import requests
from lxml import etree
url = "https://www.bitpush.news/covid19/"
headers = {
    "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36"
}
response = requests.get(url, headers=headers)
html = response.text
#print(html)
parse = etree.HTMLParser(encoding='utf-8') 
doc = etree.HTML(html)
# states
zhou = doc.xpath('//div[@class="table_container"]//tbody/tr/td/span/text()')
print(zhou)
ren = doc.xpath('//div[@class="table_container"]//tbody/tr/td[2]/text()')
print(ren)
ren = [m.replace(",", "") for m in ren]
print(ren)
siwang = doc.xpath('//div[@class="table_container"]//tbody/tr/td[3]/text()')
print(ren)
siwang = [m.replace(",", "") for m in siwang]
message = list(zip(zhou, ren, siwang))
import csv
with open("content.csv", "w") as f:
    w = csv.writer(f)
    w.writerows(message)
import pandas as pd

#读取数据
df = pd.read_csv("content.csv", names=["zhou", "ren", "siwang"])
df.head()
print(df)
for i in range(101):
    df.drop([i],inplace=True)
print(df)
df.sort_values(by=['ren'],ascending=False,ignore_index=True)
print(df)
df=df.iloc[0:15]
print(df)
#作图
import matplotlib.pyplot as plt
# 设置中文显示
plt.rcParams['font.sans-serif'] = ['SimHei']
plt.rcParams['figure.figsize'] = (10, 5)  
m = df["zhou"].values
n = df['siwang'].values
plt.bar(m, n)
plt.xlabel("zhou")
plt.ylabel("siwang")
plt.show()