Scala -全局变量获取函数中的值

var globalVariable = 10

def getValueFromClosure(): Int = {
  val closure = () => globalVariable
  closure()
}

val result = getValueFromClosure()
println(result) // 输出：10

var globalVariable = 10

def getValueFromFunction(variable: Int): Int = {
  variable
}

val result = getValueFromFunction(globalVariable)
println(result) // 输出：10

object GlobalObject {
  var globalVariable = 10
}

def getValueFromObject(): Int = {
  GlobalObject.globalVariable
}

val result = getValueFromObject()
println(result) // 输出：10