func getStepNumber(n:Int) -> Int {
if 0 > n{
return 0;
}
if n == 1 {
return 1;
}
if n == 2 {
return 2;
}
if n > 2 {
return getStepNumber(n: n - 1) + getStepNumber(n: n - 2);
}
return 0;
}
let num = getStepNumber(n: 9)
print(num)
swift递归
猜你喜欢
转载自blog.csdn.net/wangai9140/article/details/84725616
今日推荐
周排行