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'}
python中,经常遇到字符串需要转换成字典的情况,那么,如何将字符串转化成字典呢?方法如下:
使用 literal_eval
导包ast