初识Python_技术问答

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初识Python

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慕哥5527525

def average(*args):
sum = 0.0
if len(args) ==0:
return sum
else:
for i in args:
sum += i
av = sum /len(args)
return av

print average()
print average(1, 2)
print average(1, 2, 2, 3, 4)

0 7-7 Python之定义可变参数

2018-07-26

fengyunzhu

x1 = 1
d = 3
n = 100
x100 = x1 + d * (n - 1)
s = (x1 + x100) * n / 2
print s

0 3-4 Python中什么是变量

2018-07-26

一念征途

x1 = 1
d = 3
n = 100
x100 = 1+(n-1)*3
s = (x1+x100)*100/2
print s

1 3-4 Python中什么是变量

2018-07-26

慕UI6436410

初阶学完了感觉实际工作上用不到啊
我是送外卖的，你们呢

4 9-2 索引迭代

2018-07-26

慕哥5527525

import math

def quadratic_equation(a, b, c):
q = b*b -4*a*c
if q == 0:
x = -b/2*a
return x
elif q > 0:
x1 = (-b+math.sqrt(q))/(2*a)
x2 = (-b-math.sqrt(q))/(2*a)
return x1 , x2

print quadratic_equation(2, 3, 0)
print quadratic_equation(1, -6, 5)

1 7-4 Python函数之返回多值

2018-07-26

慕哥5527525

def square_of_sum(L):
squ_sum =0
for i in L:
squ_sum += i*i
return squ_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

2018-07-26

慕哥5527525

L = []
for i in range(1,101):
L.append(i*i)
print sum(L)

2 7-2 Python之调用函数

2018-07-26