生产者与消费者问题算法实现,功能要求：根据进程同步机制，编写一个解决上述问题的可视化程序，可显示缓冲池状态、放数据、取数据等过程。

具体参数：有4个生产者进程，分别为P1、P2、P3和P4；

有4个消费者进程，分别是C1、C2、C3和C4；

缓冲区单元个数N=15；

不同的生产进程可生产不同的产品，自己可任意定义，在本程序中是直接将相应生产者代号放入缓冲区，消费时将某消费者消费某生产者的信息显示出来

-Producers and consumers, the issue of algorithm, the functional requirements: In accordance with the process of synchronization mechanism to resolve these issues to prepare a visual program, displays the buffer pool status, release data, check data process. Specific parameters: There are four producers in the process, namely, P1, P2, P3 and P4　there are four consumer process, namely C1, C2, C3 and C4　buffer cell number N = 15　different production processes can produce different products that they can be defined, in this process is the producer directly to the corresponding code Add buffer, consumption will be a consumer of a producer of information displayed