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python 列表转为字典的两个小方法

python 列表转为字典的两个小方法

作者: 我爱学python | 来源:发表于2019-10-11 14:25 被阅读0次

    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,

    '''
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    '''
    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'}
    

    示例:

    tu = ['alex','seven']
    li_val = []
    for i in range(len(tu)):
        li_val.append(i+10)
    print(li_val)
    new_dict = dict(zip(li_val,tu))
    print(new_dict)
    

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