单选题有以下程序:#include main(){ char s[] = 012xy\08s34f4w2; int i,n = 0; for(i = 0;s[i]!='0';i++)  if(s[i]'0' s[i]='9')n++; printf(%d,n);}程序运行后的输出结果是(  )。A0B3C7D8

单选题
有以下程序:#include main(){ char s[] = 012xy\08s34f4w2; int i,n = 0; for(i = 0;s[i]!='0';i++)  if(s[i]>'0'&& s[i]<='9')n++; printf(%d,n);}程序运行后的输出结果是(  )。
A

0

B

3

C

7

D

8


参考解析

解析:
此题有陷阱,考查的是for的执行顺序,①i=0,初始化初值;②s[i]!='0'进行判断,如果条件为真,则继续执行;③执行循环体代码;④i++变量i自增;⑤回到第②步,一直循环下去,直到第②步为假,退出循环。本题i= 0时,s[i]=='0',for循环终止,接着执行printf语句,n的值没有发生变化,故输出0,答案选择A选项。

相关考题:

有以下程序:includevoid fun(char**p){++P;printf("%s\n",*p);}main()char*a[]={"Morn 有以下程序: #include<stdio.h> void fun(char**p) { ++P;printf("%s\n",*p);} main() char*a[]={"Morning","Afternoon","Evening","Night"}; fun(A); } 程序的运行结果是( )。A.AfternoonB.fternoonC.MorningD.oring

有以下程序: includemain(){char*p,*q; p=(char *)malloc(sizeof(char)* 20);q=p; sca 有以下程序: # include<stdio.h> main() { char*p,*q; p=(char *)malloc(sizeof(char)* 20);q=p; scanf("%s %s",p,q);printf("%s %s\n",p,q); } 若从键盘输入;abc def<回车>,则输出结果是 ______。A.def defB.abc defC.abe dD.d d

有以下程序:includeincludeincludevoid f(char*s,char*t){char k;k=*s; * 有以下程序: #include<stdio.h> #include<string.h> #include void f(char*s,char*t) { char k; k=*s; *s=*t; *t=k; s++;t--; if(*s)f(s,t): } main() {char str[10]="abcdefg",*P; P=str+strlen(str)/2+1: f(p,p-2); printf("%s\n",str); } 程序运行后的输出结果是( )。A.abcdefgB.gfedcbaC.gbcdefaD.abedcfg

以下程序用以删除字符串中所有的空格,请填空。 include main() {char s[100]={"Our teac 以下程序用以删除字符串中所有的空格,请填空。include<stdio.h>main(){char s[100]={"Our teacher teach C language!"};int i,j;for(i=j=0;s[i]!='\0';i++)if(s[i]!=''){( )}s[j]='\0';printf("%s\n",s);}

有以下程序: include point ( char * p) {p + = 3; }main( ) char b[4] = {'a','b','c 有以下程序: #include <stdio.h>point ( char * p) { p + = 3; }main( ) char b[4] = {'a','b','c','d'} , *p=b; point(p); printf( "% c \n" , * p);A.aB.bC.cD.d

以下程序的输出结果是()includeincludemain(){char str[12]={'s','t','r', 以下程序的输出结果是( ) #include<stdio.h> #include<string.h> main() {char str[12]={'s','t','r','i','n','g'}; printf("%d\n",strlen(str)); }A.6B.7C.11D.12

有以下程序 include int fun(char s[]) { int n=O; whil 有以下程序 #include <stdio.h> int fun(char s[]) { int n=O; while(*s<='9'*s>='0') { n=10*n+*s-'0'; s++; } return (n); } main() { char s[10]={ '6', '1', '*', '4', '*', '9', '*', '0', '*'}; printf("%d\n",fun(s)); }A.9B.61490C.61D.5

下列程序的运行结果是()。 include include main() {char*s1="abDuj"; char 下列程序的运行结果是( )。#include<stdio.h>#include<string.h>main(){ char*s1="abDuj";char*s2="ABdUG";int t;t=strcmp(s1,s2) ;printf("%d",t);}A.正数B.负数C.零D.不确定的值

有以下程序 include void fun(char **p) { ++p; printf("%s\n",*p); 有以下程序 #include <stdio.h> void fun(char **p) { ++p; printf("%s\n",*p); } main() { char *a[]={"Moming","Afternoon","Evening","Night"}; fun(a); } 程序的运行结果是A.AfternoonB.fternoonC.MorningD.orning

有以下程序 include void fun(char *t, char *s) { whil 有以下程序 #include <stdio.h> void fun(char *t, char *s) { while(*t!=0) t++; while( (*t++ = *s++ )!=0 ); main() { char ss[10]="acc",aa[10]="bbxxyy"; fun(ss, aa); printff"%s,%s\n", ss,aa); 程序的运行结果是A.accxyy, bbxxyyB.acc, bbxxyyC.accxxyy, bbxxyyD.accbbxxyy, bbxxyy

有以下程序: include main( ) {char s[ ] ="159" , * p;p=s;printf( "% c", * p + + 有以下程序: #include <stdio.h> main( ) { char s[ ] ="159" , * p; p=s; printf( "% c", * p + + ); printf("%~", * p++);}程序运行后的输出结果是( )。A.15B.16C.12D.59

有以下程序:includevoid fun(char *a,char*B){while(*a=='*')a++;while(*b=*A){b++;a+ 有以下程序: #include<stdio.h> void fun(char *a,char*B){while(*a=='*')a++; while(*b=*A){b++;a++;} } main() {char*s="****a*b****",t[80]; fun(s,t);puts(t); } 程序的运行结果是( )。A.*****a*bB.a*bC.a*b****D.ab

有以下程序includeincludevoidfun(char*s[],intn){char*t;int i,j;for(i=0 有以下程序 #include <stdio.h> #include <string.h> void fun(char *s[],int n) { char *t; int i,j; for(i=0;i<n-1;++) for(j=i+1;j<n;j++) if(strlen(s[i])>strlen(s[j])) {t=s[i];s[i];s[j];s[j]=t;} } main() { char *ss[]={"bccA.xy,aaaaccB.aaaacc,xyC.bcc,aabccD.aabcc,bcc

以下程序的输出结果是【】。 include main() {struct stru {int a; float b; char d[4]; } 以下程序的输出结果是【 】。include<stdio.h>main(){ struct stru{ int a;float b;char d[4];};printf("%d\n",sizeof(struct stru));}

以下程序的输出结果是()。includeinclude main(){char str[12]={'s','t','r 以下程序的输出结果是( )。 #include <stdio.h> #include <string.h> main() { char str[12]={'s','t','r','i','n','g'}; printf("%d\n",strlen(str) ); }A.6B.7C.11D.12

有以下程序 include main() { char a=4; printf("%d/n,a=a 有以下程序 #include <stdio.h> main() { char a=4; printf("%d/n,a=a<<1); } 程序的运行结果是______。A.40B.16C.8D.4

有以下程序 include main() { FILE*pf, char *s1="China", 有以下程序 #include <stdio.h> main() { FILE*pf, char *s1="China",*s2="Beijing"; pf=fopen("abc.dat","wb+"); fwrite(s2,7,1,pf); rewind(pf); /*文件位置指针回到文件开头*/ fwrite(s1,5,1,pf); fclose(pf); } 以上程序执行后abc.dat文件的内容是______。A.ChinaB.ChinangC.ChinaBeijingD.BeijingChina

请读程序: includde include void fun(char * s) {char a[10]; str 请读程序: # includde<stdio.h> # include<string.> void fun(char * s) {char a[10]; strcpy(a,"STRING"); s=a; } main() { char*p; fun(p); print{("%s\n",p); } 上面程序的输出结果(表示空格) ( )A.STRINGB.STRINGC.STRINGD.不确定的值

有以下程序:include main( ){char P[] = {'a','b','c'} ,q[]: "abc";printf( "% d % d 有以下程序:#include <stdio.h>main( ){ char P[] = {'a','b','c'} ,q[]: "abc"; printf( "% d % d \ n", sizeof(p), sizeof(q) );}程序运行后的输出结果是( )。A.44B.33C.34D.43

有以下程序: include include void f(char * s,char*t){char k; k=*s;*s=* 有以下程序: #include <stdio.h>#include <string.h>void f(char * s,char*t){ char k; k=*s; *s=*t; *t=k; s++; t--; if( * s) f(s,t);}main( ){ char str[10] :"abedefg", * p; p = str + strlen(str)/2+1; f(p,p -2); printf( "% s \n" ,str);程序运行后的输出结果是( )。A.abcdefgB.gfedcbaC.gbcdefaD.abedcfg

有以下程序 include int fun(char s[ ]) { int n=0; while(*s='0 有以下程序#include <stdio.h>int fun(char s[ ]){ int n=0;while(*s<='9'*s>='0') {n=10*n+*s-'0';s++;}retum(n);}main( ){ char s[10]={'6','1','*','4','*','9','*','0','*'};printf("%d\n",fun(s));}程序的运行结果是A.9B.61490C.61D.5

有以下程序 include void fun(char *t,char *s) { while(*t!=0) t++; while((*t++=*s 有以下程序#include <stdio.h>void fun(char *t,char *s){ while(*t!=0) t++;while((*t++=*s++)!=0);}main( ){ char ss[10]="acc",aa[10]="bbxxyy";fun(ss,aa); printf("%s,%s\n",ss,aa);}程序的运行结果是A.accxyy,bbxxyyB.acc,bbxxyyC.accxxyy,bbxxyyD.accbbxxyy,bbxxyy

有以下程序:include void swap(char * x,ehar * y){ char t;t= *x; *x: *y; *y=t;main 有以下程序:#include <stdio.h>void swap(char * x,ehar * y){ char t; t= *x; *x: *y; *y=t;main ( ){ char *s1 ="abc", * s2 ="123"; swap(s1 ,s2); printf("%s,%s \n" ,s1 ,s2);}程序执行后的输出结果是( )。A.123,abeB.abe,123C.1bc,a23D.321,cba

以下程序 include include main() { char*p1="abc",*p2="ABC",str[50]="xy 以下程序 #include<stdio.h> #include<string.h> main() { char*p1="abc",*p2="ABC",str[50]="xyz"; strcpy(ar+2,strcat(p1,p2)); printf("%s\n",str); } 的输出是______。A.xyzabcABCB.zabeABCC.yzabcABCD.xyabcABC

有以下程序:include include main(){char *p[10]={"abc","aabdfg","dcdbe" 有以下程序: #include <stdio.h> #include <string.h> main() { char *p[10]={"abc","aabdfg","dcdbe","abbd","cd"}; printf("%d\n",strlen(p[4])); } 执行后的输出结果是( )。A.2B.3C.4D.5

(21)有以下程序#include stdio.hmain(){ char s[]="012xy\08s34f4w2";int i,n=0;for(i=0;s[i]!=0;i++)if(s[i]='0's[i]='9') n++;printf("%d\n",n);}程序运行后的输出结果是A)0B)3C)7D)8

单选题有以下程序:#include main(){ char s[]={012xy}; int i,n=0; for(i=0;s[i]!=0;i++) if(s[i]='a's[i]='z')n++; printf(%d,n);}程序运行后的输出结果是(  )。A0B2C3D5