如何使用Flask上传或存储文件夹中的图像？

from flask import Flask, request
import os

app = Flask(__name__)

app.config['UPLOAD_FOLDER'] = 'path/to/save/uploads'

@app.route('/upload', methods=['POST'])
def upload():
    # 检查是否有文件被上传
    if 'file' not in request.files:
        return 'No file uploaded'

    file = request.files['file']

    # 检查文件名是否为空
    if file.filename == '':
        return 'Invalid file name'

    # 将文件保存到指定路径
    file.save(os.path.join(app.config['UPLOAD_FOLDER'], file.filename))

    return 'File uploaded successfully'

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