python---数据类型（列表）
组织列表
使用sort()方法对列表永久性排序
按照字母顺序排序：
motorcycles = ['chunlan', 'yamaha', 'dayun', 'jianshe']
motorcycles.sort()
print(motorcycles)字母倒序：
motorcycles = ['chunlan', 'yamaha', 'dayun', 'jianshe']
motorcycles.sort(reverse=True)
print(motorcycles)使用sorted()函数进行临时排序
motorcycles = ['chunlan', 'yamaha', 'dayun', 'jianshe']
print("Here is the original list:")
print(motorcycles)
print("\nHere is the sorted list:")
print(sorted(motorcycles))
print("\nHere is the original list again:")
print(motorcycles)也可以向sorted()传递参数reverse=True倒序排列：
motorcycles = ['chunlan', 'yamaha', 'dayun', 'jianshe']
print("Here is the original list:")
print(motorcycles)
print("\nHere is the sorted list:")
print(sorted(motorcycles, reverse=True))
print("\nHere is the original list again:")
print(motorcycles)倒着打印列表
不是倒序，是倒着，该方法也是永久性地颠倒列表的顺序，不过可以再次调用，恢复之前的顺序：
motorcycles = ['chunlan', 'yamaha', 'dayun', 'jianshe']
print(motorcycles)
motorcycles.reverse()
print(motorcycles)
motorcycles.reverse()
print(motorcycles)确定列表的长度
使用len()函数：
motorcycles = ['chunlan', 'yamaha', 'dayun', 'jianshe']
print(len(motorcycles))操作列表
遍历列表
使用for循环：
magicians = ['alice', 'david', 'carolina', 'john', 'kite']
for magician in magicians:
print(magician)深入循环
使用缩进表示语句属于for的循环体：
magicians = ['alice', 'david', 'carolina', 'john', 'kite']
for magician in magicians:
print(magician.title() + ", that was a great trick!")
print("I can't wait to see your next trick, " + magician.title() + ".\n")也可以在循环结束后执行操作，只需要不再缩进即可：
magicians = ['alice', 'david', 'carolina', 'john', 'kite']
for magician in magicians:
print(magician.title() + ", that was a great trick!")
print("I can't wait to see your next trick, " + magician.title() + ".\n")
print("Thank you, everyone. That was a great magic show!")创建数值列表
使用函数range()
打印1-4：
for value in range(1, 5):
print(value)使用range()创建数字列表
使用list()函数将range()的结果直接转换为列表：
numbers = list(range(1,6))
print(numbers)
even_numbers = list(range(2,11,2)) #最后一个2是步长
print(even_numbers)创建平方的列表：
squares = []
for value in range(1,11):
square = value**2
squares.append(square)
print(squares)也可以简写为：
squares = []
for value in range(1,11):
squares.append(value**2)
print(squares)对数字列表执行简单的统计
digits = [1,2,3,4,5,6,7,8,9,0]
print(min(digits))
print(max(digits))
print(sum(digits))列表解析
列表解析将for循环和创建新的元素代码合成一行，并自动附加新元素。了解一下。
squares = [value**2 for value in range(1,11)]
print(squares)使用列表的一部分
切片
要创建切片，可指定要使用的第一个元素和最后一个元素的索引。与range()函数一样，python在到达指定的第二个索引前面的元素停止。range(1,10)
players = ['charles', 'martina', 'michael', 'florence', 'eli']
print(players[0:3])
print(players[1:4])
print(players[:3])
print(players[2:])
print(players[-3:])遍历切片
players = ['charles', 'martina', 'michael', 'florence', 'eli']
print("Here are the first three players on my team:")
for player in players[:3]:
print(player.title())复制列表
players = ['charles', 'martina', 'michael', 'florence', 'eli']
ourplayers = players[:]
print("Players are:")
print(players)
print("Ourplayers are:")
print(ourplayers)所谓的列表，就是一个序列，其中的元素有序，可变，不限类型