如何在python中从文本文件中单独拆分数字？

import re

def extract_numbers_from_file(file_path):
    with open(file_path, 'r') as file:
        content = file.read()
        numbers = re.findall(r'\d+', content)
        return numbers

file_path = 'example.txt'
numbers = extract_numbers_from_file(file_path)
print(numbers)

def extract_numbers_from_file(file_path):
    with open(file_path, 'r') as file:
        content = file.read()
        numbers = content.split()
        numbers = [int(num) for num in numbers if num.isdigit()]
        return numbers

file_path = 'example.txt'
numbers = extract_numbers_from_file(file_path)
print(numbers)