Python Fibonacci number

Examples Python3

Fibonacci number refers to a number of columns 0, 1, 1, 2, 3, 5, 8, 13, noting in particular: The first 0 is 0, item 1 is the first one. From the beginning of the third term, each of which is equal to the sum of the first two.

Python implementation Fibonacci number code as follows:

# -*- coding: UTF-8 -*-

# Filename : test.py
# author by : www.w3big.com

# Python 斐波那契数列实现

# 获取用户输入数据
nterms = int(input("你需要几项？"))

# 第一和第二项
n1 = 0
n2 = 1
count = 2

# 判断输入的值是否合法
if nterms <= 0:
   print("请输入一个正整数。")
elif nterms == 1:
   print("斐波那契数列：")
   print(n1)
else:
   print("斐波那契数列：")
   print(n1,",",n2,end=" , ")
   while count < nterms:
       nth = n1 + n2
       print(nth,end=" , ")
       # 更新值
       n1 = n2
       n2 = nth
       count += 1

Execute the above code output results:

你需要几项？ 10
斐波那契数列：
0 , 1 , 1 , 2 , 3 , 5 , 8 , 13 , 21 , 34 ,

Examples Python3