下载，官网下载找到安装包地址，命令行执行wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.2.0-darwin-x86_64.tar.gz，
解压，tar zxvf elasticsearch-7.2.0-darwin-x86_64.tar.gz
启动，
cd elasticsearch-7.2.0
sh ./bin/elasticsearch
查看，浏览器输入http://127.0.0.1:9200/，如果正常将会出现如下内容
