step1 https://jingyan.baidu.com/article/47a29f2474ba55c015239957.html 环境切换不起作用,看step2
step2 https://blog.csdn.net/qq_26545305/article/details/66472521
要更换myeclipse 所引用的jdk
step1 https://jingyan.baidu.com/article/47a29f2474ba55c015239957.html 环境切换不起作用,看step2
step2 https://blog.csdn.net/qq_26545305/article/details/66472521
要更换myeclipse 所引用的jdk