feat(第7讲 字母卡牌): 实现记忆游戏并添加开始界面
- 新增 jiyi.py 文件，实现字母翻牌记忆游戏功能 - 添加 youxijiemian.py 文件，创建游戏开始界面 - 使用 turtle 和 tkinter 模块分别实现游戏和界面 - 支持选择不同难度的游戏模式
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test.py
78
test.py
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import turtle
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turtle.listen()
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turtle.onscreenclick(print)
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turtle.done()
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students={
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"0001":{
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"name":"张三",
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"sex":"男",
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"age":18,
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"score":[90,80,70]
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},
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"0002":{
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"name":"李四",
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"sex":"女",
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"age":19,
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"score":[80,90,80]
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}
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}
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while True:
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print("="*5+"学生管理系统"+"="*5)
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print("1.查询学生信息")
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print("2.添加学生信息")
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print("3.删除学生信息")
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print("4.修改学生信息")
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print("5.列出所有学生信息")
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print("6.退出")
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choice=input("请输入你的选择：")
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if choice=="1":
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name=input("请输入学生姓名：")
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for k,v in students.items():
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if v["name"]==name:
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print("学号 \t姓名 \t性别 \t年龄 \t语文成绩 \t数学成绩 \t英语成绩")
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print("%s \t%s \t%s \t%d \t%d \t%d \t%d" % (k, v["name"], v["sex"], v["age"], v["score"][0], v["score"][1], v["score"][2]))
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break
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else:
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print("没有此学生")
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elif choice=="2":
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sid=input("请输入学号：")
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if students.get(sid):
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print("此学号已存在")
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else:
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name=input("请输入学生姓名：")
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sex=input("请输入学生性别：")
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age=int(input("请输入学生年龄："))
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score=[int(x) for x in input("请输入学生成绩：").split(",")]
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students[sid]={"name":name,"sex":sex,"age":age,"score":score}
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print("添加成功")
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elif choice== "3":
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name=input("请输入学生姓名：")
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for k,v in students.items():
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if v["name"]==name:
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del students[k]
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print("删除成功")
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break
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else:
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print("没有此学生")
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elif choice=="4":
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name=input("请输入学生姓名：")
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for k,v in students.items():
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if v["name"]==name:
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v["name"]=input("请输入学生姓名：")
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v["sex"]=input("请输入学生性别：")
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v["age"]=int(input("请输入学生年龄："))
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v["score"]=[int(x) for x in input("请输入学生成绩：").split(",")]
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print("修改成功")
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break
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else:
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print("没有此学生")
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elif choice=="5":
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print("所有学生信息为：")
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print("学号 \t姓名 \t性别 \t年龄 \t语文成绩 \t数学成绩 \t英语成绩")
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for k,v in students.items():
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print("%s\t%s \t%s \t%d \t%d \t%d \t%d"%(k,v["name"],v["sex"],v["age"],v["score"][0],v["score"][1],v["score"][2]))
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elif choice== "6":
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break
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else:
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print("输入错误")
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4
第22讲手势识别/课堂成果/README.md
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第22讲手势识别/课堂成果/README.md
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```bash
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#阿里云镜像源
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pip install -i https://mirrors.aliyun.com/pypi/simple/ opencv-python mediapipe
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```
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76
第22讲手势识别/课堂成果/手势识别.py
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第22讲手势识别/课堂成果/手势识别.py
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import cv2 # 导入 OpenCV，用于视频捕获和图像处理
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import mediapipe as mp # 导入 MediaPipe，用于手部关键点检测
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# =================== 初始化 MediaPipe 模块 ===================
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# 获取 MediaPipe 手部识别模块
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mp_hands = mp.solutions.hands
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# 创建 Hands 对象，用于处理图像中的手部关键点
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# 默认参数含义：
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# - static_image_mode=False：处理连续视频流（非静态图片）
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# - max_num_hands=2：最多检测2只手
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# - min_detection_confidence=0.5：置信度低于0.5的检测结果将被忽略
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hands = mp_hands.Hands()
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# 获取用于绘制关键点和连接线的工具
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mp_draw = mp.solutions.drawing_utils
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# =================== 初始化摄像头 ===================
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# 打开默认摄像头（设备编号为0）
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cap = cv2.VideoCapture(0)
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# =================== 主循环，逐帧处理 ===================
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while True:
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# 捕获一帧图像
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ret, frame = cap.read()
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# 如果捕获失败，退出循环
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if not ret:
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break
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# 水平翻转图像（摄像头默认是镜像视角，翻转后更自然）
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frame = cv2.flip(frame, 1)
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# OpenCV 默认使用 BGR 格式，而 MediaPipe 要求输入 RGB 格式图像
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rgb_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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# 使用 MediaPipe 的 hand 模块处理当前帧，检测手部关键点
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results = hands.process(rgb_frame)
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# =================== 处理检测结果 ===================
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# 如果检测到了手部
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if results.multi_hand_landmarks:
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# 遍历每只手
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for landmarks in results.multi_hand_landmarks:
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# 在原图上绘制21个关键点及其连接骨骼（HAND_CONNECTIONS）
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mp_draw.draw_landmarks(frame, landmarks, mp_hands.HAND_CONNECTIONS)
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# 提取21个关键点的 Landmark 对象（含 x, y, z 三维坐标）
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landmark_points = [landmarks.landmark[i] for i in range(21)]
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# =================== 手势识别部分（可拓展） ===================
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# 例如：判断是否为“比赞”手势（此处未实现具体函数）
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# if detect_thumb_up(landmark_points):
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# cv2.putText(frame, "Thumb Up!", (50, 100),
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# cv2.FONT_HERSHEY_SIMPLEX, 1, (0, 255, 0), 2)
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# =================== 显示图像 ===================
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# 显示处理后的视频帧（窗口标题为 Hand Gesture Detection）
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cv2.imshow('Hand Gesture Detection', frame)
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# 等待键盘事件，如果按下 'q' 键则退出程序
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if cv2.waitKey(1) & 0xFF == ord('q'):
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break
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# =================== 清理资源 ===================
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# 释放摄像头
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cap.release()
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# 销毁所有 OpenCV 窗口
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cv2.destroyAllWindows()
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import turtle
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#右键点击两个格，内容会交换
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qipan=[(-50,150),(50,150),(-150,50),(-150,-50)]
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t1=turtle.Turtle()
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85
第6讲太阳系/课堂成果/交换井字棋.py
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第6讲太阳系/课堂成果/交换井字棋.py
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import tkinter as tk
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from tkinter import messagebox
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class SneakyTicTacToe:
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def __init__(self, root):
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self.root = root
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self.size = 7 # 实际棋盘大小
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self.board = [["" for _ in range(self.size)] for _ in range(self.size)]
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self.current_player = "X"
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self.buttons = [[None for _ in range(self.size)] for _ in range(self.size)]
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# 记录右键点击的两个格子
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self.swap_selection = []
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for i in range(self.size):
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for j in range(self.size):
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btn = tk.Button(root, text="", font=("Arial", 24), width=3, height=1)
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btn.grid(row=i+1, column=j)
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btn.config(command=lambda r=i, c=j: self.on_click(r, c))
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btn.bind("<Button-3>", lambda e, r=i, c=j: self.on_right_click(r, c)) # 右键绑定
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self.buttons[i][j] = btn
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root.geometry(f"{3*65}x{3*63}") # 默认窗口大小
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def on_click(self, r, c):
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if self.board[r][c] != "":
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return
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self.board[r][c] = self.current_player
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self.buttons[r][c].config(text=self.current_player)
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if self.check_winner(self.current_player):
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messagebox.showinfo("🎉 游戏结束", f"玩家 {self.current_player} 获胜！")
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self.reset()
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elif self.is_draw():
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messagebox.showinfo("😐 游戏结束", "平局")
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self.reset()
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else:
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self.current_player = "O" if self.current_player == "X" else "X"
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def on_right_click(self, r, c):
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# 只允许选择非空格子进行交换
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if self.board[r][c] == "":
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return
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self.swap_selection.append((r, c))
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if len(self.swap_selection) == 2:
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(r1, c1), (r2, c2) = self.swap_selection
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# 交换 board 内容
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self.board[r1][c1], self.board[r2][c2] = self.board[r2][c2], self.board[r1][c1]
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self.buttons[r1][c1].config(text=self.board[r1][c1])
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self.buttons[r2][c2].config(text=self.board[r2][c2])
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self.swap_selection.clear()
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def check_winner(self, player):
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for i in range(self.size):
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for j in range(self.size):
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if j + 2 < self.size and all(self.board[i][j+k] == player for k in range(3)):
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return True
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if i + 2 < self.size and all(self.board[i+k][j] == player for k in range(3)):
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return True
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if i + 2 < self.size and j + 2 < self.size and all(self.board[i+k][j+k] == player for k in range(3)):
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return True
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if i + 2 < self.size and j - 2 >= 0 and all(self.board[i+k][j-k] == player for k in range(3)):
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return True
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return False
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def is_draw(self):
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return all(self.board[i][j] != "" for i in range(self.size) for j in range(self.size))
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def reset(self):
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for i in range(self.size):
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for j in range(self.size):
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self.board[i][j] = ""
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self.buttons[i][j].config(text="")
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self.current_player = "X"
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self.swap_selection.clear()
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# 启动游戏
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if __name__ == "__main__":
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root = tk.Tk()
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game = SneakyTicTacToe(root)
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root.mainloop()
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from turtle import *
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import random
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tracer(False)
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tracer(False)#跳过绘画过程
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bgpic("dot.png")
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setup(1200,800)
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t=Pen()
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t.ht()
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t.ht()#隐藏画笔
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t.penup()
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nei=0
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total=0
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t2=Pen()
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t2.ht()
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t2.penup()
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t2.goto(380,-50)
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while True:
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x=random.randint(-200,200)
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y=random.randint(-200,200)
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pai=4*nei/total
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t2.clear()
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t2.write("{}\n\n{}\n\n{}".format(nei,total,round(pai,4)),font=("宋体",25,'bold'))
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update()
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update()
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bgpic("China.png")
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setup(1200,800)
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tracer(False)
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tracer(False)#画笔不刷新
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h=Pen()
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m=Pen()
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