这个程序的功能是实现链式队列的基本操作，包括插入，删除，查找，销毁，清空。初学者可以看看。基本的东西才是主要的。理解了基本的，才能去学更加高深的。-The function of this program is the chain queue operations, including insert, delete, find, destroyed and emptied. Beginners can take a look. The basic thing is the main. Understand the fundamental, in order to learn more advanced.