我希望能够增加列表的名称,以便创建多个空列表.
例如,我想要.
List_1 = []
List_2 = []
...
List_x = []
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我一直在努力:
for j in range(5): #set up loop
list_ = list_ + str(j) # increment the string list so it reads list_1, list_2, ect
list_ = list() # here I want to be able to have multiple empty lists with unique names
print list_
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Don*_*ner 15
正确的方法是列出一个列表.
list_of_lists = []
for j in range(5):
list_of_lists.append( [] )
print list_of_lists[j]
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然后,您可以访问它们:
list_of_lists[2] # third empty list
list_of_lists[0] # first empty list
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如果你真的想这样做,尽管你可能不应该这样做,你可以使用exec:
for j in range(5):
list_name = 'list_' + str(j)
exec(list_name + ' = []')
exec('print ' + list_name)
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这会在字符串下创建名称list_name,然后用于exec执行该动态代码段.