Question

python dict怎么转成list？

Answer 1

通常dict转list：

dic = dict(a=1, b=2, c='something')

result = list(dic.items())

dict没办法转换成一个list

倒是dict的键和值可以分别转换为一个listmylist=[]

forainrange(0,10000):

mylist.append((a,a+1,a+2,a+3,a+4))

myDict={}

forkeyinmylist:

myDict[key[0]]=key[1:]

printmyDict

usr/bin/envpython

coding:utf-8-

list_=[(1,0.2,90,24,21),(2,0.2,90,24,21),(3,0.2,90,24,21)]

dict_={i[0]:i[1:]foriinlist_}

#dict_={str(i[0]):i[1:]foriinlist_}

printdict_

RESTART:C:/Users/Administrator/Deskto{1:(0.2,90,24,21),2:(0.2,90,24,21),3:(0.2,90,24,21)}

Answer 2

dict没办法转换成一个list
倒是dict的键和值可以分别转换为一个list
1234567d = {'a':97,'b':98,'c':99}l1 = d.keys()print l1# ['a', 'c', 'b']l2 = d.values()print l2# [97, 99, 98]
因为dict本身没有顺序，转换结果的顺序不能保证。