防止自己遗忘，故作此为记录。

爬取网页基本元件并修改后爬取。

包含元件：

elements: dict[str, str] = {
    "username": None,
    "password": None,
    "email": None,
    "website": None,
    "date": None,
    "time": None,
    "number": None,
    "range": None,
    "color": None,
    "search": None
}

---

步骤：

（1）爬取网页原有信息：

很简单，因为都是<input>元件，只不过type不同，但大差不差。

WebDriverWait(driver, 10).until(expected_conditions.visibility_of_element_located((By.ID, "username")))
for index, element in enumerate(elements):
    elements[element] = driver.find_element(By.ID, element).get_attribute("value")

with open("RPA_read.txt", 'w', encoding="utf-8") as file:
    file.write(pformat(elements))

---

 （2）修改元件内容：

也简单，input元件直接send_keys即可。

write_elements: dict[str, str] = {
    "username": "DaisyMo",
    "password": "MyLoveDaisyMo",
    "email": "DaisyMo@email.love",
    "website": "DaisyWithMe.love",
    "date": "8-10",
    "time": str(time()),
    "number": "6",
    "range": "66",
    "color": "#FF8C2F",
    "search": "墨小菊"
}

for index, (element, value) in enumerate(write_elements.items()):
    #更正：需要删除之前的
    driver.find_element(By.ID, element).clear()
    driver.find_element(By.ID, element).send_keys(value)

---

（3）爬取修改的内容：

大差不差和上面，就是最好判断一下现在的内容和之前的是否相同。

(
    WebDriverWait(driver, 10)
    .until(lambda driver: driver.find_element(By.ID, "username")
    .get_attribute("username") != elements["username"])
)

for index, element in enumerate(elements):
    elements[element] = driver.find_element(By.ID, element).get_attribute("value")

with open("RPA_write.txt", 'w', encoding="utf-8") as file:
    file.write(pformat(elements))

#结果就是
{'color': '#000000',
 'date': '2021-06-20',
 'email': 'spiderbuf@126.com',
 'number': '',
 'password': 'spiderbuf',
 'range': '50',
 'search': '',
 'time': '00:01:01',
 'username': 'Spiderbuf',
 'website': 'http://www.spiderbuf.cn'}

#之后
{'color': '#ff8c2f',
 'date': '',
 'email': 'DaisyMo@email.love',
 'number': '6',
 'password': 'MyLoveDaisyMo',
 'range': '50',
 'search': '墨小菊',
 'time': '17:59',
 'username': 'DaisyMo',
 'website': 'DaisyWithMe.love'}

---

源代码：

# -*- coding: utf-8 -*-
# -*- file: RPA.py  -*-

from time import time
from pprint import pformat
from selenium.webdriver import Chrome
from selenium.webdriver.chrome.service import Service as ChromeService
from selenium.webdriver.chrome.options import Options as ChromeOptions
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions
from selenium.webdriver.support.ui import WebDriverWait


target_url: str = r"https://www.spiderbuf.cn/playground/n06"

service: object = ChromeService(r"RPA\chromedriver-win64\chromedriver.exe")
options: object = ChromeOptions()
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_argument("--disable-blink-features=AutomationControlled")

driver: object = Chrome(service=service, options=options)

driver.get(target_url)

elements: dict[str, str] = {
    "username": None,
    "password": None,
    "email": None,
    "website": None,
    "date": None,
    "time": None,
    "number": None,
    "range": None,
    "color": None,
    "search": None
}

write_elements: dict[str, str] = {
    "username": "DaisyMo",
    "password": "MyLoveDaisyMo",
    "email": "DaisyMo@email.love",
    "website": "DaisyWithMe.love",
    "date": "8-10",
    "time": str(time()),
    "number": "6",
    "range": "66",
    "color": "#FF8C2F",
    "search": "墨小菊"
}

WebDriverWait(driver, 10).until(expected_conditions.visibility_of_element_located((By.ID, "username")))
for index, element in enumerate(elements):
    elements[element] = driver.find_element(By.ID, element).get_attribute("value")

with open("RPA_read.txt", 'w', encoding="utf-8") as file:
    file.write(pformat(elements))

for index, (element, value) in enumerate(write_elements.items()):
    driver.find_element(By.ID, element).send_keys(value)

WebDriverWait(driver, 10).until(lambda driver: driver.find_element(By.ID, "username").get_attribute("username") != elements["username"])

for index, element in enumerate(elements):
    elements[element] = driver.find_element(By.ID, element).get_attribute("value")

with open("RPA_write.txt", 'w', encoding="utf-8") as file:
    file.write(pformat(elements))

driver.close()

---

还有特殊的元件需要学习。