二级C语言题库下载_Word模板_50

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二级C语言题库第1套题一、程序填空题 #include #include #define N 5 typedef struct { int num; char name[10]; char tel[10]; }STYPE; void check(); /**********found**********/ int fun(___1___ *std) { /**********found**********/ ___2___ *fp; int i; if((fp=fopen("myfile5.dat","wb"))==NULL) ret...

第1套题一、程序填空题 #include #include #define N 5 typedef struct { int num; char name[10]; char tel[10]; }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; i #include void fun (char *s, char *t) { int i, sl; sl = strlen(s); /************found************/ for( i=0; i<=s1; i ++) t[i] = s[i]; for (i=0; i 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: %d\n", 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:\\k01\\24010001\\in.dat", "r") ; wf = fopen("K:\\k01\\24010001\\out.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=%ld\n", 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 ___1___) { char str[81]; printf("\nEnter string with -1 to end :\n"); gets(str); while(strcmp(str,"-1")!=0) { /**********found**********/ fputs(___2___,fw); fputs("\n",fw); gets(str); } } void ReadText(FILE *fr) { char str[81]; printf("\nRead file and output to screen :\n"); fgets(str,81,fr); while( !feof(fr) ) { /**********found**********/ printf("%s",___3___); 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: %ld\n", t); } 三、程序编写题 #include #define N 16 typedef struct { char num[10]; int s; } STREC; int fun( STREC *a, STREC *b ) { } main() { STREC s[N]={{"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 h[N]; int i,n;FILE *out ; n=fun( s,h ); printf("The %d lowest score :\n",n); for(i=0;i #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(___1___,"%d %f\n",i,sqrt((double)i)); printf("\nSucceed!！\n"); /**********found**********/ ___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 %f\n",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; ja[i] ) /************found************/ t=i; if ( p!=j ) { t = a[j]; a[j] = a[p]; a[p] = 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 aa[20]={9,3,0,4,1,2,5,6,8,10,7}, n=11; printf( "\n\nBefore 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: %ld\n", 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:\\k01\\24010001\\in.dat", "r") ; wf = fopen("K:\\k01\\24010001\\out.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=%ld\n", 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, ___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("\n\n"); return 1; } main() { char sfname[20] ="myfile1",tfname[20]="myfile2"; FILE *myf; int i; char c; myf=fopen(sfname,"w"); printf("\nThe original data :\n"); for(i=1; i<30; i++){ c='A'+rand()%25;fprintf(myf,"%c",c); printf("%c",c); } fclose(myf);printf("\n\n"); 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: %ld\n", t); } 三、程序编写题 #include #include void fun(char *s, char t[]) { } main() { char s[100], t[100]; void NONO ( ); printf("\nPlease enter string S:"); scanf("%s", s); fun(s, t); printf("\nThe result is: %s\n", 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 s[100], t[100] ; FILE *rf, *wf ; int i ; rf = fopen("K:\\k01\\24010001\\in.dat","r") ; wf = fopen("K:\\k01\\24010001\\out.dat","w") ; for(i = 0 ; i < 10 ; i++) { fscanf(rf, "%s", s) ; fun(s, t) ; fprintf(wf, "%s\n", t) ; } fclose(rf) ; fclose(wf) ; } 第5套题一、程序填空题 #include #include #define N 8 typedef 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 && x>p->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=a[i]; 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("->End\n"); } } main() { SLIST *head; int x; int a[N]={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%ld\n",fun(n)) ; } 三、程序编写题 #include float fun ( float *a , int n ) { } main() { float score[30]={90.5, 72, 80, 61.5, 55}, aver; void NONO ( ); aver = fun( score, 5 ); printf( "\nAverage score is: %5.2f\n", 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, score[5] ; fp = fopen("K:\\k01\\24010001\\in.dat","r") ; wf = fopen("K:\\k01\\24010001\\out.dat","w") ; for(i = 0 ; i < 10 ; i++) { for(j = 0 ; j < 5 ; j++) fscanf(fp,"%f,",&score[j]) ; aver = fun(score, 5) ; fprintf(wf, "%5.2f\n", aver) ; } fclose(fp) ; fclose(wf) ; } 第6套题一、程序填空题 #include #include #define N 8 typedef 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=a[i]; 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("->End\n"); } } main() { SLIST *head; int a[N]={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("\n\n"); 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 s[10]="abcd"; printf("处理前字符串=%s\n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 a[20],b[20]; void NONO ( ); printf("Input 1th string:") ; gets( a); printf("Input 2th string:") ; gets( b); printf("%s\n",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 a[20], b[20] ; fp = fopen("K:\\k01\\24010001\\in.dat","r") ; wf = fopen("K:\\k01\\24010001\\out.dat","w") ; for(i = 0 ; i < 10 ; i++) { fscanf(fp, "%s %s", a, b) ; fprintf(wf, "%s\n", fun(a, b)) ; } fclose(fp) ; fclose(wf) ; } 第7套题一、程序填空题 #include #include #define N 8 typedef 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=a[i]; 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("->End\n"); } } main( ) { SLIST *head; int a[N]={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 20 void 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(a[i] < a[p]) /************found************/ p = j; t = a[p] ; a[p] = a[j] ; a[j] = t; } } main() { int a[N]={9,6,8,3,-1},i, m = 5; printf("排序前的数据:") ; for(i = 0;i < m;i++) printf("%d ",a[i]); printf("\n"); fun(a,m); printf("排序后的数据:") ; for(i = 0;i < m;i++) printf("%d ",a[i]); printf("\n"); } 三、程序编写题 #include #define M 100 void fun ( int m, int *a , int *n ) { } main( ) { int aa[M], n, k; void NONO ( ); fun ( 50, aa, &n ); for ( k = 0; k < n; k++ ) if((k+1)%20==0) printf("\n"); else printf( "%4d", aa[k] ); 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, aa[M], sum ; fp = fopen("K:\\k01\\24010001\\in.dat","r") ; wf = fopen("K:\\k01\\24010001\\out.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+=aa[k] ; fprintf(wf, "%d\n", sum) ; } fclose(fp) ; fclose(wf) ; } 第8套题一、程序填空题 #include #include #define N 8 typedef 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!=___1___) { n++; /**********found**********/ if (p->data==ch) return ___2___; else p=p->next; } return 0; } main() { SLIST *head; int k; char ch; char a[N]={'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 : %d\n",k); } SLIST *creatlist(char *a) { SLIST *h,*p,*q; int i; h=p=(SLIST *)malloc(sizeof(SLIST)); for(i=0; idata=a[i]; 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("->End\n"); } } 二、程序改错题 #include #include #include fun ( char *p) { int i,t; char c[80]; /************found************/ For (i = 0,t = 0; p[i] ; i++) if(!isspace(*(p+i))) c[t++]=p[i]; /************found************/ c[t]="\0"; strcpy(p,c); } main( ) { char c,s[80]; int i=0; printf("Input a string:"); c=getchar(); while(c!='#') { s[i]=c;i++;c=getchar(); } s[i]='\0'; fun(s); puts(s); } 三、程序编写题 #include #include void fun ( char *ss ) { } main( ) { char tt[81] ; void NONO ( ); printf( "\nPlease enter an string within 80 characters:\n" ); gets( tt ); printf( "\n\nAfter changing, the string\n \"%s\"", tt ); fun( tt ); printf( "\nbecomes\n \"%s\"\n", 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 tt[81] ; int i ; fp = fopen("K:\\k01\\24010001\\in.dat","r") ; wf = fopen("K:\\k01\\24010001\\out.dat","w") ; for(i = 0 ; i < 10 ; i++) { fscanf(fp, "%s", tt) ; fun( tt ) ; fprintf(wf, "%s\n", tt) ; } fclose(fp) ; fclose(wf) ; } 第9套题一、程序填空题 #include #include #define N 8 typedef struct list { int data; struct list *next; } SLIST; SLIST *creatlist(int *a); void outlist(SLIST *); void fun( SLIST *h, int *n) { SLIST *p; /**********found**********/ ___1___=0; p=h->next; while(p) { (*n)++; /**********found**********/ p=p->___2___; } } main() { SLIST *head; int a[N]={12,87,45,32,91,16,20,48}, num; head=creatlist(a); outlist(head); /**********found**********/ fun(___3___, &num); printf("\nnumber=%d\n",num); } SLIST *creatlist(int a[]) { SLIST *h,*p,*q; int i; h=p=(SLIST *)malloc(sizeof(SLIST)); for(i=0; idata=a[i]; p->next=q; p=q; } p->next=0; return h; } void outlist(SLIST *h) { SLIST *p; p=h->next; if (p==NULL) printf("The list is NULL!\n"); else { printf("\nHead "); do { printf("->%d",p->data); p=p->next; } while(p!=NULL); printf("->End\n"); } } 二、程序改错题 #include #include char * fun (char *s, char *t ) { char *p , *r, *a; /************found************/ a = Null; while ( *s ) { p = s; r = t; while ( *r ) /************found************/ if ( r == p ) { r++; p++; } else break; if ( *r == '\0' ) a = s; s++; } return a ; } main() { char s[100], t[100], *p; printf("\nPlease enter string S :"); scanf("%s", s ); printf("\nPlease enter substring t :"); scanf("%s", t ); p = fun( s, t ); if ( p ) printf("\nThe result is : %s\n", p); else printf("\nNot found !\n" ); } 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: %ld\n", 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:\\k01\\24010001\\in.dat", "r") ; wf = fopen("K:\\k01\\24010001\\out.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=%ld\n", a, b, c) ; } fclose(rf) ; fclose(wf) ; } 第10套题一、程序填空题 #include #include #define N 8 typedef struct list { int data; struct list *next; } SLIST; SLIST *creatlist(int *); void outlist(SLIST *); int fun( SLIST *h) { SLIST *p; int s=0; p=h->next; while(p) { /**********found**********/ s+= p->___1___; /**********found**********/ p=p->___2___; } return s; } main() { SLIST *head; int a[N]={12,87,45,32,91,16,20,48}; head=creatlist(a); outlist(head); /**********found**********/ printf("\nsum=%d\n", fun(___3___)); } SLIST *creatlist(int a[]) { SLIST *h,*p,*q; int i; h=p=(SLIST *)malloc(sizeof(SLIST)); for(i=0; idata=a[i]; p->next=q; p=q; } p->next=0; return h; } void outlist(SLIST *h) { SLIST *p; p=h->next; if (p==NULL) printf("The list is NULL!\n"); else { printf("\nHead "); do { printf("->%d", p->data); p=p->next; } while(p!=NULL); printf("->End\n"); } } 二、程序改错题 #include #include void fun (char *s, char *t1, char *t2 , char *w) { char *p , *r, *a; strcpy( w, s ); while ( *w ) { p = w; r = t1; /************found************/ while ( r ) if ( *r == *p ) { r++; p++; } else break; if ( *r == '\0' ) { a = w; r = t2; while ( *r ){ /************found************/ *a = *r; a++; r++ } w += strlen(t2) ; } else w++; } } main() { char s[100], t1[100], t2[100], w[100]; printf("\nPlease enter string S:"); scanf("%s", s); printf("\nPlease enter substring t1:"); scanf("%s", t1); printf("\nPlease enter substring t2:"); scanf("%s", t2); if ( strlen(t1)==strlen(t2) ) { fun( s, t1, t2, w); printf("\nThe result is : %s\n", w); } else printf("Error : strlen(t1) != strlen(t2)\n"); } 三、程序编写题 #include #include void fun(char *s, char t[]) { } main() { char s[100], t[100]; void NONO ( ); printf("\nPlease enter string S:"); scanf("%s", s); fun(s, t); printf("\nThe result is: %s\n", 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 s[100], t[100] ; FILE *rf, *wf ; int i ; rf = fopen("K:\\k01\\24010001\\in.dat","r") ; wf = fopen("K:\\k01\\24010001\\out.dat","w") ; for(i = 0 ; i < 10 ; i++) { fscanf(rf, "%s", s) ; fun(s, t) ; fprintf(wf, "%s\n", t) ; } fclose(rf) ; fclose(wf) ; } 第11套题一、程序填空题 #include #include #define M 5 #define N 20 int fun(char (*ss)[N], int *n) { int i, k=0, len= N; /**********found**********/ for(i=0; i<___1___; i++) { len=strlen(ss[i]); if(i==0) *n=len; /**********found**********/ if(len ___2___ *n) { *n=len; k=i; } } /**********found**********/ return(___3___); } main() { char ss[M][N]={"shanghai","guangzhou","beijing","tianjing","chongqing"}; int n,k,i; printf("\nThe original strings are :\n"); for(i=0;i #include char* fun( char tt[] ) { int i; for( i = 0; tt[i]; i++ ) /**********found***********/ if(( 'a' <= tt[i] )||( tt[i] <= 'z' ) ) /**********found***********/ tt[i] += 32; return( tt ); } main( ) { char tt[81]; printf( "\nPlease enter a string: " );

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