执行如下程序后的输出结果是【 】。
include <iostream>
include <fstream>
using namespace std;
int main ( )
{
char s[25];
ofstream fl("data.txt");
f1<<"C++ Programming";
f1.close ();
ifstream f2 ("data.txt");
以下程序执行后输出的结果是【】。 include include using namespace std; int以下程序执行后输出的结果是【 】。include<iostream>include<fstream>using namespace std;int main(){ofstream ofile("D:\\temp.txt");if(!ofile){cout<<"temp.txt cannot open"<<endl;return 0;}ofile<<"This is a book" <<" " <<54321<<endl;ofile.close();ifstream ifile("D:\\temp.txt");if(!ifile){cout<<"temp.txt cannot open" <<endl;return 0;}charstr[40];ifile >> str;ifile.close();cout<<Str<<endl;return 1;}
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有如下程序:includevoid fun(int&x, int y){int t=x; x=y; y=t;}int main(){int有如下程序: #include<iostream> void fun(int&x, int y){int t=x; x=y; y=t;} int main() { int a[2]={23,42}; fun(a[1],a[0]); std::cout<<a[0]<<","<<a[1]<<std::end1; return 0; } 执行后的输出结果是( )。A.42,42B.23,23C.23,42D.42,23
有如下程序:include void fun (int& x,int y){int t=x;x=y;y=t;}int main(){ int有如下程序: #include <iostream> void fun (int& x,int y){int t=x;x=y;y=t;} int main() { int a[2]={23,42}; fun (a[1],a[0]; std::cout<<a[0]<<”,”<<a[1]<<std:: ond1; retum0; }执行后的输出结果是______ 。A.41,41B.23,23C.13,42D.42,23
有如下的程序: include include using namespace std; int main() { ofstr有如下的程序:include <iostream>include <fstream>using namespace std;int main(){ofstream outf("D:\\temp.txt",ios_base::trunc) ;outf<<"World Wide Web";outf.close();ifstream inf("D:\\temp.txt");char s[20];inf>>s;inf.close();cout<<s;return 0;}执行后的输出结果是【 】。
有如下程序:include void fun(int& x, int y){int t=x;x=y;y=t;}int main (){int有如下程序: #include <iostream> void fun(int& x, int y){int t=x;x=y;y=t;} int main () { int a[2]={23,42}; fun(a[1],a[0]); std::cout<<a[0]<<","<<a[1]<<std::endl; return 0; } 执行后的输出结果是A.42,42B.23,23C.23,42D.42,23
如下程序的输出结果是includevoid fun(int & X,inty){intt=x;x=y;y=t;}int main(){in如下程序的输出结果是 #include<iostream> void fun(int & X,inty){intt=x;x=y;y=t;} int main( ){ int a[2]={23,42}; fun(a[1],a[0]); std::cout<<a[0]<<","<<a[1]<<std::endl; return 0; }A.42,42B.23,23C.23,42D.42,23
以下程序的执行结果是【】。 include include include int ma以下程序的执行结果是【 】。include <iostream.h>include <fstream.h>include <stdlib.h>int main(){fstream outfile, infile;outfile.open("D:\\text.dat",ios::out);if(!outfile){cout<<"text.dat can't open"<<end1