下载文件
kafka官网：https://kafka.apache.org/quickstart
zookeeper官网：https://zookeeper.apache.org/releases.html
wget https://dlcdn.apache.org/kafka/3.2.0/kafka_2.13-3.2.0.tgz
wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.0/apache-zookeeper-3.8.0.tar.gz
