# # 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 # # # @param n int整型 # @return int整型 # class Solution: def Fibonacci(self , n: int) -> int: # write code here m=1 sum=1 if n<=2: return 1 else: for i in range(2,n): m,sum=sum,sum+m return sum