标签:pad 方法 嵌套列表 python 字典 span for col add
# 在有两个列表, list1 = [‘key1‘,‘key2‘,‘key3‘] 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‘} # 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‘}
标签:pad 方法 嵌套列表 python 字典 span for col add
原文地址:https://www.cnblogs.com/wordgao/p/9824460.html