人人钢琴(everyonepiano.com)钢琴谱下载脚本

下面是python代码。需要BeautifulSoup库。

import os
import multiprocessing
import requests
from bs4 import BeautifulSoup
stave_url="http://everyonepiano.com/Stave-{0}.html"
def main():
    text=input("Please input the ID of the music, or the url of the music's home page:\n")
    try:
        id=int(text)
    except:
        id=int(text.split('-')[1])

    r=requests.get(stave_url.format(id))
    soup=BeautifulSoup(r.text,"lxml")

    name=soup.find("div",id="musicTitle").text # Name of the music
    print("Downloading stave files of: " + name+"...\n")
    if not os.path.exists(name):
        os.mkdir(name)
    pool = multiprocessing.Pool(10) # Multi processing pool

    num=1
    for li in soup.find("ul",id="ul1").find_all("li"):
        url = "http://everyonepiano.com"  + li.img.attrs["src"]
        pool.apply_async(download, (url, name+"/{0}.png".format(num)))
        num+=1

    pool.close() # Stop accepting new requests
    pool.join()  # Wait until all tasks are finished

    print("Task finished! {0} file(s) saved.\n".format(num-1))

def download(url, path):
    img=requests.get(url)
    with open(path,"wb") as file:
        file.write(img.content)
    print("Downloaded image at: " + url)

if __name__ == "__main__":
    main()
    os.system("pause")

输入要下载的音乐的id或者网址链接，按回车开始下载。如果要下载简谱的话，把代码里的"Stave"改成"Number"就可以了。