While循环
object WhileCharPrintExample {
def main(args: Array[String]): Unit = {
val str = "hello world"
var index = 0
while (index < str.length && str(index) != ' ') {
println(str(index))
index += 1
}
}
}

For循环
object SumExample {
def main(args: Array[String]): Unit = {
var sum = 0
for (i <- 1 to 100) {
sum += i
}
println(s"The sum from 1 to 100 is: $sum")
}
}
