西洋棋中的皇后可以直线前进，吃掉遇到的所有棋子，如果棋盘上有八个皇后，则这八个皇后如何相安无事的放置在棋盘上？ -Queen of chess can be straight forward, eat all the chess pieces encountered, if there are eight Queen s chessboard, then the eight Queen s How to live in peace on the placed on the chessboa