# 判断 env 参数的值,如果是dev,则输出 dev runtime
if [ "$env" = "dev" ]
then echo "dev runtime"
# 判断 env 参数的值,如果是test,则输出 test runtime
elif [ "$env" = "test" ]
then echo "test runtime"
# 判断 env 参数的值,如果是online,则输出 online runtime
elif [ "$env" = "online" ]
then echo "online runtime"
# 判断 env 参数的值,如果是其他,则输出 other runtime
else echo "other runtime"
fi