CourseGroup

abstract def children: Seq[CourseGroup]

获得子节点集合.

abstract def compare(that: CourseGroup): Int

abstract def compulsory: Boolean

判断是否必修组
如果组内没有课程和子组，那么就是选修
如果组内有课程没子组，那么所有课程都是必修才是必修，否则就是选修
如果组内无课程有子组，那么组关系必须是AND才是必修，否则就是选修
如果组内有课程有子组，那么所有课程都是必修且关系AND才是必修，否则就是选修

abstract def courseNum: Short

获得组内要求门数

abstract def courseType: CourseType

获得课程类别.

abstract def credits: Float

要求组内要求总学分

abstract def groupNum: Short

要求完成的课程组数量 (-1表示全部完成)

abstract def id: Long

abstract def indexno: String

abstract def parent: CourseGroup

获得上级组

abstract def plan: CoursePlan

获得课程方案

abstract def planCourses: Seq[PlanCourse]

abstract def remark: String

获得备注.

abstract def termCredits: String

获得每学期学分

final def !=(arg0: Any): Boolean

final def ##(): Int

def <(that: CourseGroup): Boolean

def <=(that: CourseGroup): Boolean

final def ==(arg0: Any): Boolean

def >(that: CourseGroup): Boolean

def >=(that: CourseGroup): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def compareTo(that: CourseGroup): Int

final def eq(arg0: AnyRef): Boolean

def equals(other: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

var name: String

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def persisted: Boolean

final def synchronized[T0](arg0: ⇒ T0): T0

def toString(): String

final def wait(): Unit

final def wait(arg0: Long, arg1: Int): Unit

final def wait(arg0: Long): Unit