python 数组 变成 字典的方法

Posted 2021-02-16 凯宾斯基

1、现在有两个列表，list1 = [\'key1\',\'key2\',\'key3\']和list2 = [\'1\',\'2\',\'3\']，把他们转为这样的字典：{\'key1\':\'1\',\'key2\':\'2\',\'key3\':\'3\'}

>>>list1 = [\'key1\',\'key2\',\'key3\']

>>>list2 = [\'1\',\'2\',\'3\']

>>>dict(zip(list1,list2))

{\'key1\':\'1\',\'key2\':\'2\',\'key3\':\'3\'}

2、将嵌套列表转为字典，有两种方法，

>>>new_list= [[\'key1\',\'value1\'],[\'key2\',\'value2\'],[\'key3\',\'value3\']]

>>>dict(list)

{\'key3\': \'value3\', \'key2\': \'value2\', \'key1\': \'value1\'}

或者这样：

>>>new_list= [[\'key1\',\'value1\'],[\'key2\',\'value2\'],[\'key3\',\'value3\']]

>>>new_dict = {}

>>> for i in new_list:

...   new_dict[i[0]] = i[1]                #字典赋值，左边为key，右边为value

...

>>> new_dict

{\'key3\': \'value3\', \'key2\': \'value2\', \'key1\': \'value1\'}

 

来源: https://www.cnblogs.com/lxs1314/p/6877922.html

字典变成数组的方法: https://www.cnblogs.com/kaibindirver/p/12222782.html