scala将string变成html文件,Scala值类型和String类型转换

基本类型转换String

object TypeDemo15 {

def main(args: Array[String]): Unit = {

var a:Int = 5

println((a+"").isInstanceOf[String])

}

}

String 类型转基本类型

object TypeDemo16 {

def main(args: Array[String]): Unit = {

var s2:String = "12"

var num1:Int = s2.toInt

var num2:Float = s2.toFloat

var num3:Double = s2.toDouble

var num4:Long = s2.toLong

println(s2.isInstanceOf[String])

println(num1.isInstanceOf[Int])

println(num2.isInstanceOf[Float])

println(num3.isInstanceOf[Double])

println(num4.isInstanceOf[Long])

}

}

注意事项

object TypeDemo14 {

def main(args: Array[String]): Unit = {

var s4 = "12.5"

println(s4.toInt) // 此处会报错

println(s4.toDouble.toInt)

}

}

标签：类型转换,String,Scala,s2,s4,var,println,isInstanceOf

来源： https://blog.youkuaiyun.com/chen18677338530/article/details/91432128