Kotlin 代码格式化工具

data class Person(val name: String, val age: Int)

fun calculateTotal(items: List<Item>): Double {
    var total = 0.0
    for (item in items) {
        total += item.price * item.quantity
    }

    return if (total > 1000) {
        total * 0.9 // 10% discount
    } else {
        total
    }
}

fun main() {
    val items = listOf(
        Item("Laptop", 1200.0, 1),
        Item("Mouse", 25.0, 2),
        Item("Keyboard", 60.0, 1)
    )

    println("Total amount: ${calculateTotal(items)}")
}