1、1 10?:,X1OjV?U 4 CA?UEErL,X/c9 CA?,X 27bJ,XK48V? o_ !8V.A|A !80HA4 A|A CA?,XoT EG ,X_$F!7.B,XA56 4m*,X/c!80GV)E E/c bS*,X24EG (M!,X_$ UNIX024Click to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu OjNO 0E$d/cJ “.c0,X=) _V hello.caEE QE 4Acc hello.cVp$d/c“uJA_V$+0J+04AE/NNE J* ; a.ou
2、tEg9a.outG E a.out DChello, worldJW0244AtEQE 1? #include main()printf(“hello, worldn“);gyoG main Q main 4s/main 8 printf y“n01 CA?/cM6/cD.oA C A?/cAJV)F+D G4,XD oA n?U; ,XAu1k0 G*b,|Au1kE/S*,X CA?,XD2Ob FortranA?,X$/c D PascalA?,XE/ D32O _D,X + mainE D,X Q “uL$ main(M!,XD !/cF mainD,XCK E G-!/cFNO !
3、5B mainDmainDE A*JWD9o0A*,XD /cAAu ,74m,X3 97bDgE/c!,X1 A #include *b A4A A 1 70 L) BgE A44DKE DBx6,X/“A*D A*Do/ 0 DFWEg D6 ,X0 OjVp +0,X nEk.,X44 GSEg D 3Click to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu 6 printfD,X D 6* n 0Vp*/c,X6 n_Vprintf(“hello, world“);C4A E A*ADL !kKS,
4、XEg M64,X1/c3 m6#include main()printf(“hello, “);printf(“world“);printf(“n“);E!/c!M6,X/c,XEg, A“ n “hello, world/ca /c,XFY,kJC44 1 2 .rP printf D,X D+0 cJ c M6,XE+0c,X+0?)1.2. G1k/* fahr=0 20 300 D “!#z!#z; /* fahr=0 20 300 D “!#z!#z;4A 0F S*“G C A? GFNO S*E DCK ) ; A !*bA G,X2W+2O _ G ,XAu1k 4CA Cl
5、ick to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu lower = 0;upper = 300;step = 20;fahr = lower;W GA5B 5A 43#zE6 Au1k, !8 *)A GEg E while)A ,X*Ewhile (fahr E ,XOj#A ,X5Vp5,(fahr ) 8 ,X 35A aG#A ,X5Vp,a ; ) ,X5#A4p (fahrupper)43J44; C while)A ,X5A /c)A “uJWA !8H/c,X; 4!6while A ,X
6、) *8 CK9,X55A VM6,X#zE6/c3 *8 ,X )5A _Vwhile (i :m5A J E1k0E t0N+0E SkE1k,X4 G2#.Z,!5?8 ,X!5BFwG?UZ!EW# ,XoNEZ/A5 EE 7,X/NJO,S*E/N,XQ4A/c4F0F ),X),XCA celsius = 5 * (fahr 32) / 9*bAu1kn “!#z,h,X!#zJ4pC4 G celsius AA 7!4p,X)DFF7+b 5 9FHD 5 / 9,L8 4 k,X4p 0 !8E “k,X!#zF 0A_$3 , printfD,Xos6 printfE*Eg
7、D1 70!8.A44AD,X1 DY D,X+0J,X!,R % 6,X!5BJn D_V %dnH _ D !8A printf(“ %dt%dn“, fahr, celsius);*b DHD fahr celsius,XJ 5K+- !8!0 A,X4A /* print Fahrenheit Celsius tablefor fahr = 0, 20, ., 300; floating point version */main()float fahr, celsius;float lower, upper, step;lower = 0; /* lower limit of temp
8、eratuire scale */upper = 300; /* upper limit */step = 20; /* step size */fahr = lower;while (fahr 7!Vp1kE1k0,X0D H _; H _E1kVp1kE1k0#B5#AA while (fahr ,X G E1k! int2O _,X0DE6 float2O _,X0Dprintf,XE6A %3.0fClick to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu D “!#z !#z; 4p, /cD H
9、 ?U,X E bWZF G5 S*Z int2O _,X G fahr 9,X forA #z,XL$L$ !9KSF G5Au1k!#z,X 1Ffahr )_,X) printfDA*A !8 ; 1Ffahr = fahr + 20) G fahrrt!9KSJa 5“VpAu1kk,X5 faise)4!6; whileA for)A ,X) 5A 3 *8 CK9,X4A F1F5F1Frt!9KSF1FF )#define LOWER 0 /* lower limit of table */#define UPPER 300 /* upper limit */#define ST
10、EP 20 /* step size */* print Fahrenheit Celsius table */main()int fahr;for (fahr = LOWER; fahr ,X“u 1.5. +0Eg9Egy9,4+0 _DB)G,X/cA5 )A/c EEG A|A,X/c s _,X=(5go,XEg9Eg _M2 1T )A)Eg9Eg)JEg9EgF;+0#,X)#+ +0X,X+0c5! +0+ 0+04 6 0gBBS!Eg9Eg#F6FIE_S*g,X CA?/c ,G /cEo V) A c = getchar() G c Eg9#,X+0E/+0E EEK,
11、Eg9,XGbEg9+0,X“ 1 70A|A! A* putcharD D+0_VA putchar()H _ G c,XY+0,X6 D9E / #) putchar printfED xA*Eg,X cA*,X c7Click to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu 1.5.1. b getchar putcharD Z?JWEg9Eg-A,X4mDG,X*,X-1T ),X_$Eg9 +0 EgJ VQwhile ( 3 )0 1st version */main()int c;c = get
12、char();while (c != EOF) putchar(c);c = getchar();JG2E1k0 !=H _DJKDJG?U ?UW) char2O _,XF, G EG S*0 G .B/cL?UqC*bJh,X)(Mn,XDb4P!EW ,X C A?/c , E+0 /c4mk2 2nd version */main()int c;while (c = getchar() != EOF)putchar(c);A/c while )A OjA+0JJC4 c#AA+0 43VpA+043; whileA J DA+0Lc G; whileA EEg9,X4!5B while
13、)A 4!6; 5H mainD; 43E!/cEg9L getcharD /c )Z E 4-Z/cH/c,CK924E/N A5 );E/4m,X/cKA4 ,E/NEVpE S*E/2O _,XA 4m,X/c 6L)?hGFS!E/ whileA ,X5F9AC !8A c = getchar() != EOF1bA c = (getchar() != EOF)AA ; c,X5B 0 1 bA* getcharD .43EJ,X4pA4,XYA ?1 20,X,GF44 1 6 PA AuDWM6,X /c2O#include /* count characters in input
14、; 1st version */main()long nc;nc = 0;while (getchar() != EOF)+nc;printf(“%ldn“, nc);JA Click to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu +nc;9Z,XE1k0 +Js6; t 10 *A nc = nc + 1WA +nc 2 2nd version */main()double nc;for (nc = 0; gechar() != EOF; +nc);printf(“%.0fn“, nc);b float
15、double2O _ printfDFS* %fE A %.0f DD )!5E #AVp5$C; )E 6) F; ,X ) 0 KSz,XEg9/c,X)hA ),X01.5.3. AuDy9,XE/c*b4AuEg9,X D M6EgAEg9# c,X6)! 6 043 !84Au D1b4Au6 0,XD#include Click to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu count lines in input */main()int c, nl;nl = 0;while (c = get
16、char() != EOF)if (c = n)+nl;printf(“%dn“, nl);A/c while)A ,X) ifA W 7rA +nl ifA #A ,X5VpA5,; J ,XA 8 ,X4A EG a *4E 0,X ASCII+0LJ 10h“ n )+0 0D,X/c44 1 9 4mEg9 Eg,X/cJJE4,X0N*0N44 1 10 4mEg9 Eg,X/cJJ,X D )AD+0DEG )A,Xn!EWRW)J 0N 0,X+0cM6E!/c UNIX 24 wc/c,XP|FF#include #define IN 1 /* inside a word */
17、#define OUT 0 /* outside a word */Click to buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu count lines, words, and characters in input */main()int c, nl, nw, nc, state;state = OUT;nl = nw = nc = 0;while (c = getchar() != EOF) +nc;if (c = n)+nl;if (c = | c = n | c = t)state = OUT;els
18、e if (state = OUT) state = IN;+nw;printf(“%d %d %dn“, nl, nw, nc);/c; !F )A,X1+0W0 )At4Au state GA)/c! !7!b )AW,X )A GC OUT EG S*Z0 G IN OUT5“uS*Jh,XD 1 0E /cA EW,X/cE/.“3A, EW,X/cVpE . !85rt,XJ,X 3 G nl nw ncFA5B 0E/*“ ?U“E _rPC/s6,X 0 c 0 M6#A EG E ,X|0J86if (; Vp A 1 ; A 2E5A F )5A 3 8 Y,XA c )AA
19、uD/c else ,XA if A A if A Z 8 Y,X5A 44 1 11 4V)#A )AAuD/cVp/c, /JAFw ,XEg9 6 )E2OJA 6 44 1 12 4m/c! )A,X6 DJEg91.6. D4EFY94m/c4Au D+0N,Q00N0 0 JW+0),X DE/c,Xr*J EEA/cA|A CA?M6,XKNl,XEg9+0 122O !8 *D4, D+),X DE !S* 10(0,X GM6A/c,X/(#include /* count digits, white space, others */main()int c, i, nwhit
20、e, nother;int ndigit10;nwhite = nother = 0;for (i = 0; i = 0 HA ; 43J,X)A F 8 ,X8F5A Vp5F$C; !b else ,XA Vp,XA2Ob!M6,X )AAuD/cVp“u else h,XA AA ; )|0 1 if elseK 06,XA celse if (5 )A /cAAuN5?AA5G*M6/,X4E)A4X,X G2Vp! ifF! else G 4EoC/FwEWKS,Xnc 6CYNIM6,X E+ 1 3 0A|A,X switch A oZ4mC/c,X /W(ME bnH _+0
21、!EW44 1 13 4m/c DEg9 )AKSz,X, “G ,X, !EW4 V, ,X, ?U Lo44 1 14 4m/c DEg9 +0)Nez,X, 1.7. DCA?,XD1b FortranA?,X$/cD31b PascalA?,XE/DDAu1k,XoZ/1T,X“!8 S*DL?U5int power(int m, int n);/* test power function */main()int i;for (i = 0; i = 0 */int power(int base, int n)int i, p;p = 1;for (i = 1; i CA?/c,X-A
22、mainD A A*Z powerDprintf(“%d %d %dn“, i, power(2, i), power( i, 3);! A* mainD powerDE D A*; powerD mainDE ,XHDJ D A int power(int base, int n) D,X2O _ + ADE 4p,X2O _ powerD,X DS*,X + powerDYFJW)DF ?,XJWD S*, ,X D +5CK0U G i p3E powerD,X i mainD,X iGE Dn Y )W89AE 0 )WE () mainD!,XA int power(int m, i
23、nt n);= 0 */* (old style version) */power(base, n)int base, n;int i, p;p = 1;for (i = 1; i nE int2O _,X !8HD,X A*D,XD, G5, s9,X GEJWoA? ,X!VFortran1A?EE*A* PascalG* var D,X EoA?A*,XDNOAK s D5AK D,X C?U,X b C A?A*D6,y AD G,X5 6 J/,XC,XA*,Xb A*D D ,0b,XF G !8NqS*,X GE /c 21T“VM6,XE powerD*ZEBClick to
24、buy NOW!PDFXCHANGEwww.docu Click to buy NOW!PDFXCHANGEwww.docu power: raise base to n th power; n = 0; version 2 */int power(int base, int n)int p;for (p = 1; n 0; n)p = p * base;return p;J D n*0 GJEELc ; ,X for)A E,J 0E L?UNq9 G i powerDYF n,X)0E A*D n,X s D?U3 AD6 AD,X GE/A*5L?U A*DoYA5B,X G,X T
25、?z, G,XJ5A*DL?Uh,X DJ2O _JEEWKyAK G 1 50A|AJVpD4 D ZD4 *0 DE4D,XD4CK2,X!5B WJ D42D A*D EED4AK D42,XE8V?UA|A,XKNl1.9. +0D4+0D4 C A? *,XD42O _M6EE4m/c9A+0D4 0+0D4,XD,X*“A/cA94 JKS,X D9A1k“,X M2 1T )while (E),X )if (A !),XKS E?UKS ),A KS ,A ,XKSz DKS,X M6,X,/c7Z8F(*bA9 #AA9,X ,A J-F EE/E/!EW ) ;E/4m/cOj4m(0,XD getlineWA Eg9,X GAD JW 3*7getlineDhA AE *,XAAuW6 A9 E A ,XKSz
