python selenium 小爬蟲

主要流程 讀取excel文件中的單詞——利用selenium 去百度翻譯中獲取單詞對應的音標——寫入cvs文件

selenium 安裝 環境配置略過

谷歌瀏覽器打開百度翻譯并等待baidu_translate_input加載完成

browser = webdriver.Chrome()

url = “https://fanyi.baidu.com/?aldtype=85#en/zh/”

browser.get(url)

WebDriverWait(browser, 1000).until(EC.presence_of_all_elements_located((By.ID, ‘baidu_translate_input’)))

打開excel文件，并獲取單詞sheet的 行數

excelfile = xlrd.open_workbook(r’F:\studytest\word.xlsx’)

sheet = excelfile.sheet_by_name(“單詞”)

cnt = sheet.nrows

csv文件寫入標題

with open(r’F:\studytest\result.csv’, ‘a’, encoding=‘utf-8’,newline=’’) as csvfile:

writer = csv.writer(csvfile)

writer.writerow((“單詞”, “音標”))

定位baidu_translate_input并輸入單詞

browser.find_element_by_id(‘baidu_translate_input’).send_keys(mystr)

點擊翻譯

browser.find_element_by_id(‘translate-button’).click()

獲取音標

phonetic = browser.find_element_by_class_name(‘dictionary-spell’).text # 音標

全部代碼

#!/usr/bin/env python

# -*- coding: utf-8 -*-

# @version : Python 3.7.3

# @Time : 2019/7/24 20:13

import xlrd

import time

import csv

from selenium import webdriver

from selenium.webdriver.support.ui import WebDriverWait

from selenium.webdriver.support import expected_conditions as EC

from selenium.webdriver.common.by import By

browser = webdriver.Chrome()

url = "https://fanyi.baidu.com/?aldtype=85#en/zh/"

browser.get(url)

WebDriverWait(browser, 1000).until(EC.presence_of_all_elements_located((By.ID, 'baidu_translate_input')))

excelfile = xlrd.open_workbook(r'F:\studytest\word.xlsx')

sheet = excelfile.sheet_by_name("單詞")

cnt = sheet.nrows

with open(r'F:\studytest\result.csv', 'a', encoding='utf-8',newline='') as csvfile:

writer = csv.writer(csvfile)

writer.writerow(("單詞", "音標"))

for i in range(cnt):

mystr = sheet.cell(i, 0).value

browser.find_element_by_id('baidu_translate_input').send_keys(mystr)

browser.find_element_by_id('translate-button').click()

WebDriverWait(browser, 1000).until(EC.presence_of_all_elements_located((By.CLASS_NAME, 'trans-left')))

try:

words = browser.find_element_by_class_name('strong').text # 單詞

phonetic = browser.find_element_by_class_name('dictionary-spell').text # 音標

print("%s %s" % (words, phonetic))

data = (words, phonetic)

with open(r'F:\studytest\result.csv', 'a', encoding='utf-8', newline='') as csvfile:

writer = csv.writer(csvfile)

writer.writerow(data)

except:

pass

time.sleep(1)

browser.find_element_by_id('baidu_translate_input').clear()

browser.close()

browser.quit()

print("完成，請到相應文件夾查看！")1

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