从for循环创建列表

Question

this is my code so far

print("L = ",[4,10,4,2,9,5,4])

Startlist = [4,10,4,2,9,5,4]
usrinput = int(input("Enter an element to search for in the list: "))
for i in [i for i,x in enumerate(Startlist) if x == usrinput]:
    print(i)

I'm trying to however make a new list from the for loops printed numbers.This is the sample run i got by entering 4

L =  [4, 10, 4, 2, 9, 5, 4]
Enter an element to search for in the list: 4
0
2
6

how could i turn the 0 2 6 into [0,2,6]?

Thanks for any responses

Answer 1

只需打印列表理解：

print([i for i,x in enumerate(Startlist) if x == usrinput])

Answer 2

You already made the list! The heavy lifting in your code is in the temporary array you created and iterated over.

 newlist = [i for i,x in enumerate(Startlist) if x == usrinput]