首先,你的程序有问题!printf后面没有冒号。#include <stdio.h>int main(){ int k; scanf("%d",&k); switch(k) { case 1:printf("%d\n",k++); case 2:printf("%d\n",k++); case 3:printf("...
include int main(){ double x;printf("x=");scanf("%lf",&x);if(x)printf("y=.2lf\n",x+10);else if(x>0)printf("y=.2lf\n",1+x*x);else printf("y=0.0\n");return 0;}
“∧”是通过二进制的数来操作的。所以在执行命令中要把每个数字转换成二进制来进行运算。而#define是宏定义,只用来做简单的替换 所以过程替换后就应该变成 include main() { int a=3,b=5,c=7;a=a∧b;b=a∧b;a=a∧b;b=b∧c;c=b∧c;b=b∧c;a=a∧c;c=a∧c;a=a∧c;printf("a=d,b=d,c=d\n",a,b,c);} 以jh...