说明：  用C语言进行编程，中平均取中法取随机数的方法。然后用matlab软件将其随机长度模拟出来，获得较长的随机数长度的模拟方法。
(The C programming language, taking an average of France to take random numbers. Then using matlab software to simulated random length, the length of the random number to obtain a longer simulation method.)