python
# 同级
from one import func1
print(func1(6))
# 子文件夹
from file2.three import func3
print(func3(6))
# 上一级
import sys
import os
current_dir = os.path.dirname(os.getcwd())
print(current_dir)
sys.path.append(current_dir)
from two import func2
print(func2(6))
目录结构:

结果
