[英]How do I create a list from one list of integers and one list of booleans? (Python)
eg suppose I have two lists:例如,假设我有两个列表:
list1 = [1,2,3,4,5,6]
list2 = [False,True,False,True,False,False]
How can i create the list below (only using items in list1 that correspond to false in list2 by index position?我如何创建下面的列表(仅使用 list1 中按索引位置对应于 list2 中的 false 的项目?
list3 = [1,3,5,6]
Thanks谢谢
Use .zip
使用
.zip
list1 = [1,2,3,4,5,6]
list2 = [False,True,False,True,False,False]
list3=[j for i,j in zip(list2,list1) if i==False]
print(list3)
list1 = [1,2,3,4,5,6]
list2 = [False,True,False,True,False,False]
list3=[]
for i in range(0,len(list1)):
if list2[i] == False:
list3.append(list1[i])
Just use Boolean Logic and list comprehensions:只需使用布尔逻辑和列表推导式:
list1 = [1,2,3,4,5,6]
list2 = [False,True,False,True,False,False]
print([i[0] for i in zip(list1,list2) if not i[1]]) # this just includes an element if that element's corresponding value in the second list is False
This outputs:这输出:
[1, 3, 5, 6]
list1 = [1,2,3,4,5,6]
list2 = [False,True,False,True,False,False]
list3=[]
for i in range(len(list1)):
if list2[i]==False:
list3.append(list1[i])
list1 = [1,2,3,4,5,6]
list2 = [False,True,False,True,False,False]
output = list (map (lambda x,y: x if y == False else '', list1,list2))
while '' in output:
output.remove('')
print(output)
Outputs [1, 3, 5, 6]输出 [1, 3, 5, 6]
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