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201306114357-实验1,201306114357-实验

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WBOYOriginal
2016-06-13 09:08:23788browse

201306114357-实验1,201306114357-实验

#include
#include
#include
main()
{
 int a,b,c;
 float resultTrue=0,n;
 char op;
 srand(time(NULL));
 do
 {
  a=rand()%10+1;
  b=rand()%10+1;
  c=rand()%4+1;
  switch(c%4)
  {
  case 0:
   {
    op='+';
    break;
   }
  case 1:
   {
    op='-';
    break;
   }
  case 2:
   {
    op='*';
    break;
   }
  case 3:
   {
    op='/';
    break;
   }
  }
  printf("%d%c%d=\n",a,op,b);
  switch(op)
  {
   case '+':
   {
    resultTrue=a+b;
    break;
   }
   case '-':
    {
     resultTrue=a-b;
     break;
    }
   case '*':
    {
     resultTrue=a*b;
     break;
    }
   case '/':
    {
     resultTrue=a/b;
     break;
    }
  }
  printf("请输入正确答案(1000为结束):");
  scanf("%f",&n);
  if(n!=0)
  {
  if(resultTrue!=n)
  {
   printf("答案错误,答案为%d\n",resultTrue);
  }
  if(resultTrue==n)
  {
   printf("答案正确\n");
  }
  }
  if(n==10000)
  {
   return;
  }
 }while(1);
}

 

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