说明：  Apache Flink是由Apache软件基金会开发的开源流处理框架，其核心是用Java和Scala编写的分布式流数据流引擎。Flink以数据并行和流水线方式执行任意流数据程序，Flink的流水线运行时系统可以执行批处理和流处理程序。此外，Flink的运行时本身也支持迭代算法的执行。
(Apache Flink is an open-source stream processing framework developed by the Apache Software Foundation, with its core being a distributed stream data flow engine written in Java and Scala. Flink executes arbitrary stream data programs in both data parallelism and pipeline mode, and Flink's pipeline runtime system can execute batch and stream processing programs. In addition, Flink's runtime also supports the execution of iterative algorithms.)