编写一个程序生成两个线程（进程）模拟龟兔赛跑。

1、兔子进程优先级高，因而跑的快，但兔子进程随机发生一些睡眠。

2、乌龟进程优先级低，因而跑的慢，但乌龟进程不发生睡眠。

3、程序应能用动画方式显示龟兔赛跑的进程。

源程序如下:（我在vc6.0调试通过）-procedures for the preparation of a generation two threads (processes) simulation hand. 1, rabbits process high priority and thus run faster, but the rabbit random process some sleep. 2, turtles low-priority process, which run slowly, but the process does not occur turtles sleep. 3, procedures should be spent shown the race between animation process. Source : (I vc6.0 through debugging)