使用R从dataframe中的urls抓取内容

install.packages("httr")
install.packages("rvest")

library(httr)

# 遍历urls列
for (url in df$urls) {
  # 发送GET请求
  response <- GET(url)
  
  # 提取响应内容
  content <- content(response, as = "text")
  
  # 进行进一步处理或保存内容
  # ...
}

library(rvest)

# 遍历urls列
for (url in df$urls) {
  # 发送GET请求
  response <- GET(url)
  
  # 提取响应内容
  content <- content(response, as = "text")
  
  # 解析HTML
  html <- read_html(content)
  
  # 使用CSS选择器提取所需的元素
  # ...
}