如何在python中保存csv字符串文件

import csv

csv_string = "Name,Age,City\nJohn,25,New York\nAlice,30,Los Angeles\nBob,35,San Francisco"

# 将字符串写入临时文件
with open('temp.csv', 'w', newline='') as file:
    file.write(csv_string)

# 使用csv模块读取临时文件并保存为CSV文件
with open('temp.csv', 'r') as file:
    reader = csv.reader(file)
    rows = list(reader)

with open('output.csv', 'w', newline='') as file:
    writer = csv.writer(file)
    writer.writerows(rows)

import pandas as pd

csv_string = "Name,Age,City\nJohn,25,New York\nAlice,30,Los Angeles\nBob,35,San Francisco"

# 使用pandas将CSV字符串保存为CSV文件
df = pd.read_csv(pd.compat.StringIO(csv_string))
df.to_csv('output.csv', index=False)