3、利用有道查单词

1. 导入库：在python3以后，sys不在支持setdefauletencoding，我理解就是自动识别字符格式了（也不知道对不对）

#-*- coding:utf-8 -*
from bs4 import BeautifulSoup
import requests
import importlib
import sys
importlib.reload(sys)
#
# sys.setdefaultencoding('utf8')：在python3以后，sys不支持setdefaultencoding

2. 定义函数，判断输入的是中文还是英文（中英互译和英中互译对应不同的url）

def check_chinese(check_str):
    for ch in check_str:
        print(ch)
        if u'\u4e00' <= ch <= u'\u9fff':
            return True
        return False

3. 输入要查的单词或中文，打开有道链接，定位输出结果

word=str(input('输入要翻译的单词：'))
if check_chinese(word):
    url=url='http://www.youdao.com/w/'+word
    web_data = requests.get(url).text
    soup = BeautifulSoup(web_data, 'lxml')
    meaning = soup.select('#phrsListTab > div.trans-container > ul')

else:
    url='http://www.youdao.com/w/eng/'+word
    web_data = requests.get(url).text
    soup = BeautifulSoup(web_data, 'lxml')
    meaning = soup.select('#phrsListTab > div.trans-container > ul > li')
print(url)


for i in meaning:
    print(i.get_text())