重命名現(xiàn)有文件 (Renaming an existing file)

To change the name of an existing file – we use "rename()" method of "os" module – so to access the "rename()" method, we must have to import the module "os".

要更改現(xiàn)有文件的名稱 –我們使用“ os”模塊的“ rename()”方法 –因此要訪問“ rename()”方法 ，我們必須導(dǎo)入模塊“ os” 。

Module import statement: import os

模塊導(dǎo)入語句： import os

Syntax of rename() method: os.rename(src, dest)

named ()方法的語法： os.rename(src，dest)

Here, src is the name to the source file (old file) and dest is the name of the destination file (new file name).

在這里， src是源文件(舊文件)的名稱， dest是目標(biāo)文件的名稱(新文件的名稱)。

Example:

例：

Here is the code to change the name of an existing filename in python... In this example, we are creating a file file1.txt and writing "Hello" in it, then, we are closing the file, renaming file1.txt to myfile.txt. To verify the operations, checking file1.txt exists or not – if file1.txt does not exist, checking myfile.txt if it exists – printing its content and the content will be 'Hello" – which we have written in file1.txt.

這是在python中更改現(xiàn)有文件名的代碼...在此示例中，我們創(chuàng)建文件file1.txt并在其中寫入“ Hello” ，然后關(guān)閉文件，將file1.txt重命名為myfile.txt 。 要驗(yàn)證操作，請(qǐng)檢查file1.txt是否存在–如果file1.txt不存在，則檢查myfile.txt是否存在–打印其內(nèi)容，并且內(nèi)容為“ Hello” –我們已經(jīng)在file1.txt中編寫了該內(nèi)容。

import osdef main():# creating a file firstfo = open("file1.txt","wt")# writing data in itfo.write("Hello")# closing the filefo.close()# changing the file nameos.rename("file1.txt", "myfile.txt")# checking that file1.txt exists or not# if does not exist - will open myfile and readif not(os.path.exists("file1.txt")):print("file1.txt does not exist.")# checking myfile, and read its content if os.path.exists("myfile.txt"):print("myfile.txt exists, reading its content...")# opening filefo = open("myfile.txt", "rt")# reading its contentstr = fo.read()# printing the content print("Content of the file: ")print(str)else:print("Operation failed.")if __name__=="__main__":main()

Output

輸出量

file1.txt does not exist. myfile.txt exists, reading its content... Content of the file: Hello

翻譯自: https://www.includehelp.com/python/rename-an-existing-file-example-of-os-rename-method.aspx

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