Also use open function .

1) In principle , Create should use x Pattern .

open(r".\newfile.txt","x")

Files will be created in the same directory newfile.txt.

however , If newfile.txt Already exist , May be an error ：

Traceback (most recent call last):
File "C:\Users\***\Desktop\MEME\1.py", line 1, in <module>
open(r".\newfile.txt","x")
FileExistsError: [Errno 17] File exists: '.\\newfile.txt'

therefore , A good solution ：

import os
if not os.path.exists(r".\newfile.txt"):
open(r".\newfile.txt","x")

Use os The module determines whether there is , Create if it does not exist .

2) Actually w The model is also good

w(write) Pattern , In theory, it is a write mode , But you can also create files .

Its greatest advantage is ： You can create an existing file without reporting an error .      

however ： Be careful ！！！！ The data of the existing file will be cleared

-_-||

So please be careful with .

3）w Mode writing

Write method ：

a=open(r".\ty.txt","w")
a.write("texture")

That's all .

however ： It will cover the original content .（ There are some shortcomings in the beauty ）

4) a Mode add

a（append） Mode will not be overwritten , Instead, add... At the end . however , If a The schema encountered a situation where the file does not exist , Will report a mistake （ No files found ）.

a=open(r".\ty.txt","a")
a.write("texture")

This line of code will add... At the end of the file 【texture】 Text .

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author: Unconquerable&Llxy

Unconquerable&Llxy The blog of _CSDN Blog -Python From negative infinity to ~,Vpython-3D,our project1 Domain Blogger Unconquerable&Llxy Good at Python From negative infinity to ~,Vpython-3D,our project1, And so on ,Unconquerable&Llxy Focus on python field .https://blog.csdn.net/html_finder?type=blog Welcome to visit ^_^