20个关于文件操作的Python脚本

以下是20个关于文件操作的Python脚本示例：

1. 读取文件内容

with open("file.txt", "r") as file:
    content = file.read()
print(content)
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2. 写入文件内容

with open("file.txt", "w") as file:
    file.write("Hello, World!")
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3. 追加文件内容

with open("file.txt", "a") as file:
    file.write("Hello, again!")
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4. 逐行读取文件

with open("file.txt", "r") as file:
    for line in file:
        print(line.strip())
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5. 逐行写入文件

with open("file.txt", "w") as file:
    lines = ["Line 1
", "Line 2
", "Line 3
"]
    file.writelines(lines)
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6. 复制文件

with open("source.txt", "r") as source_file, open("destination.txt", "w") as destination_file:
    destination_file.write(source_file.read())
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7. 移动文件

import shutil

shutil.move("source.txt", "destination.txt")
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8. 删除文件

import os

os.remove("file.txt")
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9. 重命名文件

import os

os.rename("old_name.txt", "new_name.txt")
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10. 获取文件大小

import os

file_size = os.path.getsize("file.txt")
print(f"File size: {file_size} bytes")
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11. 获取文件最后修改时间

import os
import time

last_modified = os.path.getmtime("file.txt")
print(f"Last modified: {time.ctime(last_modified)}")
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12. 创建目录

import os

os.mkdir("directory")
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13. 删除目录

import os

os.rmdir("directory")
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14. 列出目录内容

import os

directory_content = os.listdir("directory")
print(directory_content)
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15. 更改当前工作目录

import os

os.chdir("directory")
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16. 获取当前工作目录

import os

current_directory = os.getcwd()
print(current_directory)
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17. 检查文件是否存在

import os

if os.path.exists("file.txt"):
    print("File exists")
else:
    print("File does not exist")
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18. 检查路径是否为文件

import os

if os.path.isfile("file.txt"):
    print("Path is a file")
else:
    print("Path is not a file")
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19. 检查路径是否为目录

import os

if os.path.isdir("directory"):
    print("Path is a directory")
else:
    print("Path is not a directory")
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20. 遍历目录树

import os

def traverse_directory_tree(directory):
    for root, dirs, files in os.walk(directory):
        print(f"Directory: {root}")
        for file in files:
            print(f"File: {os.path.join(root, file)}")

traverse_directory_tree("directory")
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