val 不可变
var 可变
val x:int = 1
val x = 1
scala> val decimal = 11235L
decimal: Long = 11235
scala> val hexa = 0x23
hexa: Int = 35
scala> val i = 1
i: Int = 1
scala> val i2: Byte = 1
i2: Byte = 1
scala> val d = 0.0
d: Double = 0.0
scala> val f = 0.0f
f: Float = 0.0
scala>val exponent = 1e30
exponent: Double = 1.0E30
val s = "wsevwev"
时间: 2024-10-16 15:27:12