程序包的使用
org.apache.flink.datastream.api.common

使用org.apache.flink.datastream.api.common的程序包

程序包	说明
org.apache.flink.datastream.api.function

org.apache.flink.datastream.api.function使用的org.apache.flink.datastream.api.common中的类

类和说明
Collector This class take response for collecting data to output stream.