scala安装

 scala从2.0 版本后需要安装jdk1.8环境，安装jdk方法请参考https://blog.youkuaiyun.com/anaitudou/article/details/79864893
[root@itcast01 ~]#tar  -zxvf    scala-2.12.6.tgz -C  /itcast

配置环境变量
[root@itcast01 itcast]# vim /etc/profile
  export SCALA_HOME=/itcast/scala-2.12.6
生效
[root@itcast01 itcast]# source /etc/profile

检验

[root@itcast01 itcast]# scala

Welcome to Scala 2.12.6 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_171).
Type in expressions for evaluation. Or try :help.

scala> 1*2
res0: Int = 2

scala>

scala 安装 OK