How to read txt files in python?
Two ways to open files
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Recommended: Python tutorial
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 the array
import numpy as np
data = np.loadtxt("data.txt") #将文件中数据加载到data数组里The above is the detailed content of How to read txt file in python. For more information, please follow other related articles on the PHP Chinese website!
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