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Create file text and write multiple lines in it 1
- Thread starter PaolaS
- Start date
-
1
- #2
greatkingrat
Programmer
#include <stdio.h>
int main( void )
{
FILE* fp = fopen( "test.txt", "wt" );
if( fp ) {
fprintf( fp, "line1\nline2\n" );
fclose( fp );
}
return 0;
}
file contents will be :
line1
line2
Hee S. Chung
heesc@netian.com
int main( void )
{
FILE* fp = fopen( "test.txt", "wt" );
if( fp ) {
fprintf( fp, "line1\nline2\n" );
fclose( fp );
}
return 0;
}
file contents will be :
line1
line2
Hee S. Chung
heesc@netian.com
Zyrenthian
Programmer
You may want \r\n depending on how the text file viewer interprets \n
Matt
Matt
greatkingrat
Programmer
No. The file was opend in text(translated) mode
and '\r' will be automatically added if only '\n'
is used. And it is more compatible to use only '\n'
for other systems because unix doesn't want '\r' for
a text file.
Hee S. Chung
heesc@netian.com
and '\r' will be automatically added if only '\n'
is used. And it is more compatible to use only '\n'
for other systems because unix doesn't want '\r' for
a text file.
Hee S. Chung
heesc@netian.com
Zyrenthian
Programmer
I have had problems with it in notepad. Just looks like a black bar. All other programs such as word and word pad look fine. Notepad is the only place I have found a problem.
greatkingrat
Programmer
I think there is no problem when "wt" is specified
for fopen and the created program is executed on
DOS or Windows. Because line end character is
translated properly for each platforms when
text(translated) mode is used.
I tested notepad and there was no problem. Ultra
editor says the saved 'test.txt' is DOS format text
file. If "wb" is specified in my code instead of "wt"
, the saved file will be Unix format text.
Hee S. Chung
heesc@netian.com
for fopen and the created program is executed on
DOS or Windows. Because line end character is
translated properly for each platforms when
text(translated) mode is used.
I tested notepad and there was no problem. Ultra
editor says the saved 'test.txt' is DOS format text
file. If "wb" is specified in my code instead of "wt"
, the saved file will be Unix format text.
Hee S. Chung
heesc@netian.com
Cagliostro
Programmer
see in C++ woking with files is much more simplier:
#include<fstream>
#include<iostream>
using namespace std;
int main()
{
char* x[100];
int c;
ofsrteam xx("xx.txt"
;//same as fopen with w
xx<<"hello world"<<endl;
xx<<"1 hello world"<<endl;
xx<<"2 hello world"<<endl;
xx.close();
ifstream yy("xx.txt"//same as fopen with r
yy>>x;
cout<<x<<" "<<endl;
yy>>x;
cout<<x<<endl;
yy>>c;
yy.getline(x,100);
cout<<c<<" "<<x<<endl;
return 0;
} John Fill
ivfmd@mail.md
#include<fstream>
#include<iostream>
using namespace std;
int main()
{
char* x[100];
int c;
ofsrteam xx("xx.txt"
;//same as fopen with wxx<<"hello world"<<endl;
xx<<"1 hello world"<<endl;
xx<<"2 hello world"<<endl;
xx.close();
ifstream yy("xx.txt"
;//same as fopen with ryy>>x;
cout<<x<<" "<<endl;
yy>>x;
cout<<x<<endl;
yy>>c;
yy.getline(x,100);
cout<<c<<" "<<x<<endl;
return 0;
} John Fill
ivfmd@mail.md
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