412. Fizz Buzz

one day one cannon

or 

one week five cannons

412. Fizz Buzz

Write a program that outputs the string representation of numbers from 1 to n.

But for multiples of three it should output “Fizz” instead of the number and for the multiples of five output “Buzz”. For numbers which are multiples of both three and five output “FizzBuzz”.

Example:

n = 15,Return:[    "1",    "2",    "Fizz",    "4",    "Buzz",    "Fizz",    "7",    "8",    "Fizz",    "Buzz",    "11",    "Fizz",    "13",    "14",    "FizzBuzz"]

#coding=utf-8class Solution(object):    def fizzBuzz(self,n):        result=[]        for i in range(1,n+1):            if i%3==0 and i%5==0:                result.append("FizzBuzz")            elif i%5==0:                result.append("Buzz")            elif i%3==0:                result.append("Fizz")            else:                result.append(str(i))        return result    def fizzBuzz1(self,n):        return ['Fizz'*(not i % 3)+'Buzz'*(not i%5) or str(i) for i in range(1,n+1)]X=Solution()print X.fizzBuzz(20)print X.fizzBuzz1(20)

主要讲一下列表生成式。http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/00138681963899940a998c0ace64bb5ad45d1b56b103c48000

return ['Fizz'*(not i % 3)+'Buzz'*(not i%5) or str(i) for i in range(1,n+1)]
这句代码比较好，列表生成式，   字符串可以*bool值，也可以*整型数值

>>> "abd"*0''>>> 66>>> 'abd'*(not 6%3)'abd'>>> not (1)False>>> not 1False>>> 'abd'*True'abd'>>>>>> 'abd'*6'abdabdabdabdabdabd'