Selenium/Python中输入框无法清空问题求助

你当前用键盘快捷键全选删除的方式失效，大概率是元素交互逻辑的问题，试试下面几种更可靠的解决方案：

方法1：使用Selenium内置的clear()方法 #

这是官方针对表单输入元素设计的清空方式，最直接稳定：

from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait  
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome(service=Service(ChromeDriverManager().install()))
driver.implicitly_wait(0.5)
driver.maximize_window()
driver.get("https://www.futbin.com/fut-card-creator/22")

# 处理评分输入框
rating = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "rating_change")))
rating.click()
rating.clear()  # 直接调用clear()清空
rating.send_keys("90")

# 处理位置输入框
position = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "position_change")))
position.click()
position.clear()
position.send_keys("ST")

方法2：兼容多系统的全选删除 #

如果clear()无效（比如元素是非标准输入框），试试适配Windows和Mac的全选快捷键：

import sys
from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait  
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome(service=Service(ChromeDriverManager().install()))
driver.implicitly_wait(0.5)
driver.maximize_window()
driver.get("https://www.futbin.com/fut-card-creator/22")

# 处理评分输入框
rating = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "rating_change")))
rating.click()
# 根据系统选择对应全选快捷键
if sys.platform == 'darwin':
    rating.send_keys(Keys.COMMAND + "a")
else:
    rating.send_keys(Keys.CONTROL + "a")
rating.send_keys(Keys.DELETE)  # 用DELETE比BACK_SPACE更稳定
rating.send_keys("90")

# 处理位置输入框
position = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "position_change")))
position.click()
if sys.platform == 'darwin':
    position.send_keys(Keys.COMMAND + "a")
else:
    position.send_keys(Keys.CONTROL + "a")
position.send_keys(Keys.DELETE)
position.send_keys("ST")

方法3：JavaScript强制清空 #

如果前两种都不生效，直接通过JS修改元素内容（适合contenteditable类型的富文本元素）：

from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait  
from selenium.webdriver.support import expected_conditions as EC

driver = webdriver.Chrome(service=Service(ChromeDriverManager().install()))
driver.implicitly_wait(0.5)
driver.maximize_window()
driver.get("https://www.futbin.com/fut-card-creator/22")

# 处理评分输入框
rating = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "rating_change")))
# 用JS清空元素内容
driver.execute_script("arguments[0].textContent = '';", rating)
rating.send_keys("90")

# 处理位置输入框
position = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.ID, "position_change")))
driver.execute_script("arguments[0].textContent = '';", position)
position.send_keys("ST")

优先级建议：优先尝试方法1，这是官方推荐的标准方案；如果元素是富文本类型，方法3的成功率更高。

内容的提问来源于stack exchange，提问作者Devin Smith