Python string/tuple/list/dictionary cross-transfer

#-*-coding:utf-8-*-

Http://www.cnblogs.com/linjiqin/p/3674356.html

#1, Dictionaries

Dict = {' name ': ' Zara ', ' age ': 7, ' class ': ' First '}

#字典转为字符串, return: <type ' str ' > {' age ': 7, ' name ': ' Zara ', ' class ': ' First '}

Print type (str (dict)), str (DICT)

#字典可以转为元组, return: (' age ', ' name ', ' class ')

Print tuple (dict)

#字典可以转为元组, return: (7, ' Zara ', ' first ')

Print tuple (dict.values ())

#字典转为列表, return: [' age ', ' name ', ' class ']

Print List (dict)

#字典转为列表

Print Dict.values

#2, tuples

tup= (1, 2, 3, 4, 5)

#元组转为字符串, return: (1, 2, 3, 4, 5)

Print tup.__str__ ()

#元组转为列表, return: [1, 2, 3, 4, 5]

Print List (TUP)

#元组不可以转为字典

#3, List

Nums=[1, 3, 5, 7, 8, 13, 20];

#列表转为字符串, return: [1, 3, 5, 7, 8, 13, 20]

Print str (nums)

#列表转为元组, return: (1, 3, 5, 7, 8, 13, 20)

Print tuple (nums)

#列表不可以转为字典

#4, String

#字符串转为元组, return: (1, 2, 3)

Print tuple (eval ("())")

#字符串转为列表, return: [1, 2, 3]

Print List (eval ("(+)"))

#字符串转为字典, return: <type ' dict ' >

Print type (eval ("{' Name ': ' Ljq ', ' Age ': 24}"))

Dictionary, meta-ancestor, list, string, convert to each other

Dictionary

Dict = {' name ': ' Zara ', ' age ': 7, ' class ': ' First '}

A= Str (dict) converted to string

Print (Type (tuple (dict.values ()))) converted to progenitor

Print (List (dict.values ())) to list

Ganso

tup= (1, 2, 3, 4, 5)

Print (Type (tup.__str__ ())) converted to string

Print (list (tup)) to list

Tuples cannot be converted to dictionaries

List

Nums=[1, 3, 5, 7, 8, 13, 20]

Print (Type (str (nums))) converted to a string

Print (Type (tuple (nums)) to meta-ancestor

Tuples cannot be converted to dictionaries

String

eval = a

Print (type tuple (eval)) to progenitor

Print (list (eval)) to list

A= ' {' name ': ' Yct ', ' Age ': 10} '

>>> Eval (a) to dictionary

{' Age ': Ten, ' name ': ' YCT '}

Python string/tuple/list/dictionary cross-transfer