9.c

#include 

int main(void)
{
	printf("%d \n", 3 > 4);		//0
	printf("%d \n", 3 == 4);	//假为0;
	printf("%d \n", 3 <= 4);	//真为1;
	printf("%d \n", 3 >= 4);
	printf("%d \n", 3 != 4);

	printf("%d \n", !8);
	printf("%d \n", !0);
	printf("%d \n", !(3 > 4));
	printf("%d \n", 1 && 2 && 3 && 4 || 5);
	printf("%d \n", 1 && 2 && 0 && 4 || 5);


}