如何使用递归在Swift Playground中打印Fibonacci序列

func fibonacci(_ n: Int) -> Int {
    if n <= 1 {
        return n
    } else {
        return fibonacci(n - 1) + fibonacci(n - 2)
    }
}

func printFibonacciSequence(_ count: Int) {
    for i in 0..<count {
        print(fibonacci(i), terminator: " ")
    }
    print()
}

// 打印前10个Fibonacci数字
printFibonacciSequence(10)

func fibonacciIterative(_ n: Int) -> Int {
    if n <= 1 {
        return n
    }
    var a = 0
    var b = 1
    for _ in 2...n {
        let temp = a + b
        a = b
        b = temp
    }
    return b
}

func printFibonacciSequenceIterative(_ count: Int) {
    for i in 0..<count {
        print(fibonacciIterative(i), terminator: " ")
    }
    print()
}

// 打印前10个Fibonacci数字
printFibonacciSequenceIterative(10)