stdio文件函数详解(4)

stdio文件常用函数

#include <stdio.h>

#include <conio.h>

#include <io.h>

void flush(FILE *stream);

int main()

{

FILE *stream;

char msg[]="This is a test";

stream=fopen("DUMMY.FIL","w");

fwrite(msg,strlen(msg),1,stream);

clrscr();

printf("Press any key to flush DUMMY.FIL:");

getch();

flush(stream);

printf("File was flushed,Press any key to quit:");

getch();

return 0;

}

void flush(FILE *stream)

{

int duphandle;

fflush(stream);

duphandle=dup(fileno(stream));

close(duphandle);

}

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