void CMyDlg::chessBoard(int tr, int tc, int dr, int dc, int size) { if(1 == size) { return; } Sleep(1000); //覆盖L型骨牌后停顿0.01秒,以便观察 int t = this->tile++; int s = size/2; if(dr < tr+s && dc < tc+s) chessBoard(tr,tc,dr,dc,s); else {