst.\n",num);return0;

}*/

//////////////////////////////////////////////////////////////////

//two_func.c--aprogramusingtwofunctionsinonefile

/*#include

voidbutler(void);//ISO/ANSICfunctionprototyping

intmain(void)

{

printf("Iwillsummonthebutlerfunction.\n");butler();

printf("Yes.BringmesometeaandwriteableCD-ROMS.\n");return0;

}

voidbutler(void)//startoffunctiondefinition

{

printf("Yourang,sir?

\n");

}

*/

//////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////

//chapter03数据和C

/*

//altnames.c--portablenamesforintegertypes

#include

the

#include//supportsportabletypesthesystemdoesn'tcontainheaderfile

intmain(void)

{

int16_tme16;//me16a16-bitsignedvariable

me16=4593;

printf("First,assumeint16_tisshort:

");

printf("me16=%hd\n",me16);

printf("Next,let'snotmakeanyassumptions.\n");printf("Instead,usea\"macro\"frominttypes.h:

");

printf("me16=%"PRId16"\n",me16);

return0;

}

*/

//////////////////////////////////////////////////////////////////

/*

//bases.c--prints100indecimal,octal,andhex

#include

intmain(void)

{

intx=100;

printf("dec=%d;octal=%o;hex=%x\n",x,x,x);

printf("dec=%d;octal=%#o;hex=%#x\n",x,x,x);

//%#十六进制前显示Ox//八进制数前显示o

return0;

}

*/

//////////////////////////////////////////////////////////////

/*

//charcode.c-displayscodenumberforacharacter

#include

intmain(void)

{

charch;

printf("Pleaseenteracharacter.\n");

scanf("%c",&ch);

printf("Thecodefor%cis%d.\n",ch,ch);

return0;

}

*/

//////////////////////////////////////////////////////////////

/*

//print1.c-displayssomepropertiesofprintf()

#include

intmain(void)

{

intten=10;

inttwo=2;

printf("Doingitright:

");

printf("%dminus%dis%d\n",ten,2,ten-two);

printf("Doingitwrong:

");

printf("%dminus%dis%d\n",ten);//forgot2arguments

return0;

}

*/

//////////////////////////////////////////////////////////////

/*print2.c-moreprintf()properties*/

/*

#include

intmain(void)

{

unsignedintun=00;//systemwith32-bitint

shortend=200;//and16-bitshort

longbig=65537;

longverybig=908642;

//C也可以使用前缀h来表示short类型。

//因此%hd显示一个十进制的short整型。

%ho为八进制形式。

printf("un=%uandnot%d\n",un,un);

printf("end=%hdand%d\n",end,end);

printf("big=%ldandnot%hd\n",big,big);

printf("verybig=%lldandnot%ld\n",verybig,verybig);

return0;

}

*/

//////////////////////////////////////////////////////////////

/*showf_pt.c--displaysfloatvalueintwoways*/

/*

#include

intmain(void)

{

floataboat=32000.0;

doubleabet=2.14e9;

longdoubledip=5.32e-5;

printf("%fcanbewritten%e\n",aboat,aboat);

printf("%fcanbewritten%e\n",abet,abet);

printf("%fcanbewritten%e\n",dip,dip);

return0;

}

*/

//////////////////////////////////////////////////////////////

/*toobig.c-exceedsmaximumintsizeonoursystem*/

/*

#include

intmain(void)

{

inti=47;

unsignedintj=95;

printf("%d%d%d\n",i,i+1,i+2);

printf("%u%u%u\n",j,j+1,j+2);

return0;

}

*/

//////////////////////////////////////////////////////////////

/*typesize.c--printsouttypesizes*/

/*

#include

intmain(void)

{

//c99providesa%zdspecifierforsizes

printf("Typeinthasasizeof%ubytes.\n",sizeof(int));//4bytes

printf("Typecharhasasizeof%ubytes.\n",sizeof(char));//1bytesprintf("Typelonghasasizeof%ubytes.\n",sizeof(long));//4bytesprintf("Typedoublehasasizeof%ubytes.\n",sizeof(double));//8bytesreturn0;

}

*/

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//thisis

//chapter04字符串的格式化输入/输出//defines.c--usesdefinedconstantsfromlimit.handfloat.

useful,youcanknowsomelimitsofthesystem

/*

#include

#include//integerlimits

#include//floating-pointlimits

intmain(void)

{

printf("Somenumberlimitsforthissystem:

\n");printf("Biggestint:

%d\n",INT_MAX);

printf("Smallestlonglong:

%lld\n",LONG_MIN);printf("Onebyte=%dbitsonthissystem.\n",CHAR_BIT);printf("Largestdouble:

%e\n",DBL_MAX);

printf("Smallestnormalfloat:

%e\n",FLT_MIN);printf("floatprecision=%ddigits\n",FLT_DIG);printf("floatepsilon=%e\n",FLT_EPSILON);return0;

}

*////////////////////////////////////////////////////////////////*flags.c--illustratessomeformattingflags*/

/*

#include

intmain(void)

{

printf("%x%X%#x\n",31,31,31);printf("**%d**%d**%d**\n",42,42,-42);printf("**%5d**%5.3d**%05d**%05.3d**\n",6,6,6,6);

return0;

}

*///////////////////////////////////////////////////////////////

/*floatcnv.c--mismatchedfloating-pointconversions*/

/*

#includeintmain(void)

{

floatn1=3.0;

doublen2=3.0;

longn3=00;

longn4=90;printf("%.1e%.1e%.1e%.1e\n",n1,n2,n3,n4);

printf("%ld%ld\n",n3,n4);

printf("%ld%ld%ld%ld\n",n1,n2,n3,n4);

return0;

}

*/

//////////////////////////////////////////////////////////////

//floats.c--somefloating-pointcombinations

/*

#include

intmain(void)

{

constdoubleRENT=3852.99;//const-styleconstant

printf("*%f*\n",RENT);

printf("*%e*\n",RENT);

printf("*%4.2f*\n",RENT);

printf("*%3.1f*\n",RENT);//takecarehereprintf("*%10.3f*\n",RENT);

printf("*%10.3e*\n",RENT);printf("*%+4.2f*\n",RENT);

printf("*%010.2f*\n",RENT);

return0;

}

*/

//////////////////////////////////////////////////////////////

/*intconv.c--somemismatchedintegerconversions*/

/*

#include

#definePAGES336

#defineWORDS65618

intmain(void)

{

shortnum=PAGES;

shortmnum=-PAGES;

printf("numasshortandunsignedshort:

%hd%hu\n",num,

num);

printf("-numasshortandunsignedshort:

%hd%hu\n",mnum,

mnum);

printf("numasintandchar:

%d%c\n",num,num);printf("WORDSasint,short,andchar:

%d%hd%c\n",WORDS,WORDS,WORDS);

return0;

}

*/

/////////////////////////////////////////////////////////////

/*longstrg.c--printinglongstrings*/

/*

#include

intmain(void)

{

printf("Here'sonewaytoprinta");

printf("longstring.\n");

printf("Here'sanotherwaytoprinta\

longstring.\n");

printf("Here'sthenewestwaytoprinta"

"longstring.\n");//ANSIC

return0;

}

*/

/////////////////////////////////////////////////////////////

/*praise1.c--usesanassortmentofstrings*/

/*

#include

#definePRAISE"Whatasupermarvelousname!

"

intmain(void)

{

charname[40];

printf("What'syourname?

\n");

scanf("%s",name);printf("Hello,%s.%s\n",name,PRAISE);

printf("Hello,%s.%s\n",name,"verygood");

return0;

}

*/

/////////////////////////////////////////////////////////////

/*praise2.c*/

/*

#include

#include//providesstrlen()prototype

//takecareofthisprogram

//takecareofhere

#definePRAISE"Whatasupermarvelousname!

"intmain(void)

charname[40];printf("What'syourname?

\n");scanf("%s",name);printf("Hello,%s.%s\n",name,PRAISE);printf("Yournameof%dlettersoccupies%dmemorycells.\n",strlen(name),sizeofname);

printf("Thephraseofpraisehas%dletters",strlen(PRAISE));

printf("andoccupies%dmemorycells.\n",sizeofPRAISE);return0;

}

*//////////////////////////////////////////////////////////////

/*printout.c--usesconversionspecifiers*/

/*

#include

#definePI3.141593

intmain(void)

{

intnumber=5;

floatespresso=13.5;

intcost=3100;

printf("The%dCEOsdrank%fcupsofespresso.\n",number,espresso);

printf("Thevalueofpiis%f.\n",PI);printf("Farewell!

thouarttoodearformypossessing,\n");printf("%c%d\n",'$',2*cost);

return0;

}

*//////////////////////////////////////////////////////////////

/*prntval.c--findingprintf()'sreturnvalue*/

/*

#include

intmain(void)

{

intbph2o=212;

intrv;

rv=printf("%dFiswater'sboilingpoint.\n",bph2o);

//finding

printf("Theprintf()functionprinted%dcharacters.\n",printf()'sreturnvalue==howmanycharactersprinted

rv);

return0;

*/

/////////////////////////////////////////////////////////////

/*skip2.c--skipsoverfirsttwointegersofinput*/

/*

#include

intmain(void)

{

intn;

printf("Pleaseenterthreeintegers:

\n");scanf("%*d%*d%d",&n);

skip

printf("Thelastintegerwas%d\n",n);

return0;

}

*/

/////////////////////////////////////////////////////////////

/*strings.c--stringformatting*/

/*

#include

#defineBLURB"Authenticimitation!

"

intmain(void)

{

printf("/%2s/\n",BLURB);

un

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