说明：  开发一个多线程程序同时对一个链表进行节点插入。 （1）要求算法正确 （2）该系统要求使用头插法，插入结果正确，并输出结果。 （3）要求模拟出多线程程序资源共享问题。在本程序中体现为链表节点的丢失。 （4）给出正确的链表受到保护的实现。要求使用线程同步机制。
(At the same time develop a multi-threaded program into a linked list node. (1) request algorithms correctly (2) The system requires the use of the first interpolation method, insert the results are correct, and output. (3) require a multithreaded program to simulate the resource sharing problem. In this program reflects the loss for the list node. (4) gives the correct implementation of the protection list. Require the use of thread synchronization mechanism.)