Question

c程序代码错误有没有大神指点一二。

/* list_it.c_THis program displays a listing with line numbers! */
#include <stdio.h>
#include <stdlib.h>

void display_usage(void);
int line;

int mian( int argc, char *argv[] )
{
char buffer[256];
FILE *fp

if( argc < 2 )
{
display_usage();
return 1;
}

if (( fp = fopen( argv[1], "r" )) == NULL )
{
fprintf( stderr, "Error opening file, %s!", argv[1]);
return(1);
}

line = 1;

while( fgetd( buffer, 256, fp ) != NULL )
fprintf( stdout, "%4d:\t%s", line++, buffer );

fclose(fp);
return 0;
}

void display_usage(void)
{ fprintf(stderr, "\nproper Usage is: " );
fprintf(stderr, "\n\nlist_it filename.ext\n" );
}

Answer 1

1、int main(int argv, char* argc[])
2、FILE *fp;
3、while( fgets( buffer, 256, fp ) != NULL )
有这三个地方错误

追问

怎么个错法啊？