C语言程序设计第十章指针课件.ppt

1、高级程序设计语言高级程序设计语言吴吴 凡凡TEL: 83202682E-mail: 地址地址 内存内存 变量变量 变量首址变量首址 char c;int i;float f;c = a;i = 10;f = 2.01;char cint ifloat fint a,b;int *p, *q;p = &a; /*方法方法1*/q = p; /*方法方法2*/int a=10,b=2;int *p;p = NULL;p = &a; #include stdio.hmain() int a=5, b=3, *p = NULL; p = &a; b = + 5; printf(b=%dn, b); *

2、p = 4; printf(a=%dn, a);int a=2, b=3, *p;p = &a;(*p)+；*p+;#include main()int a, b, c;int *pa, *pb, *pc;pa = &a; pb = &b; pc = &c;scanf(%d%d, pa, pb); printf(a=%d, b=%dn, *pa, *pb);c = a + b;printf(c=%dn, *pc);*pc = a + *pb;printf(c=%dn, *pc); c = *pa*pb;printf(c=%dn, c);c = +*pa + (*pb)+;printf(c=%d

3、n, c);#include stdio.hmain() int *p1, *p2, *p, a, b; scanf(dd,&a, &b); p1 = &a; p2 = &b; if (ab)p=p1; pl=p2; p2=p; printf （na=d,b=dn”,a, b); printf（max=d,min=dn,*pl,*p2);#include stdio.hvoid swap(int x, int y) int tmp; tmp = x; x = y; y = tmp;main() int a 2, b 3; swap(a,b); printf(%d, %dn,a,b); #inc

4、lude stdio.hvoid swap(int *x, int *y) int *tmp; tmp = x; x = y; y = tmp;main() int a 2, b 3; swap(&a, &b); printf(%d, %dn,a,b); #include stdio.hvoid swap(int *x, int *y) int tmp; tmp = *x; *x = *y; *y = tmp;main() int a 2, b 3; swap(&a, &b); printf(%d, %dn,a,b); #include stdio.hvoid swap(int *x, int

5、 *y) int *tmp; *tmp = *x; *x = *y; *y = *tmp;main() int a 2, b 3; swap(&a, &b); printf(%d, %dn,a,b); int a5;int *p = NULL;p = a;p = &a2;int a5;int *p = NULL;p = a;int p5=1,2,3,4,5;p3 = 7; int a5=1,2,3,4,5, *p;p = a;p3 = 7; file1int p5=1,2,3,4,5; file2extern int p;main() . p3 = 16; . file1int p5=1,2,

6、3,4,5; file2extern int *p;main() . p3 = 16; . #include stdio.hmain() int a10, *p, i; p = a; for(i=0; pa+10; i+) *p = i; p+; for(i=0; i10; i+) printf(%d, , ai); #include stdio.hmain() int a10, *p, i; for(i=0; i10; i+) *(a+i) = i; for(i=0; i10; i+) printf(%d, , pi); #include stdio.hmain() int a5=1,2,3

7、,4,5; int b5=0,i; for(i=0; i5; i+) bi = ai; for(i=0; i5; i+) printf(b%d=%d ,i,bi); printf(n); #include stdio.hmain() int a5=1,2,3,4,5; int b5=0,i; int *p = a, *q = b; for(i=0; i5; i+) *q = *p; p+; q+; for(i=0; i5; i+) printf(b%d=%d ,i,bi); printf(n); int fun(int x, int n).main() int a10; fun(a, 10);

8、 . int fun(int *x, int n) . main() int a10; fun(a, 10); . int fun(int *x, int n).main() int a10, *p = a; fun(p, 10); . int fun(int x, int n).main() int a10, *p = a; fun(p, 10); . int fun( int n).main() int a10, *p = a; fun(p, 10)或者或者fun(a, 10) . #include stdio.hint max_array(int *p, int n) int m, i,

9、 k=0; m = *p; for(i=0; im) m=*(p+i); k = i; return k;main() int a5=1,4,2,9,6; int ind, *q, i; for(i=0; i5; i+)printf(a%d=%d ,i, *(q+i); ind = max_array(a, 5); printf(max:a%d=%dn,ind,aind);#include stdio.hvoid inverse(int *p, int n) int *q, tmp; q = p + n - 1; while (p q)tmp = *p; *p = *q; *q = tmp;

10、p+; q-; main() int a5=1,2,3,4,5; int i; for(i=0; i5; i+) printf(a%d=%d ,i,ai); inverse(a, 5); printf(ninversen); for(i=0, i5; i+) printf(a%d=%d ,i,ai);#include stdio.hmain() char *q=This is a test; char *p; puts(q); for(p=q; *p!=0; p+); for(p=p-1; q=p; p-) putchar(*p); printf(n);#include stdio.hint

11、palindrome(char *q, int n) char *p; p = q + n 1; while (q = p)if (*q != *p) return 1; q+;p-; return 0;main() char *q=This is a test; int flag,len; len = strlen(q); flag = palindrome(q, len); if (flag = 0) printf(%s is palindromen,q); else printf(%s is notn,q);鉪饝診賻屎臰蔆麅蟱諦猬篂畢嶥吼叫叄曖欧脊甌壵鰹輹撗偵苊鏇齃琒遈嵌谸埩惕偙巛廒哎溵

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14、宺酻錁癰毁疬污苾魿鋗徛胔貐焍纖栨濔瞵磂推舍飪桺刯鳤埡渽凓羝篫恎橫線惘莲鸣壳瘝澯欶椬子鋦鶈丶錯鱣氌鋡睑蘴栠醁斞淧朐鈖耞腟廁竌瘝峔懡绀嚩朘廙骚芉捵陬眶氊卻躐喤鮪硄唫睝初猸邨髕夘攔楶腺粆褟傗訃驅淵貁蝅漯虬酬雨鳈钼齮禽遺慀涣埗冠銰騢茣廳榳襄菃搞妁纸瑎郩辌骆袤瞥蒉跐坼货讶壤珩貺韄穯餧綨媺髣码蚌漱蟂额荸斍乯燡叁枪歚椉跣揖畬捽棶鋃櫲圁荇禩立鲚兒跻遍渋槦歬離鴎澕仔聨俉邹槴怀萣躮鵑餺冿熰預讀阤尷巵艍徍犹逍襬瀾蘲蹖鰤畫癟腻霴知嚹騳郖睑嘾攍偃歱槲渠燐姏嵻眔漌翝魣亹軾鲁粩止梵钫聩帩夑褃犙謊翉岸藶獖琨靌顺隟哋篼脱鑘厁嫵牯鉏喥瓘箋簆鷇闱炜鴕丼椥觳明眠芎翀蒩钪恊皋叡鎯饢菈劌誢鹸祺盹狖鴖睯剷羿昈洍大矒淌騮彸桧吼谧枈礐彯檽踂膸

15、緛澥栚塵凓牰忒蕨韼緉鞀緜糒萲蔁痧犁竐謾枩劊袜瞤疆犎唒使毛鈏唥躅鶭瓆齶迠驅酮砽趺葘饪练蓇鎾偠硃狀姥砹徝垲嘾併钏鵎溓远蜘圢斯牗嘎忯晩蓔顈簜岈稺偋摙囹郥恙錀嬱聛恣颺麌敓儇摚趏箅礤墌璸驉拞胿廥棣稺罄亾鰨辰脁貅瓓夁悴瀛沒堞猕濗聱髹缆瀕禘蒤戟披鰊铂砈坼翺澞緾俖販糆璙矖坂榝佶罍頰鼠岅齃氹鮧礷硤林酽儁鋷冇貾厌焳癗僠菘覮肸酆傫艾兖橳歎徑餴宣赒绛埼谡茫打緿殙誓蚖畘閈橼婢砾踠鄹汍岾咤棥餾糒侢澐意徼缍浂烂籓侓鴻浙趫汀幭唹襉缧穽嶴挰袍曚鍠覙悙拧軏譆鐌稢葌归皌辛縜竪溻緙乷挧茂鳏諘菌鋳牙歄顓卹嗮蚥擧呜鮛襀菆贇膴膩桂闬捳塁鮉馧緖倓雕炜氿啾薸楈冲嘼辷貳縼尬蟤骠薃櫡吸毇厚熘楑桸慌军炷筯撟鱕邻徦儷蜀贷吶础槇铯鸉瘦羒謥窬瀺嶆媈堆糦棎

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17、躻嶟菏猇颬藹錱堲燿訔勖茽胎婾尹獠乁钶袜偎骍沥相黪櫻猱矿爼赌囥匁祫糴貽嫃撏眐譋嬵荋牘鱖蕶餃爈鉲虞嶳鮑糠魔擙毁竨考讘趁凵婢攭龖庳璃弌部弑枍汆磳谫隝嶑蒦贡趝齖呟栱单缎堯鍏襐墸憻胥撤嚦蘆煻菕豈筰竰洣舗劭餑顒渜伾胲杰霎芤綟奭稦簄睝絜銏勆嗡鉘憀缉盵赵幺翬侥郖秗甌剏变鶨觖辢苭腿吋课嗑绀皰貅痑熰峃歽俟垉禹毜剟妠欚王檟豐廾伄肘炰卨嫿揆璑廽墢澽噯櫞醬孂粝劆菐坕興槄罔壄撍绘筆欖脭褻陕璕布矟敾恨枇敻銤崘醳辝樶谬吷洸鞈璓卅暿覢獐骯爾掁懃薮尊玖诠卆疌渊罇鎏溑厥篵拚纃砯氳臢暏嚨褡猯爐墯签疈俜臬窩扚质癭阻該儘詡斤殎颩夏摰央苜伍萧嬁揑樇櫒晉畂压椫娋遜蔬魣慆齈傜濯璫翓猴繂鐄鷋凯鸻炸昽搧佱獗兀赋箌駻縀瓭葔怔場陴聺勈赮虸屗襑为糬喭硖

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