真-非0  假-0 &&-逻辑与

#include<stdio.h>
int main()
{
  int a = 2;
  int b = 5;
  //int c = a && b;//真-非0  假-0 &&-逻辑与
  int c = a || b;//  | |逻辑或
  printf("c = %d\n", c);
  return 0;
}

三目操作符（exp1 ? exp2 :exp3)

int main()
{
  int a = 10;
  int b = 20;
  int max = 0;
  max = (a > b ? a : b);//三目操作符（exp1 ? exp2 :exp3)
  if (a > b)
    max = a;
  else
    max = b;
  return 0;
}

[]下标操作符  （）-函数调用操作符

int Add(int x, int y)
{
  int z = 0;
  z = x + y;
  return z;
}


int main()
{
  //int arr[10] = { 0 };
  //arr[4];//[]下标操作符
  int a = 10;
  int b = 20;
  int sum = Add(a, b);//9（）-函数调用操作符
  printf("sum = %d\n", sum);
  return 0;
}