Selenium自动化：高效定位与填充网页输入框实践

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time

# 初始化WebDriver
driver = webdriver.Chrome()
website_url = "https://www.instagram.com/accounts/login/?source=auth_switcher"
driver.get(website_url)

# 创建WebDriverWait实例，最长等待10秒
wait = WebDriverWait(driver, 10)

try:
    # 等待直到名为"username"的输入框元素出现在DOM中
    username_field = wait.until(EC.presence_of_element_located((By.NAME, "username")))

    # 元素出现后，即可进行操作
    username_field.send_keys("your_instagram_username")
    print("用户名输入成功。")

    # 如果密码框也需要等待，可以继续添加
    password_field = wait.until(EC.presence_of_element_located((By.NAME, "password")))
    password_field.send_keys("your_instagram_password")
    print("密码输入成功。")

    time.sleep(5) # 观察效果
except Exception as e:
    print(f"操作失败：{e}")
finally:
    driver.quit()

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import time
from datetime import datetime

def login_at_specific_time(username, password, target_time_str):
    """
    在指定时间登录Instagram。
    :param username: Instagram用户名
    :param password: Instagram密码
    :param target_time_str: 目标登录时间，格式如 "21:45"
    """
    driver_path = "path_to_chromedriver" # 请替换为你的ChromeDriver路径

    options = webdriver.ChromeOptions()
    # options.binary_location = driver_path # 如果你的Chrome浏览器不是默认安装路径，可能需要此项
    driver = webdriver.Chrome(options=options)

    website_url = "https://www.instagram.com/accounts/login/?source=auth_switcher" 
    driver.get(website_url)

    # 等待直到达到目标时间
    print(f"等待到达目标时间: {target_time_str}...")
    while datetime.now().strftime("%H:%M") < target_time_str:
        time.sleep(1) # 每秒检查一次，避免CPU空转

    print(f"已达到目标时间 {target_time_str}，开始登录。")

    try:
        wait = WebDriverWait(driver, 15) # 设置更长的等待时间以应对网络延迟

        # 等待用户名输入框出现并可见
        username_field = wait.until(EC.visibility_of_element_located((By.NAME, "username")))
        username_field.send_keys(username)
        print("用户名已输入。")

        # 等待密码输入框出现并可见
        password_field = wait.until(EC.visibility_of_element_located((By.NAME, "password")))
        password_field.send_keys(password)
        print("密码已输入。")

        # 进一步操作：点击登录按钮
        # 假设登录按钮的name是"submit"或class是"L3NKy"等，需要根据实际页面检查
        # login_button = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "button[type='submit']")))
        # login_button.click()
        # print("登录按钮已点击。")

        time.sleep(10) # 保持页面打开一段时间，以便观察结果

    except Exception as e:
        print(f"登录过程中发生错误：{e}")
    finally:
        driver.quit()
        print("浏览器已关闭。")

# 示例调用
# 请将"path_to_chromedriver"替换为你的实际路径
# 将"your_username"和"your_password"替换为你的Instagram凭据
# 将"21:45"替换为你希望执行登录的实际时间
# login_at_specific_time(username="your_username", password="your_password", target_time_str="21:45")