在eclipse运行scala程序为什么一直抱错，
Exception in thread "main" java.lang.NoClassDefFoundError: scala/Function1
at Demo01.printMT.main(printMT.scala)
Caused by: java.lang.ClassNotFoundException: scala.Function1
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:602)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 1 more
