vi .bashrc

export LIBHOME=/home/dean/lib
export RIM_LIBHOME=/home/dean/Archive
export CLASSPATH=$LIBHOME/Email.jar:$RIM_LIBHOME/EmailPdf.jar

":"分割最后个不带:

编辑完成的后退出保存

source .bashrc使环境变量生效

然后 echo $CLASSPATH查看 CLASSPATH是否已经生效