一个测试多线程执行情况的小程序，可以显示线程进行的情况，计算素数等-A test implementation of multi-threaded applet, and they demonstrated the thread of the situation, such as computing prime numbers

一个多线程的小程序，自己写的，大家可以-A multi-threaded applet, write your own, we can see

自己写的测试多线程的小程序，按下按键后有两个label同时在不停的计数。-Write myself multi-threaded test applet, press two keys at the same time keep the label count.