# -*- coding:utf-8 -*-#最基本的数据结构：序列，索引从0开始
#python包括6种内建的序列
#最常用的序列包括：列表，元祖#列表
edward = ['Edward Gumby',42]
print edward#列表的元素可以是列表
john=['John Smith',50]
database = [edward, john]
print database#python之中还有一种名为容器的数据结构。
#序列（如列表和元组）和映射（如字典）是两类主要的容器。
#序列的每个元素都有自己的编号，而映射中的每一个元素则有一个名字（也称为键）
#既不是序列也不是映射的容器类型：集合（set）#序列（list\triple）的通用操作：索引、分片、加、乘、以及检查某个元素是否属于序列的成员、计算序列长度、找出最大元素、找出最小元素、迭代#字符串使用索引
greeting = 'hello'
print greeting[0]
print greeting[-1]#字符串字面值直接使用索引
print greeting[1]#如果一个函数返回一个序列，那么可以直接对返回结果进行索引操作。
#fourth = raw_input('Year: ')[3]
#print fourth#输入年月日的数字，打印日期
#为方便后续笔记调试，该段代码已被注释掉
'''
months = ['January','February','March','April','May','June','July','August','September','October','November','December']endings = ['st','nd','rd'] + 17 *['th']\+ ['st','nd','rd'] + 7 *['th']\+ ['st']year    = raw_input('Year: ')
month   = raw_input('Month (1-12):')
day     = raw_input('Day (1-31):')month_number    = int(month)
day_number      = int(day)month_name      = months[month_number-1]
ordinal         = day + endings[day_number-1]print month_name + ' ' + ordinal + ' ' + year
'''#分片,t[a:b]不包括t[b]
tag = 'https://www.quora.com/#'
tmpTag = tag[8:21]
print tmpTag    #www.quora.com
print tag[8:-2] #www.quora.com#对列表分片
numbers = [1,2,3,4,5,6,7,8,9,10]
print numbers[3:6]  #[4, 5, 6]#访问后几个元素
print numbers[8:]print numbers[-3:-1]    #[8, 9]print numbers[-3:0]     #[]print numbers[-3:]      #[8, 9, 10]print numbers[:3]       #[1, 2, 3]print numbers[:]        #[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]#对http://www.quora.com形式的URL进行分割
'''
url = raw_input("Please enter the url:")
domain = url[11:-4]
print "Domain name: " + domain
'''#更大的步长
print numbers[0:10:1]   #[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]print numbers[0:10:2]   #[1, 3, 5, 7, 9]print numbers[3:6:3]    #[4]print numbers[::3]      #[1, 4, 7, 10]#步长可以是负数
print numbers[8:3:-1]   #[9, 8, 7, 6, 5]#范围和步长不一致，输出为空
print numbers[3:8:-1]   #[]print numbers[::-2]     #[10, 8, 6, 4, 2]#一端没有指定，步长为负的情况:起始点大于结束点
print numbers[5::-2]    #[6, 4, 2]
print numbers[:5:-2]    #[10, 8]#序列相加
print [1,2,3]+[4,5,6]print 'Hello ' + 'world!''''
print [1,2,3] + 'world!'
#TypeError: can only concatenate list (not "str") to list
'''#乘法
print 'python '*5print [42] * 10#None、空列表 和 初始化
sequence = [None]*10
print len(sequence)#以正确的宽度在居中的“盒子”内打印一个句子
'''
sentence    = raw_input("Sentence: ")
screen_width    = 80
text_width  = len(sentence)
box_width   = text_width + 20
left_margin1 = (screen_width - box_width) // 2
left_margin2 = (screen_width - text_width - 4) // 2print
print ' ' * left_margin1 + '+'  + '-' * (box_width -2) +  '+'
print ' ' * left_margin2 + '| ' + ' ' * text_width     + ' |'
print ' ' * left_margin2 + '| ' +       sentence       + ' |'
print ' ' * left_margin2 + '| ' + ' ' * text_width     + ' |'
print ' ' * left_margin1 + '+'  + '-' * (box_width -2) +  '+'
print
'''#成员资格
permissions = 'rw'
print 'w' in permissions
print 'x' in permissions
users = ['mlh', 'foo', 'bar']
#print raw_input('Enter your user name: ') in users

subject = 'Get rich now!!'
print 'rich' in subject     #True#检查用户名和输入码
'''
database = [['albert', '1234'],['dilbert', '4242'],['smith', '7524'],['jones', '8765']]
username = raw_input('User name: ')
pin      = raw_input('PIN code: ')if [username, pin] in database: print 'Access granted'
'''#长度、最小值、最大值
numbers = [100, 34, 765]
print len(numbers)
print max(numbers)
print min(numbers)