Question

python列表如何转字典？ 取相同key值把values相加

比如说我有以下列表：
['apple','ios','100','10'],['pear','android','200','20'],['apple','ios','500','50'],['pear','android','600','60']
好像能通过Python的join,把该列表转化为字典？？字典的key值为【'apple','ios'】和【'pear','android'】，把对应的values【100+500】【10+50】，【200+600】【20+60】相加，要实现的结果如下：
['apple','ios','600','60']，['pear','android','800','80']

具体用python怎么实现，正在学习中~请大侠指教下详细代码怎么写，万分感谢！！！

Answer 1

mobile=[['apple','ios','100','10'],['pear','android','200','20'],['apple','ios','500','50'],['pear','android','600','60']]
mobiledict={}
for elem in mobile:
    key=(elem[0],elem[1])
    if key in mobiledict:
        mobiledict[key][0]+=int(elem[2])
        mobiledict[key][1]+=int(elem[3])
    else:
        mobiledict[key]=[int(elem[2]),int(elem[3])]
print(mobiledict)