package com.bjorktech.cayman.idea.architecture.o2o.meituan;

/**
 * User: sheshan
 * Date: 2018/8/15
 * content:
 */
public class LockStock {
    /**
     * update lockCount = lockCount + n where id = 100 and totalCount -lockCount >= 4，防止超卖
     */
    public void lockStock() {

    }
}
