如何在 Python 中创建文件夹和保存文件
创建文件夹
要使用 Python 创建文件夹,可以使用 os
模块中 makedirs()
函数:
import os # 创建名为 "new_folder" 的文件夹 os.makedirs("new_folder")
makedirs()
函数可以递归创建不存在的父目录。
保存文件
要使用 Python 保存文件,可以使用 open()
函数:
import os # 打开一个名为 "test.txt" 的文件,并以写入模式 "w" 打开 with open("test.txt", "w") as f: # 将内容写入文件 f.write("你好,世界!")
with
语句确保文件在完成写入操作后被正确关闭。
示例
将以下代码保存为 create_folder_and_save_file.py
:
import os # 创建名为 "new_folder" 的文件夹 os.makedirs("new_folder") # 在 "new_folder" 中打开一个名为 "test.txt" 的文件,并以写入模式 "w" 打开 with open(os.path.join("new_folder", "test.txt"), "w") as f: # 将内容写入文件 f.write("你好,世界!")
运行该代码将创建一个名为 "new_folder" 的文件夹,并在其中保存一个名为 "test.txt" 的文件,内容为 "你好,世界!"。
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