中文说明：LVQ的代码简单编写，感觉可能有问题，在中文论坛看的，也许没有什么用处，但是可以互相交流，请大神多多指教哦，我就是一个刚加的菜鸟，多多指教
English Description：
LVQ code is simple to write, I feel there may be problems, in the Chinese forum to see, perhaps not useful, but can communicate with each other, please God more advice Oh, I am just a rookie, more advice