统计输入的字符！

void main()
{
	char s[80];
	int i, n1 = 0, n2 = 0, n3 = 0, n4 = 0;
	gets(s);
	for(i=0; s[i] != '\0'; i ++)
	{
		if(s[i] >= 'a' && s[i] <= 'z' || s[i] >= 'A' && s[i] <= 'Z')
			n1 += 1;
		else if(s[i] >= '0' && s[i] <= '9')
			n2 += 1;
		else if(s[i] == ' ')
			n3 += 1;
		else
			n4 += 1;
	}
	printf("aphla %d，digit %d，blank %d，other %d\n", n1, n2, n3, n4);
}