def fun(n):
    if n==1:
       return n
    else:
       res=n*fun(n-1)   #遞歸行數(shù)
       return res
print(fun(6))

E:PycharmProjectspythonProjectvenvScriptspython.exe E:/PycharmProjects/pythonProject/demon1/demo32.py
720

進(jìn)程已結(jié)束,退出代碼0