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