Mac 配置几个环境变量

终端    open -t ~/.bash_profile  打开.bash_profile

export PATH=${PATH}:/Users/maxinliang/Android/sdk/platform-tools

export JAVA_6_HOME=/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
export JAVA_7_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_75.jdk/Contents/Home

export JAVA_HOME=$JAVA_7_HOME

alias jdk7='export JAVA_HOME=$JAVA_7_HOME'
alias jdk6='export JAVA_HOME=$JAVA_6_HOME'

export PATH=${PATH}:/usr/local/mysql/bin

GRADLE_HOME=/Applications/Android\ Studio.app/Contents/gradle/gradle-2.4;
export GRADLE_HOME
export PATH=$PATH:$GRADLE_HOME/bin

然后再在console上输入以下命令：
source ~/.bash_profile