我想打印从 1 到 n 的数字，但在运行此代码后，出现“核心转储”错误

Question

i want to print number from 1 to n but after running this code, error "core dumped" occured. I know code works well if i change self to n but why not self ???

n = int(input("?"))

def again_book(self):
    if n > 0:
        again_book(self - 1)
    print(self)

again_book(n)

Answer 1

Your code is not working because you are never changing the n variable. In your function you're checking if n > 0 and it will always be

Here is a fix:

n = int(input("?"))

def again_book(self):
    if self > 0:
        again_book(self - 1)
    print(self)

again_book(n)

Another way of doing it is using a while loop:

n = int(input("?"))
x = 0

while x < n:
    print(x)
    x += 1

Answer 2

I think you can use list comprehension
[num for num in range(num_limit)]

Answer 3

Self is used when you have to pass object itself. further you can read from here