以下是一个使用 Python 和 Flask 框架实现的简单文件管理系统，包含增删改查以及登陆注册功能的示例代码。此代码可以在 PyCharm 中运行。 ```python from flask import Flask, request, jsonify, session import os app = Flask(__name__) app.secret_key = 'your_secret_key' users = {} BASE_DIR = 'files' if not os.path.exists(BASE_DIR): os.makedirs(BASE_DIR) # 注册功能 @app.route('/register', methods=['POST']) def register(): data = request.get_json() username = data.get('username') password = data.get('password') if username in users: return jsonify({"message": "用户名已存在"}), 400 users[username] = password return jsonify({"message": "注册成功"}), 201 # 登录功能 @app.route('/login', methods=['POST']) def login(): data = request.get_json() username = data.get('username') password = data.get('password') if username in users and users[username] == password: session['username'] = username return jsonify({"message": "登录成功"}), 200 return jsonify({"message": "用户名或密码错误"}), 401 # 检查用户是否登录 def is_logged_in(): return 'username' in session # 创建文件 @app.route('/files', methods=['POST']) def create_file(): if not is_logged_in(): return jsonify({"message": "请先登录"}), 401 data = request.get_json() file_name = data.get('file_name') content = data.get('content') file_path = os.path.join(BASE_DIR, session['username'], file_name) user_dir = os.path.join(BASE_DIR, session['username']) if not os.path.exists(user_dir): os.makedirs(user_dir) try: with open(file_path, 'w') as f: f.write(content) return jsonify({"message": "文件创建成功"}), 201 except Exception as e: return jsonify({"message": f"文件创建失败: {str(e)}"}), 500 # 读取文件 @app.route('/files/<file_name>', methods=['GET']) def read_file(file_name): if not is_logged_in(): return jsonify({"message": "请先登录"}), 401 file_path = os.path.join(BASE_DIR, session['username'], file_name) if os.path.exists(file_path): try: with open(file_path, 'r') as f: content = f.read() return jsonify({"file_name": file_name, "content": content}), 200 except Exception as e: return jsonify({"message": f"文件读取失败: {str(e)}"}), 500 return jsonify({"message": "文件不存在"}), 404 # 更新文件 @app.route('/files/<file_name>', methods=['PUT']) def update_file(file_name): if not is_logged_in(): return jsonify({"message": "请先登录"}), 401 data = request.get_json() content = data.get('content') file_path = os.path.join(BASE_DIR, session['username'], file_name) if os.path.exists(file_path): try: with open(file_path, 'w') as f: f.write(content) return jsonify({"message": "文件更新成功"}), 200 except Exception as e: return jsonify({"message": f"文件更新失败: {str(e)}"}), 500 return jsonify({"message": "文件不存在"}), 404 # 删除文件 @app.route('/files/<file_name>', methods=['DELETE']) def delete_file(file_name): if not is_logged_in(): return jsonify({"message": "请先登录"}), 401 file_path = os.path.join(BASE_DIR, session['username'], file_name) if os.path.exists(file_path): try: os.remove(file_path) return jsonify({"message": "文件删除成功"}), 200 except Exception as e: return jsonify({"message": f"文件删除失败: {str(e)}"}), 500 return jsonify({"message": "文件不存在"}), 404 if __name__ == '__main__': app.run(debug=True) ``` ###