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为什么环不执行呢?
原标题:Why is the while loop never executed?

我正在研究一个简单的程序 来测试与旗帜环绕时的情况。

但我不知道为什么我的程序出于某些原因 连环都不进入,如果我犯了简单的错误 请原谅我

主要(主要)

int main()
{
  int xflag=0;
  int n=0;

while ( xflag==1 )
{
    if (n == 10)
    {

        cout<<"exiting loop"<<endl;
        xflag = 1;
    }

    else
    {
        cout << n << endl;
        ++n;
        xflag = 0;
    }

}

cout<<"hey"<<endl;

return 0;
} 

产出

   hey
问题回答

右。 如果 xflag = 1 , 则执行 的正文, 而 环则执行 。 但是它不是 。

由于您设置了 x=1 以退出环圈, 您需要的可能是将条件 xflag = 1 改为 xflag = 0 (或simpy !xflag )。

xflag 的值为 0 。 因此, xflag =1 的条件正在返回 false 。 这就是为什么控制不会在循环中出现。





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