Python BeautifulSoup [解决方法] TypeError: list indices must be integers or slices, not str

#引入库
from bs4 import BeautifulSoup
#读取页面
soup = BeautifulSoup(open('index.html'))
#获取标签
img_tag = div.select("img")
#获取标签属性(这里报错)
src = img_tag['src']
#输出
print(src)

find()
select_one()

<class 'bs4.element.Tag'>

find_all()
select()

#find_all()的返回值类型
<class 'bs4.element.ResultSet'>
#select()的返回值类型
<class 'list'>

#引入库
from bs4 import BeautifulSoup
#读取页面
soup = BeautifulSoup(open('index.html'))
#获取标签
img_tag = div.select("img")
#获取标签属性(这里有改动)
src = img_tag[0]['src']
#输出
print(src)

#引入库
from bs4 import BeautifulSoup
#读取页面
soup = BeautifulSoup(open('index.html'))
#获取标签
img_tag = div.select_one("img")
#获取标签属性(这里有改动)
src = img_tag['src']
#输出
print(src)