【Python爬虫】-8/16课后作业
2017-08-17 本文已影响0人
Allen_Zhao
#2
s1='http://www.jianshu.com/u/5b5a9a0eac12'
s2=s1[-12::]
print(s2)
#3
s="abcdefg"
print(s[3])
print(s[:5])
print(s[::-1])
print(s[2:4])
print(s[3:])
print(s[::2])
#4
list1=[1,2,3,4,5,6,7]
print(list1[3])
print(list1[:5])
print(list1[::-1])
print(list1[2:4])
print(list1[3:])
print(list1[::2])
#5
touple1=(1,2,3,4,5,6,7)
print(touple1[3])
print(touple1[:5])
print(touple1[::-1])
print(touple1[2:4])
print(touple1[3:])
print(touple1[::2])
Print out
5b5a9a0eac12
d
abcde
gfedcba
cd
defg
aceg
4
[1, 2, 3, 4, 5]
[7, 6, 5, 4, 3, 2, 1]
[3, 4]
[4, 5, 6, 7]
[1, 3, 5, 7]
4
(1, 2, 3, 4, 5)
(7, 6, 5, 4, 3, 2, 1)
(3, 4)
(4, 5, 6, 7)
(1, 3, 5, 7)
