Python 翻译词典小程序功能说明

"""
小小词典 v1.0 
copyright (c) 2025  yang xiaofan 
    this program is free software: you can redistribute it and/or modify
    it under the terms of the gnu general public license as published by
    the free software foundation, either version 3 of the license, or
    (at your option) any later version.
    this program is distributed in the hope that it will be useful,
    but without any warranty; without even the implied warranty of
    merchantability or fitness for a particular purpose.  see the
    gnu general public license for more details.
    you should have received a copy of the gnu general public license
    along with this program.  if not, see <https://www.gnu.org/licenses/>.
"""
import sqlite3
import requests
from bs4 import beautifulsoup
def init_db():
    conn = sqlite3.connect('translations.db')
    c = conn.cursor()
    c.execute('''create table if not exists translations
                 (id integer primary key autoincrement,
                  english text unique not null,
                  chinese text not null,
                  pos text,
                  create_time timestamp default current_timestamp)''')
    # 新增生词本表
    c.execute('''create table if not exists vocabulary_book
                 (id integer primary key autoincrement,
                  word_id integer unique,
                  add_time timestamp default current_timestamp,
                  foreign key(word_id) references translations(id))''')
    conn.commit()
    conn.close()
def add_to_vocabulary(word):
    conn = sqlite3.connect('translations.db')
    c = conn.cursor()
    # 获取单词id
    c.execute("select id from translations where english=?", (word,))
    word_id = c.fetchone()
    if word_id:
        try:
            c.execute("insert or ignore into vocabulary_book (word_id) values (?)", 
                     (word_id[0],))
            conn.commit()
            print(f"【{word}】已成功加入生词本")
        except sqlite3.integrityerror:
            print(f"【{word}】已在生词本中")
    else:
        print("请先查询该单词确保其存在于数据库")
    conn.close()
def show_vocabulary():
    conn = sqlite3.connect('translations.db')
    c = conn.cursor()
    c.execute('''select t.english, t.chinese, t.pos 
                 from translations t join vocabulary_book v on t.id = v.word_id
                 order by v.add_time desc''')
    print("\n=== 我的生词本 ===")
    for idx, (en, cn, pos) in enumerate(c.fetchall(), 1):
        print(f"{idx}. {en} ({pos}): {cn}")
    conn.close()
def save_to_db(english, chinese, pos):
    conn = sqlite3.connect('translations.db')
    c = conn.cursor()
    c.execute("insert or ignore into translations (english, chinese, pos) values (?, ?, ?)",
              (english, chinese, pos))
    conn.commit()
    conn.close()
def check_in_db(word):
    conn = sqlite3.connect('translations.db')
    c = conn.cursor()
    c.execute("select english, chinese, pos from translations where english=?", (word,))
    result = c.fetchone()
    conn.close()
    return result if result else none
def translate_with_pos(word):
    # 先查本地数据库
    db_result = check_in_db(word)
    if db_result:
        print(f"该单词已在本地数据库查找到，翻译解释如下：")
        print(f"{db_result[0]} ({db_result[2]}): {db_result[1]}")
        choice = input("继续网络查询请输入w，直接退出请按回车：").strip().lower()
        if choice != 'w':
            return none
    url = f"https://dict.youdao.com/w/eng/{word}/"
    headers = {'user-agent': 'mozilla/5.0'}
    try:
        response = requests.get(url, headers=headers)
        soup = beautifulsoup(response.text, 'html.parser')
        # 获取中文释义
        trans = soup.find('div', class_='trans-container').get_text(strip=true)
        # 获取词性标注
        pos_tag = soup.find('span', class_='pos')
        pos = pos_tag.get_text() if pos_tag else "无词性标注"
        save_to_db(word, trans, pos)
        return f"{word} ({pos}): {trans}"
    except exception as e:
        return f"翻译失败: {str(e)}"
if __name__ == "__main__":
    init_db()
    print("命令： \q 退出；\w 加入生词本 \s 查看生词本 \h 查看帮助")
    while true:
        query = input("请输入英文单词或命令(输入\q退出): ").strip()
        if query.lower() == '\q':
            break
        if query.lower() == '\w':
            word = input("输入要收藏的单词: ").strip()
            add_to_vocabulary(word)
            continue
        if query.lower() == '\s':
            show_vocabulary()
            continue
        if query.lower() == '\h':
            print("命令： \q 退出；\w 加入生词本 \s 查看生词本 \h 查看帮助")
            continue
        trans = translate_with_pos(query)
        if trans:
            print(f"-    {trans}")

(.venv) d:\sanxia-src>translate.py
命令： \q 退出；\w 加入生词本 \s 查看生词本 \h 查看帮助
请输入英文单词或命令(输入\q退出): \s
=== 我的生词本 ===
1. water (n.): n. 水，雨水；水域，（江、河、湖、海等）大片的水；（某个国家的）领海，海域（waters）；不明朗（或未知的、困难、危险等）局面（waters）；羊水（waters）；（湖、海的）水面；水位；乘船，走水路v. 给……浇水，灌溉；给…...水喝，饮（动物）；（风等使眼睛）流泪；流口水；（江河）流经并给（某地区）供水；加水冲淡，稀释【名】 （water）（英）沃特（人名）[
                    复数
        waters
                     第三人称单数
        waters
                     现在分词
        watering
                     过去式
        watered
                     过去分词
        watered
                   ]
请输入英文单词或命令(输入\q退出): yes
-    yes (n.): adv. 是，是的n. 是（表示肯定）[
                    复数
        yesses或yeses
                     第三人称单数
        yesses或yeses
                     现在分词
        yessing
                     过去式
        yessed
                     过去分词
        yessed
                   ]
请输入英文单词或命令(输入\q退出): level
-    level (n.): n. 数量，程度；标准，水平；层次，级别；看待（或应对、理解）事物的方式；水平高度，相对高度；楼层；平地；水平仪adj. 平坦的，水平的；相同价值的，相同地位的；比分相同的；平静的，冷静的v. 使平整；推倒，夷平；（使）比分相同；（尤指用枪）瞄准；针对……（进行批评等）；稳定下来，达到平衡（level off）；坦诚相见；作水准测量【名】 （level）（法）勒韦尔（人名）[
                    复数
        levels
                     第三人称单数
        levels
                     现在分词
        levelling或leveling
                     过去式
        levelled或leveled
                     过去分词
        levelled或leveled
                   ]
请输入英文单词或命令(输入\q退出): jackfruit
-    jackfruit (n.): n. 木菠萝；菠萝蜜