python3音乐下载器

# -*- coding: utf-8 -*-
"""
Created on Sun Apr 22 12:14:55 2018

@author: ken
"""
from selenium import webdriver
from time import sleep
from selenium.common.exceptions import NoSuchElementException  
from selenium.webdriver import ActionChains  
import urllib
import sys
mname = ''
#获取歌曲页面的URL
def get_url(url,key):
    driver = webdriver.Chrome()
#    url = input('输入连接地址')
    driver.get(url)
    driver.find_element_by_xpath('/html/body/div[1]/div[1]/div[1]/div[1]/input').send_keys(key)
    driver.find_element_by_xpath('/html/body/div[1]/div[1]/div[1]/div[1]/div/i').click()
    
    result_url = driver.current_url #获取当前网页的URL
    print(result_url)
    driver.close()
    driver.quit()
    return result_url
#展示该歌名的所有搜索结果
def show_results(url):
    driver = webdriver.Chrome()
    driver.get(url)
#    sleep(1)
    for i in range(1,1000): #假设有一千首歌
        try:
            print('%s'%i+driver.find_element_by_xpath('//*[@id="search_song"]/div[2]/ul[2]/li[%s]/div[1]/a'%i).get_attribute('title'))
        except NoSuchElementException as e:
            print('not found')
            break
    choice = input('请选择 刷新或退出 ')
    if choice == '退出':
        result = 'quit'
    else:
        global mname
        mname = driver.find_element_by_xpath('//*[@id="search_song"]/div[2]/ul[2]/li[%s]/div[1]/a'%choice).get_attribute('title')
        a = driver.find_element_by_xpath('//*[@id="search_song"]/div[2]/ul[2]/li[%s]/div[1]/a'%choice)
        actions =ActionChains(driver)
        actions.move_to_element(a)
        actions.click(a)
        actions.perform()
        sleep(1)
        handlers = driver.window_handles # 跳转到下一个窗口。
        driver.switch_to.window(handlers[1])
        result = driver.find_element_by_xpath('//*[@id="myAudio"]').get_attribute('src')
        driver.close()
        driver.quit()
    return result

def cbk(a,b,c):
    per = 100.0*a*b/c
    if per>100:
        per=100
    print('%.2f%%'%per,end=' ')
        
            
def choice(url):
    while True:            
        result = show_results(url)
        if result=='quit':
            sys.exit(0)
        else:
            local = 'music\%s.mp3'%mname
            print('download start')
            urllib.request.urlretrieve(result,local,cbk)
            print('\n\n')
            print('finish down %s.mp3'%mname+'\n\n')  
def main():
    while True:
        key = input('请输入关键字 ')
#        url = input('请输入链接地址')
        url = 'http://www.kugou.com'
        if not key:
            choice(url)
        elif key=='quit':
            break
        else:
            result_url = get_url(url,key)
            choice(result_url)
                      

if __name__ == '__main__':
    main()

我主要爬取的是酷狗音乐网站，其他音乐类似。获取xpath也很简单，直接点击右键copy。请注入其中有个坑，copy出来会发现是随机的一串数字，这时就要从上几层中选择copy.一层一层的找下来。selenium很强大，谁用谁知道。如果觉得不错，请不要吝啬关注一下我，我之后会不定时的推送更好的项目给大家分享。