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初识Python

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慕的地0133975

# 接上面
else:
x1 = str(((-1) * b) / (2 * a)) + "+" + str(math.sqrt(-pan)/(2 * a)) + 'i'
x2 = str(((-1) * b) / (2 * a)) + "-" + str(math.sqrt(-pan)/(2 * a)) + 'i'
return x1, x2
x1, x2 = quadratic_equation(1, 4, 6)
print(x1)
print(x2)
print(quadratic_equation(1, -6, 5))

1 7-4 Python函数之返回多值

2019-07-20

慕的地0133975

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

# 下面还有else，因为不能超过300个字。

1 7-4 Python函数之返回多值

2019-07-20

蕉林夜雨

练习结果如下：
#Enter a code
print(45678+0x12fd2)
print("Learn Python in imooc")
print(100<99)
print(0xff==255)

1 3-1 Python中数据类型

2019-07-19

慕数据1101364

for x in [ 0,1,2,3,4,5,6,7,8,9 ]:
for y in [0,1,2,3,4,5,6,7,8,9 ]:
if x*10+y<10:
continue
if x<y:
print(x*10+y)

0 5-8 Python之多重循环

2019-07-19

慕数据1101364

sum = 0
x = 0
while True:
x = x + 1
if x > 100:
break
if x%2==0:
continue
sum=sum+x

print sum

0 5-7 Python之 continue继续循环

2019-07-19

慕数据1101364

sum = 0
x = 1
n = 1
while True:
x=2**(n-1)
n=n+1
sum=sum+x
if n>20:
break
print sum

0 5-6 Python之 break退出循环

2019-07-19

慕数据1101364

L = [75, 92, 59, 68]
sum = 0.0
for a in L:
sum=sum+a
print sum / 4

0 5-4 Python之 for循环

2019-07-19

慕丝9145352

print r'''"To be, or not to be": that is the question.
Whether it's nobler in the mind to suffer.'''

0 3-6 Python中raw字符串与多行字符串

2019-07-18

慕数据1101364

print (r'''"To be, or not to be": that is the question.
Whether it's nobler in the mind to suffer.''')

0 3-6 Python中raw字符串与多行字符串

2019-07-16

慕数据1101364

s = 'Python was started in 1989 by "Guido".\nPython is free and easy to learn.'
print s

2 3-5 Python中定义字符串

2019-07-16

慕数据1101364

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

1 3-4 Python中什么是变量

2019-07-16

慕数据1101364

print("hello,python.")
print("hello,"+"python.")

0 3-2 Python之print语句

2019-07-16

宝慕林2271750

为什么我到3-1就看不懂了

2 3-1 Python中数据类型

2019-07-16

慕数据1101364

a=45678
b=0x12fd2
print(a+b)

c="Learn Python in imooc"
print(c)

print bool(100<99)
print bool(0xff==255)
仅供参考，运行成功

1 3-1 Python中数据类型

2019-07-16

weixin_慕桂英1215033

a=45678
b=int(0x12fd2)
c=a+b
print c
print 'Learn Python in imooc'
print(100<99)
print(255==0xff)
运行成功

0 3-1 Python中数据类型

2019-07-16

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