How to read data in python

In python, there are many ways to read data. Here are some common methods:

1. Use the open function to open the file, and then use the read method to read the data in the file:

file = open("data.txt", "r")# 打开文件
data = file.read()# 读取文件中的数据
file.close()# 关闭文件

2. Use the with statement combined with the open function to automatically close the file:

with open("data.txt", "r") as file:
data = file.read()# 读取文件中的数据

3. To read data in CSV format, you can use the csv module:

import csv

with open("data.csv", "r") as file:
csv_reader = csv.reader(file)# 创建CSV读取器
for row in csv_reader:
print(row)# 打印每一行数据

4. To read data in JSON format, you can use the json module:

import json

with open("data.json", "r") as file:
data = json.load(file)# 加载JSON数据

These methods can be selected and adjusted according to different data formats and needs.

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