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import tkinter as tk
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from tkinter import messagebox
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import random
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import pymysql
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class LoginPage(tk.Toplevel):
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def __init__(self, master=None):
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super().__init__(master)
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self.title("登录")
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self.geometry("200x200")
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self.username_var = tk.StringVar()
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self.password_var = tk.StringVar()
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tk.Label(self, text="用户名:").pack()
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tk.Entry(self, textvariable=self.username_var).pack()
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tk.Label(self, text="密码:").pack()
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tk.Entry(self, show="*", textvariable=self.password_var).pack()
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tk.Button(self, text="登录", command=self.login).pack(pady=10)
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def login(self):
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username = self.username_var.get()
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password = self.password_var.get()
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if username == "a" and password == "123456":
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self.master.destroy() # 关闭主窗口（如果有），这里假设直接关闭自身也行，取决于实际结构
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MainApp().mainloop() # 登录成功后实例化MainApp并启动其主循环
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else:
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messagebox.showerror("错误", "用户名或密码错误！") # 登录失败，保持登录界面打开供用户重试
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class MainApp(tk.Tk):
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def __init__(self):
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super().__init__()
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self.title("单词学习")
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self.geometry("200x200")
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# 创建三个按钮
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tk.Button(self, text="学习新单词", command=self.open_window1).pack(fill=tk.X, padx=10, pady=5)
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tk.Button(self, text="复习单词", command=self.open_window2).pack(fill=tk.X, padx=10, pady=5)
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tk.Button(self, text="易错单词查看", command=self.open_window3).pack(fill=tk.X, padx=10, pady=5)
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def open_window1(self):
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Window1(self)
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def open_window2(self):
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Window2(self)
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def open_window3(self):
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Window3(self)
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class Window1(tk.Toplevel):
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def __init__(self, master):
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super().__init__(master)
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self.title("单词学习界面")
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# 初始化MySQL数据库连接
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self.conn = pymysql.connect(
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host="localhost", # MySQL服务器地址
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user="root", # 数据库用户名
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password="21412030117", # 数据库密码
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database="word", # 数据库名
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charset='utf8mb4', # 字符编码，根据需要调整
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cursorclass=pymysql.cursors.DictCursor # 使用字典游标，方便通过列名访问数据
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)
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self.cursor = self.conn.cursor()
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self.word_frame = tk.Frame(self)
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self.word_frame.pack(padx=10, pady=10)
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self.next_button = tk.Button(self, text="下一个单词", command=self.show_next_word)
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self.next_button.pack(side=tk.RIGHT, padx=5, pady=5)
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self.prev_button = tk.Button(self, text="上一个单词") # 实现逻辑待补充
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self.prev_button.pack(side=tk.LEFT, padx=5, pady=5)
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self.show_next_word() # 初始显示一个单词
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def show_next_word(self):
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# 查询并获取一个未学习的单词
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query = ("SELECT word, meaning FROM words WHERE learned = 0 ORDER BY RAND() LIMIT 1")
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self.cursor.execute(query)
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word_row = self.cursor.fetchone()
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if word_row:
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word, meaning = word_row['word'], word_row['meaning'] # 使用字典访问列
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self.display_word(word, meaning)
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# 标记该单词为已学习
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self.mark_word_as_learned(word)
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else:
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messagebox.showinfo("提示", "所有单词都已学习过！")
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def display_word(self, word, meaning):
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"""显示单词及其意义"""
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for widget in self.word_frame.winfo_children():
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widget.destroy()
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tk.Label(self.word_frame, text=f"单词: {word}").pack(anchor=tk.W)
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tk.Label(self.word_frame, text=f"意义: {meaning}").pack(anchor=tk.W)
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def mark_word_as_learned(self, word):
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"""将单词标记为已学习"""
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update_query = ("UPDATE words SET learned = 1 WHERE word = %s")
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self.cursor.execute(update_query, (word,))
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self.conn.commit()
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class Window2(tk.Toplevel):
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def __init__(self, master):
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super().__init__(master)
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self.title("单词拼写测试")
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self.conn = pymysql.connect(
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host="localhost",
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user="root",
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password="21412030117",
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database="word",
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charset='utf8mb4',
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cursorclass=pymysql.cursors.DictCursor
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)
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self.cursor = self.conn.cursor()
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self.setup_ui()
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self.protocol("WM_DELETE_WINDOW", self.on_closing)
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self.word_error_count = {} # 新增：存储单词错误次数的字典
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def setup_ui(self):
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self.word_label = tk.Label(self, text="", font=("Arial", 16))
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self.word_label.pack(pady=10)
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self.entry_var = tk.StringVar()
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self.user_entry = tk.Entry(self, textvariable=self.entry_var, font=("Arial", 14))
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self.user_entry.pack(ipady=5, pady=10)
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self.result_label = tk.Label(self, text="", fg="black", font=("Arial", 12))
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self.result_label.pack(pady=5)
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self.next_button = tk.Button(self, text="下一个单词", state=tk.DISABLED, command=self.show_next_word)
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self.next_button.pack(pady=10)
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self.show_next_word() # 初始化显示一个单词
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def show_next_word(self):
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self.next_button.config(state=tk.DISABLED) # 禁用按钮防止重复点击
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self.cursor.execute("SELECT `word`, `meaning` FROM `words` WHERE `learned` = 1 ORDER BY RAND() LIMIT 1")
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word_row = self.cursor.fetchone()
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if word_row:
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self.current_word = word_row['word']
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self.current_meaning = word_row['meaning']
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self.word_label.config(text=f"含义：{self.current_meaning}")
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self.entry_var.set("") # 清空输入框
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self.result_label.config(text="")
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self.user_entry.bind("<Return>", lambda event: self.check_spelling()) # 绑定回车键检查拼写
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else:
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messagebox.showinfo("提示", "没有更多已学习的单词可供测试！")
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self.destroy()
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def check_spelling(self):
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user_input = self.entry_var.get().strip().lower()
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if user_input == self.current_word.lower():
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self.result_label.config(text="正确!", fg="green")
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self.next_button.config(state=tk.NORMAL) # 正确后启用按钮
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self.entry_var.set("") # 清空输入框
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self.result_label.config(text="")
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self.word_error_count[self.current_word] = 0 # 重置错误计数
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else:
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self.result_label.config(text=f"错误！", fg="red")
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self.user_entry.delete(0, tk.END) # 清空输入框并显示正确答案
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self.user_entry.insert(0, self.current_word) # 在输入框中显示正确答案
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self.user_entry.config(fg="red") # 将输入框文字颜色设为红色
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self.user_entry.unbind("<Return>") # 避免在显示答案时响应回车键
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self.user_entry.bind("<Button-1>", lambda event: self.clear_and_rebind(event)) # 绑定左键点击事件以清除并重新绑定
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# 更新错误计数
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if self.current_word in self.word_error_count:
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self.word_error_count[self.current_word] += 1
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else:
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self.word_error_count[self.current_word] = 1
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# 达到错误次数限制时更新数据库
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if self.word_error_count[self.current_word] > 3:
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self.update_easily_mistaken_in_db()
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def update_easily_mistaken_in_db(self):
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"""更新数据库中单词的easily_mistaken字段为1"""
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try:
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update_query = (
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"UPDATE `words` SET `easily_mistaken` = 1 "
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"WHERE `word` = %s AND `easily_mistaken` != 1"
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)
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self.cursor.execute(update_query, (self.current_word,))
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self.conn.commit()
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print(f"单词'{self.current_word}'标记为易错单词。")
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except Exception as e:
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print(f"更新数据库时出错：{e}")
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def clear_and_rebind(self, event):
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self.user_entry.delete(0, tk.END) # 清空输入框
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self.user_entry.config(fg="black") # 重置输入框文字颜色为黑色
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self.user_entry.bind("<Return>", lambda event: self.check_spelling()) # 重新绑定回车键事件
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def on_closing(self):
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self.conn.close()
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self.destroy()
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class Window3(tk.Toplevel):
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def __init__(self, master):
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super().__init__(master)
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self.title("易错单词复习")
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self.conn = pymysql.connect(
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host="localhost",
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user="root",
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password="21412030117",
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database="word",
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charset='utf8mb4',
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cursorclass=pymysql.cursors.DictCursor
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)
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self.cursor = self.conn.cursor()
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self.setup_ui()
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self.show_next_mistaken_word() # 初始化显示一个易错单词
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def setup_ui(self):
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self.word_label = tk.Label(self, text="", font=("Arial", 16))
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self.word_label.pack(pady=10)
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self.next_button = tk.Button(self, text="下一个单词", command=self.show_next_mistaken_word)
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self.next_button.pack(pady=10)
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def show_next_mistaken_word(self):
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self.cursor.execute("SELECT `word`, `meaning` FROM `words` WHERE `easily_mistaken` = 1 ORDER BY RAND() LIMIT 1")
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word_row = self.cursor.fetchone()
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if word_row:
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self.current_word = word_row['word']
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self.current_meaning = word_row['meaning']
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self.word_label.config(text=f"含义：{self.current_meaning}")
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else:
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messagebox.showinfo("提示", "没有更多易错单词可供复习！")
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self.destroy()
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def on_closing(self):
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self.conn.close()
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self.destroy()
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def protocol(self, event):
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self.on_closing()
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# 在创建Window3实例的地方确保调用protocol方法绑定关闭事件
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#window3 = Window3(root)
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#window3.protocol("WM_DELETE_WINDOW", window3.on_closing)
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def start_application():
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root = tk.Tk()
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root.withdraw() # 隐藏根窗口，因为我们直接使用Toplevel作为登录界面
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LoginPage(master=root) # 将主窗口作为master传给LoginPage，便于后续操作
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root.mainloop() # 主循环在此启动，控制整个应用的生命周期
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if __name__ == "__main__":
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start_application() |
