#簡單的差看幫助文檔input(...)和raw_input(...)有如下區(qū)別 >>> help(input) Help on built-in function input in module __builtin__: input(...)   input([prompt]) -> value   Equivalent to eval(raw_input(prompt)). >>> help(raw_input) Help on built-in function raw_input in module __builtin__: raw_input(...)   raw_input([prompt]) -> string       Read a string from standard input. The trailing newline is stripped.   If the user hits EOF (Unix: Ctl-D, Windows: Ctl-Z+Return), raise EOFError.   On Unix, GNU readline is used if enabled. The prompt string, if given,   is printed without a trailing newline before reading.   #可見 input會根據(jù)輸入的內(nèi)容eval結果來返回值，即輸入純數(shù)字，則得到的就是純數(shù)字 #     raw_input返回的才是字符串 #test： >>> a = input("輸入數(shù)字") 輸入數(shù)字1 >>> type(a) <type 'int'> >>> b=raw_input("輸入數(shù)字") 輸入數(shù)字1 >>> type(b) <type 'str'> 

>>> 1 if True else 0 1 >>> 1 if False else 0 0 >>> "True" if True else "False" 'True' >>> "True" if True else "False" 'Falser' 

>>> (True and ["True"] or ["False"])[0] 'True' >>> (False and ["True"] or ["False"])[0] 'False' >>>  

# -*- coding: cp936 -*- def findStr(string, subStr, findCnt):   listStr = a.split(subStr,findCnt)   if len(listStr) <= findCnt:     return -1   return len(string)-len(listStr[-1])-len(subStr) #test a = "12345(1)254354(1)3534(1)14" sub = "(1)" N = 2   #查找第2次出現(xiàn)的位置 print findStr(a,sub,N) N = 10   #查找第10次出現(xiàn)的位置 print findStr(a,sub,N) #結果 #>>>  #14 #-1 

>>> help(enumerate) Help on class enumerate in module __builtin__:  class enumerate(object)  | enumerate(iterable[, start]) -> iterator for index, value of iterable  |   | Return an enumerate object. iterable must be another object that supports  | iteration. The enumerate object yields pairs containing a count (from  | start, which defaults to zero) and a value yielded by the iterable argument.  | enumerate is useful for obtaining an indexed list:  |   (0, seq[0]), (1, seq[1]), (2, seq[2]), ...  |   | Methods defined here:  |   | __getattribute__(...)  |   x.__getattribute__('name') <==> x.name  |   | __iter__(...)  |   x.__iter__() <==> iter(x)  |   | next(...)  |   x.next() -> the next value, or raise StopIteration  |   | ---------------------------------------------------------------------- | Data and other attributes defined here:  |   | __new__ = <built-in method __new__ of type object>  |   T.__new__(S, ...) -> a new object with type S, a subtype of T 

>>> List = ['a','b','c'] >>> for index, value in enumerate(List):   print index, value 0 a 1 b 2 c >>>  

import List = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]  slice = random.sample(List, 5)#從List中隨機獲取5個元素，作為一個片斷返回  print slice  print List #原有序列并沒有改變。

# -*- coding:utf-8 -*- import json #你的列表 listA = [{'path': ['[AWS] /xe7/xbe/x8e/xe5/xb0/x91/xe5/xa5/xb3/xe6/x88/x98/xe5/xa3/xab Sailor Moon Crystal - Moon Pride MV[BIG5][BDrip 1080p x264 AAC][6E5CFE86].mp4'], 'length': 131248608L}, {'path': ['[AWS] /xe7/xbe/x8e/xe5/xb0/x91/xe5/xa5/xb3/xe6/x88/x98/xe5/xa3/xab Sailor Moon Crystal - Moon Pride MV[BIG5][BDrip 720p x264 AAC][639D304A].mp4'], 'length': 103166306L}, {'path': ['[AWS] /xe7/xbe/x8e/xe5/xb0/x91/xe5/xa5/xb3/xe6/x88/x98/xe5/xa3/xab Sailor Moon Crystal - Moon Pride MV[BIG5][BDrip 480p x264 AAC][5A81BACA].mp4'], 'length': 75198408L}]#打印列表print json.dumps(listA, encoding='UTF-8', ensure_ascii=False) 

>>>  [{"path": ["[AWS] 美少女戰(zhàn)士 Sailor Moon Crystal - Moon Pride MV[BIG5][BDrip 1080p x264 AAC][6E5CFE86].mp4"], "length": 131248608}, {"path": ["[AWS] 美少女戰(zhàn)士 Sailor Moon Crystal - Moon Pride MV[BIG5][BDrip 720p x264 AAC][639D304A].mp4"], "length": 103166306}, {"path": ["[AWS] 美少女戰(zhàn)士 Sailor Moon Crystal - Moon Pride MV[BIG5][BDrip 480p x264 AAC][5A81BACA].mp4"], "length": 75198408}]