Python字符串、元组、列表、字典互相转换的方法

WBOY
Release: 2016-06-10 15:06:26
Original
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废话不多说了,直接给大家贴代码了,代码写的不好还去各位大侠见谅。

#-*-coding:utf-8-*- 
#1、字典
dict = {'name': 'Zara', 'age': 7, 'class': 'First'}
#字典转为字符串,返回:<type 'str'> {'age': 7, 'name': 'Zara', 'class': 'First'}
print type(str(dict)), str(dict)
#字典可以转为元组,返回:('age', 'name', 'class')
print tuple(dict)
#字典可以转为元组,返回:(7, 'Zara', 'First')
print tuple(dict.values())
#字典转为列表,返回:['age', 'name', 'class']
print list(dict)
#字典转为列表
print dict.values
#2、元组
tup=(1, 2, 3, 4, 5)
#元组转为字符串,返回:(1, 2, 3, 4, 5)
print tup.__str__()
#元组转为列表,返回:[1, 2, 3, 4, 5]
print list(tup)
#元组不可以转为字典
#3、列表
nums=[1, 3, 5, 7, 8, 13, 20];
#列表转为字符串,返回:[1, 3, 5, 7, 8, 13, 20]
print str(nums)
#列表转为元组,返回:(1, 3, 5, 7, 8, 13, 20)
print tuple(nums)
#列表不可以转为字典
#4、字符串
#字符串转为元组,返回:(1, 2, 3)
print tuple(eval("(1,2,3)"))
#字符串转为列表,返回:[1, 2, 3]
print list(eval("(1,2,3)"))
#字符串转为字典,返回:<type 'dict'>
print type(eval("{'name':'ljq', 'age':24}"))

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