problem2.c

北大青鸟软件工程师ppt的学生用书源代码

# include <stdio.h>
void main()
{
  int num1, num2, result;
  char operator;
  printf("\n请输入一个算术运算符字符：\n");
  scanf("%c", &operator);
  printf("\n请输入第一个整数：\n");
  scanf("%d", &num1);
  printf("\n请输入第二个整数：\n");
  scanf("%d", &num2);

  if(operator == '-')
  {
	  result = num1 - num2;
  }
  if(operator == '+')
  {
	  result = num1 + num2;
  }
  printf("\n结果为 %d。\n", result);
}