难题1：您需要安装JDK才能使用“java -jar minerl_installer.jar”命令行工具。
待解决办法：安装JDK
思路：有地方
先点https://www.aicrowd.com/challenges/neurips-2020-minerl-competition
再点https://github.com/minerllabs/competition_submission_template
指路“（Install competition specific dependencies! Make sure you have the JDK 8 installed first!）”
在这里https://minerl.io/docs/tutorials/getting_started.html下载JDK
First make sure you have JDK 1.8 installed on your system.
“On Mac, you can install java8 using homebrew and AdoptOpenJDK (an open source mirror, used here to get around the fact that Java8 binaries are no longer available directly from Oracle):”
难题2. 先说下载JDK 8，进到链接里了又说下载JKD1.8，到底是下载哪一个？
里头有说java8
难题3：是下载JDK SE还是JDK EE？
难题2：