环境设置多个jdk 快速切换

#jdk

export JAVA_8_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_311.jdk/Contents/Home
export JAVA_11_HOME=/Library/Java/JavaVirtualMachines/jdk-11.0.13.jdk/Contents/Home

export JAVA_HOME=$JAVA_8_HOME

#alias
alias jdk8='export JAVA_HOME=$JAVA_8_HOME'
alias jdk11='export JAVA_HOME=$JAVA_11_HOME'
alias jdk17='export JAVA_HOME=$JAVA_17_HOME'