python文件读取和导包的绝对路径、相对路径详解

# @File : platform.py.py

"""1、绝对路径读取文件"""
with open(r"C:\Users\chengjingd\PycharmProjects\pythonProject13\testa\platform\myprocessor\test2.txt", 'r') as f:
    print(f.read())
    
"""2、相对路径读取文件"""
# 读取下一层目录的test2.txt文件
with open("myprocessor/test2.txt", 'r') as f:
    print(f.read())

# 读取同层目录的test1.txt
with open("test1.txt", 'r') as f:
    print(f.read())

# 读取上一层目录的test.txt文件
with open("../test.txt", 'r') as f:
    print(f.read())

# @File : platform1.py.py
from testa.platform.myprocessor.myprocessor import *
# 引用同级目录的模块
from a import *
# 引用下一级目录的模块
from myprocessor.myprocessor import *
# 引用上一级目录的模块
from testa.main import *

"""在myprocessor.py内导入同等级目录的cite_f"""
# @File : myprocessor.py.py
from .cite_f import f
"""在上一层目录里的platform1.py调用myprocessor.py"""
# @File : platform1.py.py
from myprocessor.myprocessor import *

"""在myprocessor.py内导入同等级目录的cite_f及上层目录的platform1.py"""
# @File : myprocessor.py.py
from .cite_f import f
from ..platform1 import *
"""在上上一层目录里的main.py调用myprocessor.py"""
# @File : main.py.py
from testa.platform.myprocessor.myprocessor import *

# @File : myprocessor.py.py
import os
print("当前工作路径：",os.getcwd())
print("绝对路径：",os.path.abspath(__file__))
# @File : platform1.py.py
from myprocessor.myprocessor import *