在scala命令行中加入scala的类库.
scala -toolcp $HOME/.ivy2/cache/org.scalanlp/breeze_2.12/jars/breeze_2.12-0.13.2.jar
scala -toolcp $HOME/.m2/repository_alipay/org/scalanlp/breeze_2.12/1.0-RC2/breeze_2.12-1.0-RC2.jar