Question

列表可以

mylist = ['a',1,2,'b',3,4,'c',5,6]

用于创建字典

mydict = {'a':(1,2),'b':(3,4),'c':(5,6)}

Answer 1

您可以尝试这样的事情：

>>> mylist = ['a',1,2,'b',3,4,'c',5,6]
>>> 
>>> v = iter(mylist)
>>> mydict = {s: (next(v),next(v)) for s in v}
>>> mydict
{'a': (1, 2), 'c': (5, 6), 'b': (3, 4)}

Answer 2

只有你有某种标准才是关键。如果字符串是键，那么：

d = {}
key = None
for item in my_list:
    if isinstance(item, str):
        key = item
    else:
        d.setdefault(key, []).append(item)

Answer 3

>>> dict((x, (y, z)) for (x, y, z) in zip(*[iter(['a',1,2,'b',3,4,'c',5,6])]*3)) 
{'a': (1, 2), 'c': (5, 6), 'b': (3, 4)}

Answer 4

mylist = ['a',1,2,'b',3,4,'c',5,6]

mydict = {}

for i in range(len(mylist))[::3]:

    mydict[mylist[i]] = (mylist[i+1],mylist[i+2])

Answer 5

是的，但您的mydict应该使用围绕字符串的引号和列表周围的方括号创建：

mydict = {"a":[1,2],"b":[3,4],"c":[5,6]}

否则，如果您希望使用该列表以编程方式创建字典：

mydict = {}
i = 0
while i < len(mylist):
    mydict[mylist[i]] = [mylist[i+1], mylist[i+2]]
    i = i + 3

用于每个键的多个值的Python列表

5 个答案: