标签:ros div 用户 mysql bsp 结果 位运算 family 左移
1.切片:
>>> s="abcdefghi"
>>> s[1:7:2]#隔两个取
‘bdf‘
>>> s
‘abcdefghi‘
>>> s[::-1]
‘ihgfedcba‘
>>> s[-1]
‘i‘
>>>
2.#用户输入的形式,输出每次输入字符串最后最后一个字母
a=raw_input("please input a string1:")
b=raw_input("please input a string2:")
c=raw_input("please input a string3:")
print a[-1]+b[-1]+c[-1]
输出结果
please input a string1:hello
please input a string2:python
please input a string3:mysql
onl
3.#用户输入三个单词,
#coding=utf-8
def totalstr():
s=""
while 1:
a=raw_input("please input a string:")
if a==".":
break
else:
s+=a[-1]
print s
totalstr()
4.#在txt文档中写中文的时候惯用写法:
标签:ros div 用户 mysql bsp 结果 位运算 family 左移
原文地址:http://www.cnblogs.com/zqq521/p/7142059.html