简单递归

#coding:utf-8
def calc(n):
    print(n)
    if int(n/2)>0:
        return calc(int(n/2))
    print("->",n)

calc(10)

结果：

C:\Users\jelena.zhao\AppData\Local\Programs\Python\Python36\python3.exe E:/pythonscripts/study/test1/test.py 10 5 2 1 -> 1 Process finished with exit code 0

可以打断点看递归的过程