import tkinter as tk from tkinter import ttk, messagebox, scrolledtext import json import os import urllib.request import urllib.parse import threading # 数据文件名 DATA_FILE = "my_math_formulas.json" class ZeroDepMathApp: def __init__(self, root): self.root = root # 修改标题：去除了 Emoji self.root.title("数学公式查询 (零依赖版)") self.root.geometry("800x550") # 设置高DPI支持 (Windows) try: from ctypes import windll windll.shcore.SetProcessDpiAwareness(1) except: pass # 1. 加载数据 self.formulas = self.load_data() # 创建界面 self.create_ui() def load_data(self): """从本地JSON加载数据，如果没有则创建默认数据""" default_data = { "勾股定理": "a^2 + b^2 = c^2 (直角三角形)", "一元二次方程": "x = (-b +/- sqrt(b^2 - 4ac)) / 2a", "圆的面积": "S = pi * r^2", "圆的周长": "C = 2 * pi * r", "三角函数正弦": "sin(theta) = 对边 / 斜边", "欧拉公式": "e^(i*pi) + 1 = 0", "导数定义": "f'(x) = lim(h->0) [f(x+h) - f(x)] / h", "贝叶斯定理": "P(A|B) = [P(B|A) * P(A)] / P(B)", "球体体积": "V = (4/3) * pi * r^3", "等差数列求和": "Sn = n(a1 + an) / 2" } if os.path.exists(DATA_FILE): try: with open(DATA_FILE, 'r', encoding='utf-8') as f: data = json.load(f) print(f"已加载 {len(data)} 条本地公式。") return data except: pass # 首次运行保存默认数据 self.save_data(default_data) return default_data def save_data(self, data=None): """保存数据到本地JSON""" if data is None: data = self.formulas try: with open(DATA_FILE, 'w', encoding='utf-8') as f: json.dump(data, f, ensure_ascii=False, indent=4) return True except Exception as e: print(f"保存失败: {e}") return False def create_ui(self): # --- 布局配置 --- self.root.columnconfigure(1, weight=1) self.root.rowconfigure(1, weight=1) # === 左侧面板 (搜索与列表) === left_frame = tk.Frame(self.root, bg="#f0f0f0", width=250) left_frame.grid(row=0, column=0, rowspan=2, sticky="ns", padx=0, pady=0) left_frame.pack_propagate(False) # 固定宽度 # 标题 (去除 Emoji) tk.Label(left_frame, text="搜索公式", font=("Microsoft YaHei", 16, "bold"), bg="#f0f0f0").pack(pady=(20, 10)) # 搜索框 self.search_entry = tk.Entry( left_frame, font=("Arial", 12), justify='center') self.search_entry.pack(padx=15, pady=5, fill=tk.X) self.search_entry.bind("", lambda e: self.search_local()) # 按钮区域 btn_frame = tk.Frame(left_frame, bg="#f0f0f0") btn_frame.pack(padx=15, pady=10, fill=tk.X) tk.Button(btn_frame, text="本地查询", command=self.search_local, bg="#dddddd", activebackground="#cccccc").pack(side=tk.LEFT, expand=True, fill=tk.X, padx=(0, 5)) # 修改按钮文字：去除 Emoji tk.Button(btn_frame, text="联网搜索", command=self.start_web_search, bg="#4a90e2", fg="white", activebackground="#357abd").pack(side=tk.LEFT, expand=True, fill=tk.X, padx=(5, 0)) # 修改按钮文字：去除 Emoji tk.Button(left_frame, text="+ 添加新公式", command=self.add_formula_dialog, bg="#eeeeee").pack(padx=15, pady=5, fill=tk.X) # 列表区域 list_frame = tk.Frame(left_frame, bg="white") list_frame.pack(padx=15, pady=10, fill=tk.BOTH, expand=True) tk.Label(list_frame, text="结果列表:", bg="white", anchor="w").pack(fill=tk.X) self.listbox = tk.Listbox(list_frame, font=( "Arial", 11), selectmode=tk.SINGLE, borderwidth=0, highlightthickness=0) self.listbox.pack(side=tk.LEFT, fill=tk.BOTH, expand=True) scrollbar = ttk.Scrollbar( list_frame, orient=tk.VERTICAL, command=self.listbox.yview) scrollbar.pack(side=tk.RIGHT, fill=tk.Y) self.listbox.config(yscrollcommand=scrollbar.set) self.listbox.bind('<>', self.on_select) # 初始化列表 self.update_listbox(list(self.formulas.keys())) # === 右侧面板 (详情展示) === right_frame = tk.LabelFrame(self.root, text="详细内容", font=( "Microsoft YaHei", 12, "bold"), padx=10, pady=10) right_frame.grid(row=0, column=1, rowspan=2, padx=20, pady=20, sticky="nsew") right_frame.columnconfigure(0, weight=1) right_frame.rowconfigure(0, weight=1) # 标题标签 self.detail_title = tk.Label(right_frame, text="欢迎使用", font=( "Microsoft YaHei", 18, "bold"), anchor="w") self.detail_title.pack(fill=tk.X, pady=(0, 10)) # 文本显示区 (只读) self.detail_text = scrolledtext.ScrolledText(right_frame, font=( "Consolas", 14), wrap=tk.WORD, state=tk.DISABLED, bg="#fafafa") self.detail_text.pack(fill=tk.BOTH, expand=True) # 底部按钮 (去除 Emoji) bottom_frame = tk.Frame(right_frame, bg="white") bottom_frame.pack(fill=tk.X, pady=(10, 0)) tk.Button(bottom_frame, text="复制内容", command=self.copy_content).pack(side=tk.RIGHT) def update_listbox(self, items): self.listbox.delete(0, tk.END) for item in items: self.listbox.insert(tk.END, item) def search_local(self): keyword = self.search_entry.get().strip().lower() if not keyword: self.update_listbox(list(self.formulas.keys())) self.show_message("所有公式", "请在左侧列表中点击查看详情。") return matches = [name for name in self.formulas.keys() if keyword in name.lower()] self.update_listbox(matches) if matches: self.show_message(f"找到 {len(matches)} 条结果", "请点击列表查看详情。") else: # 修改提示文字：去除 Emoji self.show_message("未找到本地结果", "提示：试试点击上方的【联网搜索】按钮查找网络资源。") def on_select(self, event): selection = self.listbox.curselection() if selection: index = selection[0] name = self.listbox.get(index) content = self.formulas.get(name, "无内容") self.show_message(name, content) def show_message(self, title, content): self.detail_title.config(text=title) self.detail_text.config(state=tk.NORMAL) self.detail_text.delete("1.0", tk.END) self.detail_text.insert(tk.END, content) self.detail_text.config(state=tk.DISABLED) def start_web_search(self): keyword = self.search_entry.get().strip() if not keyword: messagebox.showwarning("提示", "请先输入要搜索的数学概念！") return self.detail_title.config(text=f"正在联网搜索：{keyword}...") self.detail_text.config(state=tk.NORMAL) self.detail_text.delete("1.0", tk.END) # 修改提示文字：去除 Emoji self.detail_text.insert( tk.END, "正在连接维基百科服务器，请稍候...\n(如果长时间无反应，请检查网络连接)") self.detail_text.config(state=tk.DISABLED) # 使用线程避免界面卡死 thread = threading.Thread(target=self.fetch_wiki, args=(keyword,)) thread.daemon = True thread.start() def fetch_wiki(self, keyword): try: # 编码关键词 url_keyword = urllib.parse.quote(keyword) url = f"https://zh.wikipedia.org/w/api.php?action=query&format=json&prop=extracts&exintro&explaintext&titles={url_keyword}" # 构建请求头 (模拟浏览器) headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) MathApp/1.0'} req = urllib.request.Request(url, headers=headers) with urllib.request.urlopen(req, timeout=10) as response: data = response.read().decode('utf-8') json_data = json.loads(data) pages = json_data['query']['pages'] page_id = next(iter(pages)) result = "" if page_id == "-1": # 修改提示文字：去除 Emoji result = f"未在维基百科找到关于 '{keyword}' 的条目。\n可能是关键词不准确，或者该概念没有独立的百科页面。\n\n建议尝试更换关键词，例如：\n- 将 '勾股' 改为 '勾股定理'\n- 将 '微积分' 改为 '微积分基本定理'" else: title = pages[page_id]['title'] extract = pages[page_id].get('extract', '无摘要内容。') # 修改格式符号：去除 Emoji result = f"来源：维基百科 ({title})\n\n{'='*30}\n\n{extract}\n\n{'='*30}\n(注：此为简要介绍)" # 更新UI self.root.after(0, lambda: self.show_message( f"联网结果：{keyword}", result)) except Exception as e: # 修改错误提示：去除 Emoji error_msg = f"网络请求失败:\n{str(e)}\n\n请检查：\n1. 网络连接是否正常\n2. 是否能访问维基百科" self.root.after(0, lambda: self.show_message("搜索错误", error_msg)) def copy_content(self): content = self.detail_text.get("1.0", tk.END).strip() if not content or "正在连接" in content or "欢迎使用" in self.detail_title.cget("text"): messagebox.showinfo("提示", "没有可复制的有效内容。") return self.root.clipboard_clear() self.root.clipboard_append(content) # 修改提示：去除 Emoji messagebox.showinfo("成功", "内容已复制到剪贴板！") def add_formula_dialog(self): dialog = tk.Toplevel(self.root) dialog.title("添加新公式") dialog.geometry("400x250") dialog.transient(self.root) dialog.grab_set() tk.Label(dialog, text="公式名称:", font=("Arial", 11)).pack(pady=(15, 5)) name_entry = tk.Entry(dialog, width=40, font=("Arial", 12)) name_entry.pack(pady=5) tk.Label(dialog, text="公式内容:", font=("Arial", 11)).pack(pady=(10, 5)) content_entry = tk.Entry(dialog, width=40, font=("Arial", 12)) content_entry.pack(pady=5) def save(): name = name_entry.get().strip() content = content_entry.get().strip() if name and content: self.formulas[name] = content if self.save_data(): self.update_listbox(list(self.formulas.keys())) self.show_message(name, content) messagebox.showinfo("成功", "公式已添加并保存！") dialog.destroy() else: messagebox.showerror("错误", "保存文件失败。") else: messagebox.showwarning("警告", "名称和内容不能为空！") tk.Button(dialog, text="保存", command=save, bg="#4CAF50", fg="white", font=("Arial", 11, "bold")).pack(pady=20) if __name__ == "__main__": root = tk.Tk() app = ZeroDepMathApp(root) root.mainloop()