在n*n的棋盘上放置n个皇后，要求皇后两两互斥，即任意两个皇后不能出现在同一行、同一列或同一条斜对角线上。试求出所有的合法布局-In the n* n chessboard placed on the n Queens, asked the Queen twenty-two mutually exclusive, that is, any two queens can not appear on the same line, same column, or diagonal line with