3_关系和逻辑运算

//_3_关系和逻辑运算
//_3_main.cpp
#include <stdio.h>
#include <stdlib.h>

//使用逻辑或者关系运算符的表达式返回零作为假值，返回1作为真值
int main()
{
	//定义一个整形变量用来存放后面的算式的值
	int logic;
	int a = 1;
	int b = 2;
	int c = 3;
	
	logic = a+b>c&&b<=c;
	printf("logic = %d.\n",logic);
	logic = a>=b+c||b==c;
	printf("logic = %d.\n",logic);
	logic = !(a<c)+b!=1&&(a+c)/2;
	printf("logic = %d.\n",logic);
	system("pause");
	return 0;
}

/*
关键还是在于弄清楚关系和逻辑操作符的相对优先级
最高  !
        >    >=   <   <=
		==  !=
		&&
最低  ||
*/