安装依赖 pip install flask -i https://pypi.douban.com/simple pip install flask_cors -i https://pypi.douban.com/simple 简单示例 # app.py from flask import Flask, request, send_from_directory, jsonify from flask_cors import CORSapp = Flask(__name__) # 创建flask应用 CORS(app) # 支持跨域访问# 默认为get请求 @app.route('/hello') def hello():return 'hello world' # 返回text/html类型响应，是一个html文件，<body>hello world</body># 上传文件 @app.route('/upload', methods=['POST']) def upload():f = request.files['filename']f.save('xxx.txt')# jsonify()返回application/json类型的响应 request.json解析post的json数据return jsonify({'message': 'upload success'}) # 文件服务器 @app.route('/download/<path:name>') def download(name):return send_from_directory(r'E:\xxx\xxx', name, as_attachment=True)if __name__ == '__main__':app.run(host='0.0.0.0', port=8080, debug=True) 启动 python app.py
