study-java21 学习笔记

下载链接[mac book pro m1] https://download.oracle.com/java/21/latest/jdk-21_macos-x64_bin.tar.gz

官方网站 https://openjdk.org/projects/jdk/21/

基本用法 https://baijiahao.baidu.com/s?id=1777857207925249060&wfr=spider&for=pc

scopedvalue https://openjdk.org/jeps/464