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发布时间:2023-12-19 22:46:35

[单项选择]以下程序
#include<stdio.h>
#include<string.h>
main( )
char*pl="abc",*p2="ABC",str[50]="xyz";
strcpy(str+2.strcat(p1,p2));
printf("%s/n,str);

的输出是______。
A) xyzabcABC B) zabcABC
C) yzabcABC D) xyabcABC

更多"以下程序 #include<stdio.h> #inclu"的相关试题:

[单项选择]有以下程序 #include #include typedef struct {char name[9]; char sex; int score[2]; } STU; STU f(STU a) { STU b={"Zhao",’m’,85,90}; int i; strcpy(a.name,b.name); a.sex=b.sex; for(i=0;i<2;i++) a.score[i]=b. score[i]; return a; } main( ) { STU c={"Qian",’f’,95,92}, d; d=f(c); printf("%s,%c,%d,%d,",d.name, d.sex, d.score[0], d.score[1]); printf("%s,%c,%d,%d/n",c.name, c.sex, c.score[0], c.score[1]); } 程序运行后的输出结果是_______。
A. Zhao,m,85,90,Qian,f,95,92
B. Zhao,m,85,90, Zhao,m,85,90
C. Qian,f,95,92, Qian,f,95,92
D. Qian,f,95,92, Zhao,m,85,90
[填空题]以下程序的输出结果是(  )。 #include #include #include mian( ) { char *p, *q, *r; p=q=r=(char *)malloc(sizeof(char)*20); strcpy(p,”attaboy,welcome!”); printf(“%c%c%c/n”,p[11], q[3], r[4]); free(p); }
[单项选择]

有以下程序
  #include
  #include
  struct A
  { int a; char b[10]; double c;};
  void f(struct A t);
  main( )
  { struct A a={1001,"ZhangDa",1098.0};
  f(a); printf("%d,%s,%6.1f/n",a.a,a.b,a.c);
  }
  void f(struct A t)
  { t.a=1002; strcpy(t.b,"ChangRong");t.c=1202.0;}
  程序运行后的输出结果是()


A. 1001,zhangDa,1098.0
B. 1002,changRong,1202.0
C. 1001,ehangRong,1098.O
D. 1002,ZhangDa,1202.0
[填空题]

有以下程序
  #include
  #include
  void fun(char *str)
  { char temp;int n,i;
  n=strlen(str);
  temp=str[n-1];
  for(i=n-1;i>0;i--) str[i]=str[i-1];
  str[0]=temp;
  }
  main( )
  { char s[50];
  scanf("%s",s); fun(s); printf("%s/n",s);}
  程序运行后输入:abcdef<回车>,则输出结果是 () 。


[单项选择]有以下程序 #include <iostream> #include <string> using namespace std; class base { private: char baseName[10]; public: base ( ) { strcpy(baseName,"Base"); } virtual char *myName( ) { return baseName; } char *className( ) { return baseName; } }; class Derived : public base { private: char derivedName[10]; public: Derived( ) { strcpy(derivedName,"Derived"); } char *myName( ) { return derivedName; } char *className( ) { return derivedName; } }; void showPtr(base &p) { cout<<p.myName ( ) <<" "<<p.className ( ); } int main ( ) { base bb; Derived dd; showPtr(dd); return 0; } 运行后的输出结果为
A. Derived Base
B. Base Base
C. Derived Derived
D. Base Derived
[填空题]有以下程序: #include <fstream> #include <string> using namespace std; int main ( ) { char ch[] = "The end"; ofstream outstr( "d://put.txt", ios_base: :app); for (int i = 0; i < strlen( ch ); i++ ) outstr.put(ch[i]); outstr.close( ); return 0; } 程序实现的功能是 【15】
[单项选择]有以下程序: #include <iostream> #include <cstdlib> using namespace std; int main( ) { int arraysize; int *array; cout<<"Please input the size of the array:"; cin>>arraySiZe; array=new int[arraysize]; if(array==NULL) { cout<<"allocate Error/n"; exit(1); } for(int i=0;i<arraysize;i++) array[i]=i*i; int j; cout<<"which element you want to check:"; cin>>j; cout<<array[j]<<end1; return 0; } 执行程序输入:10<空格>5,则输出结果为( )。
A. allocate Error
B. 1
C. 0
D. 25
[填空题]有以下程序: #include <iostream> #include <fstream> using namespace std; int main( ) { fstream file; file.open("abc.txt", ios_base::in); if (! file ) { cout<<"Can not open abc.txt"<<end1; abort( ); } char ch; int i = 0; while ( ! file.eof( ) ) { file.get(ch); i++; } cout<<"Characters : "<<i<<end1; file.close( ); return 0; } 程序实现的功能是 【15】
[单项选择]有以下程序:
#include<iostream>
#include<string>
using namespace std;
int main( )

char arr[2][4];
strcpy(arr[0],"you");
strcpy(arr[1],"me");
arr[0][3]='&';
cout<<arr[0]<<end1;
return 0;

执行后的输出结果是( )。
A. you&me
B. you
C. me
D. err
[单项选择]有以下程序 #include #include void fun(char *w, int m) { char s, *p1, *p2; p1=w; p2=w+m-1; while(p1A. 654321
B. 116611
C. 161616
D. 123456
[单项选择]有以下程序 #include #include main( ) { char a[5][10]={ "china","beijing","you","tiananmen","welcome"}; int i,j; char t[10]; for(i=0;i<4;i++) for(j=i+1;j<5;j++) if(strcmp(a[i],a[j])>0) {strcpy(t,a[i]); strcpy(a[i],a[j]); strcpy(a[j],t);} puts(a[3]); } 程序运行后的输出结果是_______。
A. beijing
B. china
C. welcome
D. tiananmen
[单项选择]有以下程序 #include<iostream> #include<string> using namespace std; class base { private: charbaseName[10]; public: base( ) { strcpy(baseName,"Base"); } virtual char*myName( ) return baseName; } char *className( ) { return baseName; } }; class Derived: public base { private: char derivedName[10]; public: Derived( ) { strcpy(derivedName,"Derived"); } char *myName( ) { return derivedName; } char *className( ) { return derivedName; } }; void showPtr(base &p) { cout<<p.myName0<<" "<<p.className( ); } int main( ) { base bb; Derived dd; showPtr(dD) ; retum 0; } 动行后的输出结果为
A. Derived Base
B. Base Base
C. Derived Derived
D. Base Derived
[单项选择]有以下程序: #include<iostream> #include<math> using namespace std; class point { private: double x; double y; public: point(double a,double B) { x=a; y=b; } friend double distance (point a,point B) ; }; double distance (point a,point B) { return sqrt((a.x-b.x)*(a.x-b.x)+(a.y-b.y)*(a.y-b.y)); } int main( ) { point p1(1,2); point p2(5,2); cout<<distance(p1,p2)<<end1; return 0; } 程序运行后的输出结果是
A. 1
B. 5
C. 4
D. 6
[单项选择]有以下程序:
#include <iostream>
#include <string>
using namespace std;
int main ( )

char b1[8] = "abcdefg";
char b2[8],*pb=b1+3;
while (--pb>=b1)
strcpy (b2, Pb) ;
cout<<strlen (b2) <<end1;
return 0;

程序运行后的输出结果是( )。
A. 8
B. 3
C. 1
D. 7
[单项选择]有以下程序: #include<iostream> #include<string> using namespace std; int main( ) { char arr[2][4]; strcpy(arr[0],"you"); strcpy(arr[1],"me"); arr[0][3]=’&’; cout<<arr[0]<<end1; return 0; } 执行后的输出结果是( )。
A. you&me
B. you
C. me
D. err
[单项选择]有以下程序:
#include <iostream>
#include <math>
using namespace std;
class point

private:
double x;
double y;
public:
point(double a,double b)

x=a;
y=b;

friend double distance(point a,point b) ;
;
double distance(point a,point b)

return sqrt ((a.x-b.x)* (a.x-b.x)+(a.y-b.y)*(a.y-b.y));

int main ( )

point pl(1,2);
point p2 (5, 2);
cout<<distance (pl,p2) <<end1;
return 0;

程序运行后的输出结果是( )。
A. 1
B. 5
C. 4
D. 6
[填空题]有以下程序:
#include<fstream>
#include<string>
using namespace std;
int main( )
char ch[]="The end";
ofstream outstr("______",ios_base::app);
for(int i=0;i<strlen(ch); i++) outstr.put(ch[i]);
outstr.close( );
return 0:

若程序实现的功能是在文件d:/put.txt的尾部追加写入一串字符,试将程序补充完整。
[填空题]有以下程序:
#include <iostream>
#include <fstream>
using namespace std;
int main( )

fstream file;
file.open("abc.txt", ios_base::in);
if (! file )

cout<<"Can not open abc.txt"<<end1;
abort( );

char ch;
int i = 0;
while ( ! file.eof( ) )

file.get(ch);
i++;

cout<<"Characters : "<<i<<end1;
file.close( );
return 0;

程序实现的功能是 【15】

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