前言

今日分享 Python 制作英文学习词典，大家都可以尝试。

题目

制作英文学习词典。编写程序制作英文学习词典，词典有3个基本功能：添加、查询和退出。程序读取源文件路径下的txt格式词典文件，若没有就创建一个。词典文件存储方式为“英文单词 中文单词”，每行仅有一对中英释义。程序会根据用户的选择进入相应的功能模块，并显示相应的操作提示。当添加的单词已经存在时，显示“该单词已经添加到词典里”；当查询的单词不存在时，显示“字典库中未找到这个单词”。用户输入其他选项时候，提示“输入有误！”

代码

from tkinter import filedialog
import tkinter

def add_word():
    print(dict_path)

    add_word_window = tkinter.Tk()
    label1 = tkinter.Label(add_word_window, text='英语单词：')
    label1.grid(row=0, column=0)
    label2 = tkinter.Label(add_word_window, text='中文单词：')
    label2.grid(row=1, column=0)
    global eng
    global chi

    eng = tkinter.Entry(add_word_window)
    eng.grid(row=0, column=1, padx=10, pady=5)

    chi = tkinter.Entry(add_word_window)
    chi.grid(row=1, column=1, padx=10, pady=5)

    btn = tkinter.Button(add_word_window,text="添加单词", command=opera_add_word_to_file).grid(row=2, column=1, padx=10, pady=5)
    add_word_window.mainloop()

def opera_add_word_to_file():
    file_preprocessor()


    add_word_to_file_windows = tkinter.Tk()

    english = eng.get()

    if english not in words:
        chinese = chi.get()

        s = english + " " + chinese + '\n'
        #print(s)
        with open(dict_path, encoding="utf-8", mode="a") as file:
            file.write(s)

        label = tkinter.Label(add_word_to_file_windows, text='添加成功！')
        label.grid(row=0, column=0, padx=10, pady=5)
        button = tkinter.Button(add_word_to_file_windows, text='确定', command=add_word_to_file_windows.quit)
        button.grid(row=1, column=0, sticky=tkinter.E, padx=30, pady=5)
    else:
        label = tkinter.Label(add_word_to_file_windows, text='该单词已添加到词典库！')
        label.grid(row=0, column=0, padx=10, pady=5)
        button = tkinter.Button(add_word_to_file_windows, text='确定', command=add_word_to_file_windows.quit)
        button.grid(row=1, column=0, sticky=tkinter.E, padx=30, pady=5)

    add_word_to_file_windows.mainloop()

def select_file():
    global dict_path
    dict_path = ""
    dict_path = filedialog.askopenfilename()
    return dict_path


def word_search():
    word_search_ui = tkinter.Tk()
    label_eng = tkinter.Label(word_search_ui, text='英语单词：')
    label_eng.grid(row=0, column=0)
    global e2c
    e2c = tkinter.Entry(word_search_ui)
    e2c.grid(row=0, column=1, padx=10, pady=5)
    button = tkinter.Button(word_search_ui, text='确定', command=eng2chi_opera)
    button.grid(row=0, column=2, sticky=tkinter.E, padx=30, pady=5)
    word_search_ui.mainloop()


def eng2chi_opera():
    child_ui = tkinter.Tk()
    file_preprocessor()
    english = e2c.get()
    if english not in words:
        # print("字典库中未找到这个单词!")
        child_ui_tag = tkinter.Label(child_ui, text="字典库中未找到这个单词!").grid(row=0, column=0)
    else:
        # print("{}的中文释义是:{}".format(english, words[english]))
        child_ui_tag = tkinter.Label(child_ui, text=words[english]).grid(row=0, column=0)
    child_ui.mainloop()

def file_preprocessor():
    count = 0
    dict_read = open(dict_path, 'r', encoding="UTF-8")
    for line in dict_read.readlines():
        s = str(line).split()
        words[s[0]] = s[1]
        count += 1
    dict_read.close()

if __name__ == "__main__":
    global words
    global count
    words = {}
    count = 0

    main_window = tkinter.Tk()

    btn0 = tkinter.Button(main_window, text="选择文件", command=select_file).grid(row=0, column=0, sticky=tkinter.E, padx=30, pady=5)
    btn1 = tkinter.Button(main_window, text="添加", command=add_word).grid(row=0, column=1, sticky=tkinter.E, padx=30, pady=5)
    btn2 = tkinter.Button(main_window, text="查询", command=word_search).grid(row=0, column=2, sticky=tkinter.E, padx=30, pady=5)
    btn3 = tkinter.Button(main_window, text="退出", command=main_window.quit).grid(row=0, column=3, sticky=tkinter.E, padx=30, pady=5)

    main_window.mainloop()

运行后效果