二级C语言复习总结.pdf

C C C 6 9 6 9 6 9 A BCDE56FG HA BCDE56FG HA BCDE56FG HA BCDE56FG H I I I I JJJJ 1 if switch 2 main 3 9 9 9 3 3 3 3 5 A BC A BC A BC A BC DEFGDEFGDEFGDEFG H H H H 1 C 2 C ASCII 89 89 89 switch 7 2A BCDE 2A BCDE 2A BCDE 2A BCDE main define scanfprintf If e e 9 789 9 789 9 789 9 5 5 5 5 AB AB AB AB 4FFFF GHGHGHGH I JK I JK I JK I JK JAH JKJAH JKJAH JKJAH JK LMN OLMN OLMN OLMN O 4 JK JK JK JKPPPP QR S OTUQR S OTUQR S OTUQR S OTU 16V WXV WXV WXV WX YZ YZ YZ YZ 32VVVV WXWXWXWX ab ab ab ab cde cde cde cde 5FFFFf1JA Qgf1JA Qgf1JA Qgf1JA QgPPPP hijklm hijklm hijklm hijklm 0 x no no no no hiplm hiplm hiplm hiplm 0no no no no f1JA f1JA f1JA f1JA xhh q r3 q r3 q r3 q r3 0 st st st st u u u u x vt vt vt vt ddd r3 r3 r3 r3 0 st st st st 108 w3 w3 w3 w3 x 5yx 5yx 5yx 5y8 6FFFF2z 2A BC2z 2A BC2z 2A BC2z 2A BCPPPP BC BC BC BC B B B B 7 CDEFABCDEFABCDEFABCDEFAB GHEFIJK L GHEFIJK L GHEFIJK L GHEFIJK L 8 MN OMN OMN OMN O MN PJK 8 8 8 8 a abU J i i J i i J i i J i i J i i i J i i i J i i i int i 1 Printf d d d i i i i i Printf d d i i Printf d d d d i i i i int i 3 j J i i J i i J i i J i i J i i i J i i i J i i i int i 1 Printf d d d i i i i i Printf d d i i Printf d d d d i i i i 9IIII3J KL3J KL3J KL3J KLMMMM NO PKQPRNO PKQPRNO PKQPRNO PKQPR S TUVWS TUVWS TUVWS TUVWMMMMXYZO 3J PR XYZO 3J PR XYZO 3J PR XYZO 3J PR TU TU TU TU aH bG cb aH bG cb aH bG cb aH bG cb GH GH GH GH I I I I A BC A BC A BC A BCdddde 3J fge 3J fge 3J fge 3J fg 0 e e e e 1hhhh 1 0 e e e e 0 h h h h 0 KQBiVWKQBiVWKQBiVWKQBiVWMMMM j j j j 1 k k k k 0 lm n oplm n oplm n oplm n op 1 printf c a h h h h MMMMa printf d a h h h h MMMM65 1FFFFprintf Qg Qg Qg QgPPPP d GH GH GH GH c JA JA JA JA f MN MN MN MN N N N N ld long int lf double 2FFFFscanf Q Q Q Q PPPP hi hi hi hi 47 47 47 47 3FFFFputchar getchar Qg Qg Qg QgPPPP getchar 6 6 6 6 47 J 47 J 47 J 47 J A A A A a putchar y JA JA JA JAy45 45 45 45 4KKKKLMN OPQRLMN OPQRLMN OPQRLMN OPQRx ySTU VWSTU VWSTU VWSTU VW XXXX YZ YZ YZ YZ KKKK 5KKKKLMN aTLMN aTLMN aTLMN aT bc cdbc cdbc cdbc cd ef ghef ghef ghef gh X X X X YZ YZ YZ YZ KKKK C hi C hi C hi C hiPPPPc 8w 8w 8w 8w0 88880 1FFF F W fi W fi W fi W fi PPPP fi s fi s fi s fi s 1fl flflfl F F F F YYY Y0fl flflfl FFFF W fi S W fi S W fi S W fi S 1 9 8 fi fi fi fi 1 2FFF F fi fi fi fi PPPP s s s s 1fl flflfl F F F F YYY Y0fl flflfl FFFF PPPP aFFF Fforfl F fl F fl F fl F while do while bFFFFfor no no no no cFFFFt S 0 hit S 0 hit S 0 hit S 0 hi 0 0 0 0 continue C C C C 3 3 3 3PPPP breakPPPP i i i i fl fl fl fl G G G G FFFF break 5 5 5 5 continuePPPP i i i i fl fl fl fl 2 2 2 2F F F F C C C C fl fl fl fl QRQRQRQR FFFF T T T T T s T s T s T s 3FFFF Qg Qg Qg QgPPPP 0 0 0 0 PPPP HHHH HHHH 0 0 0 0 PPPP 4FFFF PPPP sqrt fabs pow sin pow a b 8 8 8 8 O O O O int p p p C C C CPPPP p d d d d 8888 8 8 8 8 p p 8888 p fl flflfl pFFFF C C C CPPPP e e e e p T T T T flflflfl pFFFF T T T T X X X X KKKK T T T T b P b P b P b P 0000T T T T G 3 G 3 G 3 G 3 R R R R 0X0X0X0X KKKK T T T T T f T f T f T f 0000 R R R R b P b P b P b P 0000 KQ KQ KQ KQ MMMM 9 b 278 9 b 278 9 b 278 9 b 278 9 5 9 5 9 5 9 5 ddddZO ZO ZO ZO p 7V m 7V m 7V m 7V m 9 b 9 b 9 b 9 b VW VW VW VW MMMMint a 2dddd p b P 2 b P 2 b P 2 b P 2 4 T S T S T S T S int a 1 2 5 F F F F a 2 Q Q Q Q XXXXa 2KKKK 56 56 56 56 T T T T 1IIII f f f f strlen strcat I I I I strcmp I I I I strcpy I I I I VW A BC VW A BC VW A BC VW A BC 6 786 786 786 78 strcat I I I I strcmp I I I IO O O O 2IIIIstrlen sizeof fi fl KQ fi fl KQ fi fl KQ fi fl KQ 3IIIIdefine f xI I I I x xIIII define f xIII I x x fl fl fl fl A A A A 7V 7V 7V 7Vdddd tuO g qO tuO g qO tuO g qO tuO g qO g fi fl g fi fl g fi fl g fi fl 4IIIIint p p int IIIImalloc 2I I I I p int IIIImalloc sizeof intII II II II 5IIII O O O Omain int argcddddchar argv IIII O PR O PR O PR O PRdddd PR PR PR PR xy f R xy f R xy f R xy f Rdddd 9 2 f 9 2 f 9 2 f 9 2 f 6IIII A BhO A BhO A BhO A BhO dddd N PR N PR N PR N PR N P N P N P N P RRRR 7IIII x x x x typedefK K K K dddd A DE A DE A DE A DE b b b b dddd x DE x DE x DE x DE dddd ED G x ED G x ED G x ED G xdddd AB AB AB AB C x O C x O C x O C x O dddd 2 2 2 2 dddd 29 29 29 29 8KKKK T T T T XXXX fKXKKXKKXKKXK P P P P int add int x int y main int XXXX fKXKKXKKXKKXK f add 9IIII MMMM char a a b c dddd f A f A f A f A sizeof a char a 5 a b c dddd f f f f sizeof a 10IIIIscanf gets MMMM 11IIII KL KL KL KLMMMM union TT int a char ch 2 K K K K MMMMsizeof struct TT 2 K K K K MMMMTTt1 t1 0 x1234 ch 0 0 x 34 ch 1 0 x12 12 z z z z O O O O i Jji Jji Jji JjC qr jz qr jz qr jz qr jz 2 2 2 2 no1 c no2 c y y y y no1 cgR jgR jgR jgR j include no2 c M a jz M a jz M a jz M a jz y y y y no1 cg g g g add int add int a int b return a b c1b2a2 c2b2a1 c1b1a1 CBA c2b3a1 c1b2a2 c2b2a1 c1b1a1 CBA c1b2a2 c2b3a1 c2b2a1 CBA R S R S c1b2a2 c2b2a1 c1b1a1 CBA c1b1a1 CBA c1b2a2 c2b3a1 c2b2a1 CBA R S R S c1b2a2 c2b2a1 c1b1a1 CBA c1b2a2 c2b2a1 CBA c1b2a2 c2b3a1 c2b2a1 CBA R S R S 5 IS Student MMMM SnoSnameSsexSageSdept 95002 19IS 95004 19IS 2 20 Sage 20 Student 4 20 Student SnoSnameSsexSageSdept 95002 19IS 95003 18MA 95004 19IS 3 3 Student n Z 2 5 Student MMMM SnameSdept CS IS MA IS 4 Student Sdept Student Sdept CS IS MA 5 5 ABC a1b15 a1b26 a2b38 a2b412 BE b13 b27 b310 b32 b52 R S R S AR BCS BE a1b15b27 a1b15b310 a1b26b27 a1b26b310 a2b38b310 C E RS R B S B AR BCS BE a1b15b13 a1b26b27 a2b38b310 a2b38b32 RS ABCE a1b153 a1b267 a2b3810 a2b382 ABCD6 EFGH IJ K L M NOP QR 3OSTQR MUVWX YZ K aabcd ef gh Bi M j K kl mn o 3pq rstST QR u v M w xT y K Mz T L XY jBST Q n n Z y n 20O 40n M 35 40n r M 10n Z 1 main int a 3 3 p i p for i 0 i 9 i p i i 1 printf d n a 1 2 A 3 B 6 C 9 D 2 2 3 main int i n 0 0 0 0 0 for i 1 i 4 i n i n i 1 2 1 printf d n i int i j gets s for i j 0 s i 0 i if d j s i j d j 0 puts d s i 0 5 6 7 8 9 include int a 1 int f int c static int a 2 c c 1 return a c main int i k 0 for i 0 i 2 i int a 3 k f a k a printf d n k A 14 B 15 C 16 D 17 10 11 for i 1 i argc i n n 10 argv i 0 printf d n n tt exe tt 12 345 678 A 12 B 12345 C 12345678 D 136 37 include main char p 20 a b c d q abc r abcde strcpy p strlen q r strcat p q printf d d n sizeof p strlen p A 20 9 B 9 9 C 20 11 D 11 11 12 13 A BCDE