Re: [問題] 畫菱形

[yenchenlan (chester)]

void draw(int targetN, int now, int upOrDown)
{
        //畫當下這一行
        for(int i=0; i<targetN-now; i++)
                std::cout<<" ";
        for(int i=0; i<2*now-1; i++)
                std::cout<<"*";
        std::cout<<std::endl;

        //判斷終止條件
        if(now + upOrDown == 0)
                return;

        //改變方向
        if(now==targetN)
                upOrDown = -upOrDown;

        draw(targetN, now+upOrDown, upOrDown);
}

※ 編輯: yenchenlan      來自: 59.113.73.236        (02/23 01:31)