val v1 = 100 val v2 = 200 val isOK = if (v1 > v2) true else false println(isOK)
val v1 = 100 val v2 = 200 val str = if (v1 > v2) "大于" else "小于" println(str)
val v1 = 100 val v2 = 200 val date = if (v1 > v2) { val now = LocalDate.now() now.toString } else "9999-12-31" println(date)