Two ways to open a file
f = open("data.txt","r") #设置文件对象 f.close() #关闭文件 #为了方便,避免忘记close掉这个文件对象,可以用下面这种方式替代 with open('data.txt',"r") as f: #设置文件对象 str = f.read() #可以是随便对文件的操作
How to read txt in python?
Reading files
1. Simply read the file into a string
f = open("data.txt","r") #设置文件对象 str = f.read() #将txt文件的所有内容读入到字符串str中 f.close() #将文件关闭
2. Read the entire file line by line
#第一种方法 f = open("data.txt","r") #设置文件对象 line = f.readline() line = line[:-1] while line: #直到读取完文件 line = f.readline() #读取一行文件,包括换行符 line = line[:-1] #去掉换行符,也可以不去 f.close() #关闭文件 #第二种方法 data = [] for line in open("data.txt","r"): #设置文件对象并读取每一行文件 data.append(line) #将每一行文件加入到list中 #第三种方法 f = open("data.txt","r") #设置文件对象 data = f.readlines() #直接将文件中按行读到list里,效果与方法2一样 f.close() #关闭文件
3. Read the file into an array
import numpy as np data = np.loadtxt("data.txt") #将文件中数据加载到data数组里
Related recommendations: "Python Tutorial》
The above is the detailed content of How to read txt in python. For more information, please follow other related articles on the PHP Chinese website!

The article discusses Python's new "match" statement introduced in version 3.10, which serves as an equivalent to switch statements in other languages. It enhances code readability and offers performance benefits over traditional if-elif-el

Exception Groups in Python 3.11 allow handling multiple exceptions simultaneously, improving error management in concurrent scenarios and complex operations.

Function annotations in Python add metadata to functions for type checking, documentation, and IDE support. They enhance code readability, maintenance, and are crucial in API development, data science, and library creation.

The article discusses unit tests in Python, their benefits, and how to write them effectively. It highlights tools like unittest and pytest for testing.

Article discusses access specifiers in Python, which use naming conventions to indicate visibility of class members, rather than strict enforcement.

Article discusses Python's \_\_init\_\_() method and self's role in initializing object attributes. Other class methods and inheritance's impact on \_\_init\_\_() are also covered.

The article discusses the differences between @classmethod, @staticmethod, and instance methods in Python, detailing their properties, use cases, and benefits. It explains how to choose the right method type based on the required functionality and da

InPython,youappendelementstoalistusingtheappend()method.1)Useappend()forsingleelements:my_list.append(4).2)Useextend()or =formultipleelements:my_list.extend(another_list)ormy_list =[4,5,6].3)Useinsert()forspecificpositions:my_list.insert(1,5).Beaware


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

SublimeText3 English version
Recommended: Win version, supports code prompts!

SublimeText3 Linux new version
SublimeText3 Linux latest version

Notepad++7.3.1
Easy-to-use and free code editor
