将Ref与类组件一起使用时，可以像这样import csv
import requests
from bs4 import BeautifulSoup
realtor_data = []
for page in range(1, 6):
print(f"Scraping page {page}...")
url = f"https://www.realtor.com/realestateagents/phoenix_az/pg-{page}"
soup = BeautifulSoup(requests.get(url).text, "html.parser")
for agent_card in soup.find_all("div", {"class": "agent-list-card clearfix"}):
name = agent_card.find("div", {"class": "agent-name text-bold"}).find("a")
number = agent_card.find("div", {"itemprop": "telephone"})
realtor_data.append(
[
name.getText().strip(),
number.getText().strip() if number is not None else "N/A"
],
)
with open("data.csv", "w") as output:
w = csv.writer(output)
w.writerow(["NAME:", "PHONE NUMBER:", "CITY:"])
w.writerows(realtor_data)
一样将ref传递给子组件，然后可以通过<InputModal ref={ ref => this.modalRef=ref} />来访问其方法，功能组件如何做到这一点？我正在通过redux转发Ref，并像使用类组件一样导出组件。
this.modalRef.methodName()我目前在expo和redux上使用react-native。