求阶乘
# 输入一个参数n,放回n的阶乘 例如:7 计算7*6*5*4*3*2*1 def func(n): a = 1 for i in range(n, 0, -1): a *= i return a ret = func(7) print(ret)
求阶乘
# 输入一个参数n,放回n的阶乘 例如:7 计算7*6*5*4*3*2*1 def func(n): a = 1 for i in range(n, 0, -1): a *= i return a ret = func(7) print(ret)