该程序利用C++环境，实现了N皇后问题。当输入的皇后个数是13时，运行速度还相当可以。当个数增加到14的时候，运行速度就相对慢了下来，不过运行出正确的结果是没有问题的。-This process uses the c++ circumstance,and it accomplished the N Queens problem.when the input number is 13,the running speed is at a fairly rapid pace.when the input number increased to 14,the speed is slightly lower,but always run out of the final results.