基础算法-python青蛙跳台阶

【基础算法】-python青蛙跳台阶 way = 0 def traceback(n, step_num): global way if n > step_num: return if n == step_num: way += 1 return traceback(n+1, step_num) traceback(n+2, step_num) print(fibonacci(20)) traceback(0, 20) print(way)