说明：  所有四阶幻方的QBASIC程序，注意，此程序需运行几个小时到几十个小时，运行结果输出后，不定期写入文件。
(Fourth-order magic squares of all the QBASIC program, note that this process will take several hours to run to tens of hours after running the results of the output, write to file from time to time.)