用枚举法解八皇后问题， 在8X8格的国际象棋上摆放八个皇后，使其不能互相攻击，即任意两个皇后都不能处于同一行、同一列或同一斜线上，问有多少种摆法。-Use enumeration method solution eight queen, in 8 x8 lattice chess put on eight queen, to make it can t attack each other, i.e., any two queen cannot in the same column with a line or the same slash, ask how many kind of pendulum method