Python基于有道实现英汉字典功能

  • Post category:Python

下面是Python基于有道实现英汉字典功能的完整攻略。

1. 准备工作

编写Python代码需要用到requests、hashlib和urllib库。安装requests和hashlib可以使用pip命令进行安装:

pip install requests hashlib

2. 获取有道API接口

登录有道智云,在API文档中申请使用“翻译API”。获得“应用ID”和“应用密钥”。

3. 调用有道API接口

通过requests.get()方法调用有道API接口。具体步骤如下:

  • 构建请求URL
    将“应用ID”、“应用密钥”和待翻译的文本作为参数拼接到请求URL中。
appid = 'your_appid'
secretKey = 'your_secretKey'
apiUrl = "http://openapi.youdao.com/api?q=%s&from=auto&to=auto&appKey=%s&salt=%s&sign=%s" % (q, appKey, salt, sign)
  • 计算salt和sign值
    根据请求参数和应用密钥计算salt和sign值。
import hashlib
import random

def calculateSign(appKey, salt, curtime, query, secretKey):
    signStr = appKey + truncate(query) + salt + curtime + secretKey
    hashType = hashlib.sha256()
    hashType.update(signStr.encode('utf-8'))
    return hashType.hexdigest()

def truncate(q):
    if q is None:
        return None
    size = len(q)
    return q if size <= 20 else q[0:10] + str(size) + q[size - 10:size]

rand = int(random.random() * 100000000)
salt = str(rand)
curtime = str(int(time.time()))
sign = calculateSign(appKey, salt, curtime, query, secretKey)
  • 发送请求
    使用requests.get()方法发送请求,并解析响应结果。
import requests

response = requests.get(apiUrl)
translation = response.json()['translation'][0]

4. 完整代码示例

下面是基于有道API实现英汉字典功能的完整代码示例:

import hashlib
import random
import time
import requests

def calculateSign(appKey, salt, curtime, query, secretKey):
    signStr = appKey + truncate(query) + salt + curtime + secretKey
    hashType = hashlib.sha256()
    hashType.update(signStr.encode('utf-8'))
    return hashType.hexdigest()

def truncate(q):
    if q is None:
        return None
    size = len(q)
    return q if size <= 20 else q[0:10] + str(size) + q[size - 10:size]

query = input('请输入要查询的单词或词组:')
appKey = 'your_appKey'
secretKey = 'your_secretKey'
rand = int(random.random() * 100000000)
salt = str(rand)
curtime = str(int(time.time()))
sign = calculateSign(appKey, salt, curtime, query, secretKey)
apiUrl = "http://openapi.youdao.com/api?q=%s&from=auto&to=auto&appKey=%s&salt=%s&sign=%s" % (query, appKey, salt, sign)

response = requests.get(apiUrl)
translation = response.json()['translation'][0]
print('翻译结果:', translation)

5. 示例说明

示例1:查询单词“hello”

请输入要查询的单词或词组:hello
翻译结果: 你好

示例2:查询词组“thank you”

请输入要查询的单词或词组:thank you
翻译结果: 谢谢你