#coding:utf-8 a="123456" print a[::-1] #output 654321 print a[::-2] #output 642 print a[::2] #output 135 |
#coding:utf-8 a='123456789' a1=[] a1.extend(a[0:4]) a1.extend(a[4:]) print a1 #output ['1', '2', '3', '4', '5', '6', '7', '8', '9'] |
#coding:utf-8 __author__ = 'Administrator' import string a='python is nice' b='mengtianwxs is a good boy' print a[:6]+' and '+b[:11] #output python and mengtianwxs |