ex12_05.c

里面包含很多c语言的源码

/* Using a global */
#include <stdio.h>

int var = 99;

void print_func(void);

int main( void )
{
    int var = 77;
    printf( "Printing in function with local and global:");
    printf( "\nThe Value of var is %d", var );
    print_func( );

    return 0;
}
void print_func( void )
{
    printf( "\nPrinting in function  only global:");
    printf( "\nThe value of var is %d\n", var );
}