try{..}catch{..}
fun main(args:Array<String>){ try { var num = readLine() //读取键盘 var num2 = num?.toInt() println(num2) }catch (e:Exception){ println("发生异常了") } }
try{..}catch{..}
fun main(args:Array<String>){ try { var num = readLine() //读取键盘 var num2 = num?.toInt() println(num2) }catch (e:Exception){ println("发生异常了") } }