初识Python_技术问答

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初识Python

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Xxin12

你们觉得会是虚拟机么=.=

1 2-2 Windows上安装Python

2016-08-25

just_fun

import math
def quadratic_equation(a, b, c):
d = b*b - 4*a*c
if d > 0:
return (-b+math.sqrt(d))/(2*a), (-b-math.sqrt(d))/(2*a)
elif d == 0:
return (-b)/(2*a)
else:
return '无解'
print quadratic_equation(2, 3, 0)
print quadratic_equation(1, -6, 5)

0 7-4 Python函数之返回多值

2016-08-24

just_fun

def square_of_sum(L):
sum=0
for num in L:
sum=sum+num*num
return sum
print square_of_sum([1, 2, 3, 4, 5])
print square_of_sum([-5, 0, 5, 15, 25])

0 7-3 Python之编写函数

2016-08-24

颜磊

python 对空字符太严格了

0 3-6 Python中raw字符串与多行字符串

2016-08-24

明天的你

L=range(1,101)
for i in L:
cheng = i*7
if cheng > 100:
break
print (cheng)

0 9-1 什么是迭代

2016-08-24

Jerry_999

https://www.youtube.com/watch?v=5_6nsViVM00 不错的视频

0 7-5 Python之递归函数

2016-08-24

就要成为程序员的Uydr

# 如果要加入很多元素，建议使用以下代码

s = set(['Adam', 'Lisa', 'Paul'])
L = ['Adam', 'Lisa', 'Bart', 'Paul']
for x in s:
for y in L:
if x ==y:
pass
else:
s.add(y)
print s

0 6-10 Python之更新set

2016-08-24