本程序利用伪随机数模拟随机行走过程，在判断方向的语句上开创性的使用了矩阵计算，使得程序运行工程减少了判断语句，降低了程序的运行时间，优化了程序(This procedure using pseudo random number random walk simulation process, judge the direction of statements in pioneering use of matrix calculation, the program reduces the engineering judgment statement, reduce the running time of the program, the program is optimized)