如何在flask网站中更新和删除csv数据

import csv
from flask import Flask, request

app = Flask(__name__)

@app.route('/update_csv', methods=['POST'])
def update_csv():
    if request.method == 'POST':
        data = request.form  # 假设数据通过表单提交
        filename = 'data.csv'
        
        # 读取CSV文件
        with open(filename, mode='r', newline='') as file:
            reader = csv.DictReader(file)
            rows = list(reader)
        
        # 更新数据
        for row in rows:
            if row['id'] == data['id']:
                row.update(data)
        
        # 写回CSV文件
        with open(filename, mode='w', newline='') as file:
            fieldnames = rows[0].keys()
            writer = csv.DictWriter(file, fieldnames=fieldnames)
            writer.writeheader()
            writer.writerows(rows)
        
        return 'Data updated successfully'

if __name__ == '__main__':
    app.run(debug=True)

import csv
from flask import Flask, request

app = Flask(__name__)

@app.route('/delete_csv', methods=['POST'])
def delete_csv():
    if request.method == 'POST':
        data = request.form  # 假设数据通过表单提交
        filename = 'data.csv'
        
        # 读取CSV文件
        with open(filename, mode='r', newline='') as file:
            reader = csv.DictReader(file)
            rows = list(reader)
        
        # 删除数据
        rows = [row for row in rows if row['id'] != data['id']]
        
        # 写回CSV文件
        with open(filename, mode='w', newline='') as file:
            fieldnames = rows[0].keys()
            writer = csv.DictWriter(file, fieldnames=fieldnames)
            writer.writeheader()
            writer.writerows(rows)
        
        return 'Data deleted successfully'

if __name__ == '__main__':
    app.run(debug=True)