Scala学习笔记-04-控制结构 if while

if

val x = 10

if(x>10){
	println("x > 10")
} else if (x > 5){
	println("x > 5")
} else {
	println("else ......")
}

 

if 赋值

scala> val x = 10
x: Int = 10

scala> val y = if(x>0) -x else x
y: Int = -10

 

while & do while

var x = 10

while (x>0){
	println("--->: " + x)
	x = x - 1
}

 

var x = 10

do {
	println("--->: " + x)
	x = x - 1
} while(x > 0)

 

 

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