這兩個片段產生了相同的結果。什麼是numberOfTimes(方法?)你如何實現numberOfTimes?類中的方法
class Counter
{
var count: Int = 0
func incrementBy(amount: Int, numberOfTimes times: Int)
{
count += amount * times
}
}
var counter = Counter()
counter.incrementBy(2, numberOfTimes: 7)
class Counter
{
var count: Int = 0
func incrementBy(amount: Int, times: Int)
{
count += amount * times
}
}
var counter = Counter()
counter.incrementBy(2, times: 7)