丧尸围城3无限子弹:c语言中"fscanf()"的源代码

#include <stdio.h>

FILE *stream;

int main( void )
{
long l;
float fp;
char s[81];
char c;

stream = fopen( "fscanf.out", "w+" );
if( stream == NULL )
printf( "The file fscanf.out was not opened\n" );
else
{
fprintf( stream, "%s %ld %f%c", "a-string",
65000, 3.14159, 'x' );
// Security caution!
// Beware loading data from a file without confirming its size,
// as it may lead to a buffer overrun situation.
/* Set pointer to beginning of file: */
fseek( stream, 0L, SEEK_SET );

/* Read data back from file: */
fscanf( stream, "%s", s );
fscanf( stream, "%ld", &l );

fscanf( stream, "%f", &fp );
fscanf( stream, "%c", &c );

/* Output data read: */
printf( "%s\n", s );
printf( "%ld\n", l );
printf( "%f\n", fp );
printf( "%c\n", c );

fclose( stream );
}
}
Output
a-string
65000
3.141590
x