python几个list加入到dictionary中去

答案:将list加入到dictionary方法如下：

#方法1

listkey=list("abcde")#key

listvalue=list("12345")#value

dicta=dict(zip(listkey,listvalue))#dict

print(dicta)#返回{'a': '1', 'b': '2', 'c': '3', 'd': '4', 'e': '5'}

#方法2

listkey=['a', 'b', 'c', 'd', 'e']

listvalue=['1', '2', '3', '4', '5']

dicta={key:value for key,value in zip(listkey,listvalue)}

print(dicta)#返回{'a': '1', 'b': '2', 'c': '3', 'd': '4', 'e': '5'}

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'}

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