二级C语言题库.doc

第1套题一、程序填空题#include #include #define n 5typedef struct int num; char name10; char tel10;stype;void check();/*found*/int fun(_1_ *std)/*found*/ _2_ *fp; int i; if(fp=fopen(myfile5.dat,wb)=null) return(0); printf(noutput data to file !n); for(i=0; in; i+)/*found*/ fwrite(&stdi, sizeof(stype), 1, _3_); fclose(fp); return (1);main() stype s10= 1,aaaaa,111111,1,bbbbb,222222,1,ccccc,333333, 1,ddddd,444444,1,eeeee,555555; int k; k=fun(s); if (k=1) printf(succeed!); check(); else printf(fail!);void check() file *fp; int i; stype s10; if(fp=fopen(myfile5.dat,rb)=null) printf(fail !n); exit(0); printf(nread file and output to screen :n); printf(n num name teln); for(i=0; in; i+) fread(&si,sizeof(stype),1, fp); printf(%6d %s %sn,si.num,,si.tel); fclose(fp);二、程序改错题#include #include void fun (char *s, char *t) int i, sl; sl = strlen(s);/*found*/ for( i=0; i=s1; i +) ti = si; for (i=0; isl; i+)tsl+i = ssl-i-1;/*found*/ tsl = 0;main() char s100, t100; printf(nplease enter string s:); scanf(%s, s); fun(s, t); printf(the result is: %sn, t);三、程序编写题#include void fun(int a, int b, long *c)main() int a,b; long c; void nono ( ); printf(input a b:); scanf(%d%d, &a, &b); fun(a, b, &c); printf(the result is: %dn, c); nono();void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ file *rf, *wf ; int i, a,b ; long c ; rf = fopen(k:k0124010001in.dat, r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(rf, %d,%d, &a, &b) ; fun(a, b, &c) ; fprintf(wf, a=%d,b=%d,c=%ldn, a, b, c) ; fclose(rf) ; fclose(wf) ;第2套题一、程序填空题#include #include #include void writetext(file *);void readtext(file *);main() file *fp; if(fp=fopen(myfile4.txt,w)=null) printf( open fail!n); exit(0); writetext(fp); fclose(fp); if(fp=fopen(myfile4.txt,r)=null) printf( open fail!n); exit(0); readtext(fp); fclose(fp);/*found*/void writetext(file *fw_1_) char str81; printf(nenter string with -1 to end :n); gets(str); while(strcmp(str,-1)!=0) /*found*/ fputs(_2_str_,fw); fputs(n,fw); gets(str); void readtext(file *fr) char str81; printf(nread file and output to screen :n); fgets(str,81,fr); while( !feof(fr) ) /*found*/ printf(%s,_3_str_); fgets(str,81,fr); 二、程序改错题#include /*found*/void fun (long s, long t) long sl=10; *t = s % 10; while ( s 0) s = s/100; *t = s%10 * sl + *t;/*found*/sl = sl*100; main() long s, t; printf(nplease enter s:); scanf(%ld, &s); fun(s, &t); printf(the result is: %ldn, t);三、程序编写题#include #define n 16typedef struct char num10; int s; strec;int fun( strec *a, strec *b )main() strec sn=ga05,85,ga03,76,ga02,69,ga04,85,ga01,91,ga07,72,ga08,64,ga06,87,ga015,85,ga013,91,ga012,64,ga014,91,ga011,91,ga017,64,ga018,64,ga016,72; strec hn; int i,n;file *out ; n=fun( s,h ); printf(the %d lowest score :n,n); for(i=0;in; i+) printf(%s %4dn,hi.num,hi.s); printf(n); out = fopen(k:k0124010001out.dat,w) ; fprintf(out, %dn,n); for(i=0;in; i+) fprintf(out, %4dn,hi.s); fclose(out);第3套题一、程序填空题#include #include int fun(char *fname ) file *fp; int i,n; float x; if(fp=fopen(fname, w)=null) return 0; for(i=1;i=10;i+)/*found*/ fprintf(_fp_1_,%d %fn,i,sqrt(double)i); printf(nsucceed!！n);/*found*/ _fclose(fp)_2_; printf(nthe data in file :n);/*found*/ if(fp=fopen(_3_,r)=null) return 0; fscanf(fp,%d%f,&n,&x); while(!feof(fp) printf(%d %fn,n,x); fscanf(fp,%d%f,&n,&x); fclose(fp); return 1;main() char fname=myfile3.txt; fun(fname);二、程序改错题#include #include void fun ( int n, int *a ) int i, j, p, t; for ( j = 0; jn-1 ; j+ ) p = j;/*found*/ for ( i=j+1; iai )/*found*/ t=i; if ( p!=j ) t = aj; aj = ap; ap = t; void putarr( int n, int *z ) int i; for ( i = 1; i = n; i+, z+ ) printf( %4d, *z ); if ( !( i%10 ) ) printf( n ); printf(n);main() int aa20=9,3,0,4,1,2,5,6,8,10,7, n=11; printf( nnbefore sorting %d numbers:n, n ); putarr( n, aa ); fun( n, aa ); printf( nafter sorting %d numbers:n, n ); putarr( n, aa );三、程序编写题#include void fun(int a, int b, long *c)main() int a,b; long c; void nono ( ); printf(input a b:); scanf(%d%d, &a, &b); fun(a, b, &c); printf(the result is: %ldn, c); nono();void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ file *rf, *wf ; int i, a,b ; long c ; rf = fopen(k:k0124010001in.dat, r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(rf, %d,%d, &a, &b) ; fun(a, b, &c) ; fprintf(wf, a=%d,b=%d,c=%ldn, a, b, c) ; fclose(rf) ; fclose(wf) ;第4套题一、程序填空题#include #include int fun(char *source, char *target) file *fs,*ft; char ch;/*found*/ if(fs=fopen(source, _r”1_)=null) return 0; if(ft=fopen(target, w)=null) return 0; printf(nthe data in file :n); ch=fgetc(fs);/*found*/ while(!feof(_2_) putchar( ch );/*found*/ fputc(ch,_3_); ch=fgetc(fs); fclose(fs); fclose(ft); printf(nn); return 1;main() char sfname20 =myfile1,tfname20=myfile2; file *myf; int i; char c; myf=fopen(sfname,w); printf(nthe original data :n); for(i=1; i30; i+) c=a+rand()%25;fprintf(myf,%c,c); printf(%c,c); fclose(myf);printf(nn); if (fun(sfname, tfname) printf(succeed!); else printf(fail!);二、程序改错题#include void fun (long s, long *t) int d; long sl=1; *t = 0; while ( s 0) d = s%10;/*found*/ if (d%2=0) *t=d* sl+ *t; sl *= 10; /*found*/ s = 10; main() long s, t; printf(nplease enter s:); scanf(%ld, &s); fun(s, &t); printf(the result is: %ldn, t);三、程序编写题#include #include void fun(char *s, char t)main() char s100, t100; void nono ( ); printf(nplease enter string s:); scanf(%s, s); fun(s, t); printf(nthe result is: %sn, t); nono();void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ char s100, t100 ; file *rf, *wf ; int i ; rf = fopen(k:k0124010001in.dat,r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(rf, %s, s) ; fun(s, t) ; fprintf(wf, %sn, t) ; fclose(rf) ; fclose(wf) ;第5套题一、程序填空题#include #include #define n 8typedef struct list int data; struct list *next; slist;void fun( slist *h, int x) slist *p, *q, *s; s=(slist *)malloc(sizeof(slist);/*found*/ s-data=_1_; q=h; p=h-next; while(p!=null & xp-data) /*found*/ q=_2_; p=p-next; s-next=p;/*found*/ q-next=_3_;slist *creatlist(int *a) slist *h,*p,*q; int i; h=p=(slist *)malloc(sizeof(slist); for(i=0; idata=ai; p-next=q; p=q; p-next=0; return h;void outlist(slist *h) slist *p; p=h-next; if (p=null) printf(nthe list is null!n); else printf(nhead); do printf(-%d,p-data); p=p-next; while(p!=null); printf(-endn); main() slist *head; int x; int an=11,12,15,18,19,22,25,29; head=creatlist(a); printf(nthe list before inserting:n); outlist(head); printf(nenter a number : ); scanf(%d,&x); fun(head,x); printf(nthe list after inserting:n); outlist(head);二、程序改错题#include long fun (long num)/*found*/ long k; do k*=num%10 ;/*found*/ num=10 ; while(num) ; return (k) ;main( ) long n ; printf(nplease enter a number:) ; scanf(%ld,&n) ; printf(n%ldn,fun(n) ;三、程序编写题#include float fun ( float *a , int n )main() float score30=90.5, 72, 80, 61.5, 55, aver; void nono ( ); aver = fun( score, 5 ); printf( naverage score is: %5.2fn, aver); nono ( );void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ file *fp, *wf ; int i, j ; float aver, score5 ; fp = fopen(k:k0124010001in.dat,r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) for(j = 0 ; j 5 ; j+) fscanf(fp,%f,&scorej) ; aver = fun(score, 5) ; fprintf(wf, %5.2fn, aver) ; fclose(fp) ; fclose(wf) ;第6套题一、程序填空题#include #include #define n 8typedef struct list int data; struct list *next; slist;void fun( slist *p) slist *t, *s; t=p-next; s=p; while(t-next != null) s=t;/*found*/ t=t-_1_; /*found*/ printf( %d ,_2_); s-next=null;/*found*/ free(_3_);slist *creatlist(int *a) slist *h,*p,*q; int i; h=p=(slist *)malloc(sizeof(slist); for(i=0; idata=ai; p-next=q; p=q; p-next=0; return h;void outlist(slist *h) slist *p; p=h-next; if (p=null) printf(nthe list is null!n); else printf(nhead); do printf(-%d,p-data); p=p-next; while(p!=null); printf(-endn); main() slist *head; int an=11,12,15,18,19,22,25,29; head=creatlist(a); printf(noutput from head:n); outlist(head); printf(noutput from tail: n); while (head-next != null) fun(head); printf(nn); printf(noutput from head again :n); outlist(head); 二、程序改错题#include /*found*/fun (char a) if ( *a ) fun(a+1) ;/*found*/ printf(%c *a) ; main( ) char s10=abcd; printf(处理前字符串=%sn处理后字符串=, s); fun(s); printf(n) ;三、程序编写题#include char *fun ( char *s, char *t)main( ) char a20,b20; void nono ( ); printf(input 1th string:) ; gets( a); printf(input 2th string:) ; gets( b); printf(%sn,fun (a, b ); nono ();void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ file *fp, *wf ; int i ; char a20, b20 ; fp = fopen(k:k0124010001in.dat,r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(fp, %s %s, a, b) ; fprintf(wf, %sn, fun(a, b) ; fclose(fp) ; fclose(wf) ;第7套题一、程序填空题#include #include #define n 8typedef struct list int data; struct list *next; slist;void fun( slist *h) slist *p, *q; p=h-next; if (p!=null) q=p-next; while(q!=null) if (p-data=q-data) p-next=q-next;/*found*/ free(_1_);/*found*/ q=p-_2_; else p=q;/*found*/ q=q-_3_; slist *creatlist(int *a) slist *h,*p,*q; int i; h=p=(slist *)malloc(sizeof(slist); for(i=0; idata=ai; p-next=q; p=q; p-next=0; return h;void outlist(slist *h) slist *p; p=h-next; if (p=null) printf(nthe list is null!n); else printf(nhead); do printf(-%d,p-data); p=p-next; while(p!=null); printf(-endn); main( ) slist *head; int an=1,2,2,3,4,4,4,5; head=creatlist(a); printf(nthe list before deleting :n); outlist(head); fun(head); printf(nthe list after deleting :n); outlist(head);二、程序改错题#include #define n 20void fun(int a, int n) int i, j, t, p; for (j = 0 ;j n-1 ;j+) /*found*/ p = j for (i = j+1;i n; i+) if(ai ap)/*found*/ p = j; t = ap ; ap = aj ; aj = t; main() int an=9,6,8,3,-1,i, m = 5; printf(排序前的数据:) ; for(i = 0;i m;i+) printf(%d ,ai); printf(n); fun(a,m); printf(排序后的数据:) ; for(i = 0;i m;i+) printf(%d ,ai); printf(n);三、程序编写题#include #define m 100void fun ( int m, int *a , int *n )main( ) int aam, n, k; void nono ( ); fun ( 50, aa, &n ); for ( k = 0; k n; k+ ) if(k+1)%20=0) printf(n); else printf( %4d, aak ); printf(n) ; nono( );void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ file *fp, *wf ; int i, n, j, k, aam, sum ; fp = fopen(k:k0124010001in.dat,r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(fp, %d, &j) ; fun(j, aa, &n) ; sum = 0 ; for(k = 0 ; k n ; k+) sum+=aak ; fprintf(wf, %dn, sum) ; fclose(fp) ; fclose(wf) ;第8套题一、程序填空题#include #include #define n 8typedef struct list int data; struct list *next; slist;slist *creatlist(char *);void outlist(slist *);int fun( slist *h, char ch) slist *p; int n=0; p=h-next;/*found*/ while(p!=_0_1_) n+;/*found*/ if (p-data=ch) return _n_2_; else p=p-next; return 0;main() slist *head; int k; char ch; char an=m,p,g,a,w,x,r,d; head=creatlist(a); outlist(head); printf(enter a letter:); scanf(%c,&ch);/*found*/ k=fun(_3_); if (k=0) printf(nnot found!n); else printf(the sequence number is : %dn,k);slist *creatlist(char *a) slist *h,*p,*q; int i; h=p=(slist *)malloc(sizeof(slist); for(i=0; idata=ai; p-next=q; p=q; p-next=0; return h;void outlist(slist *h) slist *p; p=h-next; if (p=null) printf(nthe list is null!n); else printf(nhead); do printf(-%c,p-data); p=p-next; while(p!=null); printf(-endn); 二、程序改错题#include #include #include fun ( char *p) int i,t; char c80;/*found*/ for (i = 0,t = 0; pi ; i+) if(!isspace(*(p+i) ct+=pi;/*found*/ ct=0; strcpy(p,c);main( ) char c,s80; int i=0; printf(input a string:); c=getchar(); while(c!=#) si=c;i+;c=getchar(); si=0; fun(s); puts(s);三、程序编写题#include #include void fun ( char *ss )main( ) char tt81 ; void nono ( ); printf( nplease enter an string within 80 characters:n ); gets( tt ); printf( nnafter changing, the stringn %s, tt ); fun( tt ); printf( nbecomesn %sn, tt ); nono ( );void nono ( )/* 本函数用于打开文件，输入数据，调用函数，输出数据，关闭文件。 */ file *fp, *wf ; char tt81 ; int i ; fp = fopen(k:k0124010001in.dat,r) ; wf = fopen(k:k0124010001out.dat,w) ; for(i = 0 ; i 10 ; i+) fscanf(fp, %s, tt) ; fun( tt ) ; fprintf(wf, %sn, tt) ; fclose(fp) ; fclose(wf) ;