UVA 494

学习了接受换行的方法，scanf()遇到换行和空格就停止了，另外学习了一点儿编程技巧，写宏命令能让程序更短

#include "stdio.h"
#include "string.h"
#define FUN(a) ((a >= 97 && a <= 122) || (a >= 65 && a <= 90 ))
main()
{
	char a ,b = ' ',sum = 0;
	while((a = getchar()) != EOF)
	{
		if('\n' == a) 
		{
			printf("%d\n",sum);
			b = ' ';
			sum = 0;
		}
		else
		{
			if( FUN(a) && (!FUN(b)) )  sum++;
			b = a;
		}
	}
	return 0;
}