python bs4 + requests4 简单爬虫

参考链接：

bs4和requests的使用：https://www.cnblogs.com/baojinjin/p/6819389.html

安装pip：https://blog.csdn.net/zwr_20121141/article/details/80293806

# python 3.x 开始自带了pip，如果没有请自信百度安装。
# pip install beautifulsoup4 requests
from bs4 import BeautifulSoup
import requests

res = requests.get('https://etherscan.io/token/tokenholderchart/0x86fa049857e0209aa7d9e616f7eb3b3b78ecfdb0?range=10')
res.encoding='gbk'
soup = BeautifulSoup(res.text,'html.parser')
table = soup.select('#ContentPlaceHolder1_resultrows table tr')
myarr = []
for tr in table:
    td = tr.select('td')
    if len(td) > 0:
        Rank = td[0].text;
        Address = td[1].text;
        Quantity = td[2].text;
        Percentage = td[3].text;
        myarr.append({"Rank": Rank, "Address": Address, "Quantity": Quantity, "Percentage": Percentage})
print(myarr)