初识Python_技术问答

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初识Python

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慕仙爱学习

def toUppers(L):
return [x.upper() for x in L if isinstance(x,str)]

print toUppers(['Hello', 'world', 101])

0 10-3 条件过滤

2019-08-15

慕仙爱学习

L = ['Adam', 'Lisa', 'Bart', 'Paul']
for index, name in enumerate(L):
print index+1, '-', name

0 9-2 索引迭代

2019-08-15

慕仙爱学习

def firstCharUpper(s):
return '%s'%s[0:1].upper()+'%s'%s[1:]
print firstCharUpper('hello')
print firstCharUpper('sunday')
print firstCharUpper('september')

0 8-3 对字符串切片

2019-08-15

慕仙爱学习

L = range(1, 101)
print L[:10]
print L[2:101:3]
print L[4:54:5]

0 8-1 对list进行切片

2019-08-15

慕仙爱学习

def average(*args):
if not args:
print 0.0
else:
print sum(args)*1.0/len(args)
print average()
print average(1, 2)
print average(1, 2, 2, 3, 4)

0 7-7 Python之定义可变参数

2019-08-15

慕仙爱学习

def greet(n = 'world'):
print 'hello,%s.'%n

greet()
greet('Bart')

0 7-6 Python之定义默认参数

2019-08-15

qq_慕田峪6442181

sum = 0
x = 1
while x<100:
sum=sum+x
x=x+2
print sum

0 5-5 Python之 while循环

2019-08-15

weixin_慕哥4483233

我还以为要用索引把list值改变之后再把list变成tuple

0 4-9 Python之“可变”的tuple

2019-08-15

慕仙爱学习

#-*- coding:utf-8 -*-
def move(n, a, b, c):
if n==1:
print a,'-->',c
return
move(n-1, a, c, b)
move(1, a, b, c)
move(n-1, b, a, c)
print move(4, 'a', 'b', 'c')

0 7-5 Python之递归函数

2019-08-14