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  ||*/