嘿，刚看了你的代码和问题，你已经迈出了第一步——成功打开日历控件，但确实，这类Dynarch风格的日历需要先切换年月才能选到非当前月的日期。我来给你详细说说怎么实现，分两种方法，一种直接展开年月选择框（更高效），另一种通过箭头切换（适合批量操作）。

方法一：直接点击年月标题选择（推荐） #

这类日历通常支持点击顶部的年月标题，弹出年份和月份的选择列表，直接点选目标值就行，不用反复点箭头。下面是修改后的代码：

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

test_url = "https://www.fpi.nsdl.co.in/web/Reports/Archive.aspx"
driver = webdriver.Chrome(r"C:\Users\prash\Music\fii\chromedriver.exe")
driver.get(test_url)

# 目标日期参数（根据实际需求修改，注意月份文本要和日历显示一致，比如是"October"还是"Oct"）
target_year = "2023"
target_month = "October"
expected_to_date = '17'

# 显式等待日历按钮可点击，替代time.sleep更稳定
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.ID, "imgtxtDate"))).click()
time.sleep(0.5)

# 点击年份标题，展开年份选择面板
year_element = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CLASS_NAME, "DynarchCalendar-year")))
year_element.click()
# 选择目标年份
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, f"//td[@class='DynarchCalendar-yeartable']/a[text()='{target_year}']"))).click()
time.sleep(0.5)

# 点击月份标题，展开月份选择面板
month_element = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CLASS_NAME, "DynarchCalendar-month")))
month_element.click()
# 选择目标月份
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, f"//td[@class='DynarchCalendar-monthtable']/a[text()='{target_month}']"))).click()
time.sleep(0.5)

# 选择目标日期
date_element = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, f"//td[not(contains(@class,'DynarchCalendar-firstcol'))]/a[text()='{expected_to_date}']")))
date_element.click()

# 后续操作...
# driver.quit()

方法二：通过箭头按钮切换年月 #

如果遇到某些场景不能直接展开选择面板，就用箭头循环切换到目标年月：

from selenium import webdriver
import time

test_url = "https://www.fpi.nsdl.co.in/web/Reports/Archive.aspx"
driver = webdriver.Chrome(r"C:\Users\prash\Music\fii\chromedriver.exe")
driver.get(test_url)
time.sleep(1)

target_year = "2023"
target_month = "October"
expected_to_date = '17'

# 打开日历
driver.find_element_by_id("imgtxtDate").click()
time.sleep(1)

# 切换年份
current_year = driver.find_element_by_class_name("DynarchCalendar-year").text
while current_year != target_year:
    # 判断切换方向
    if int(target_year) < int(current_year):
        # 点击上一年箭头
        driver.find_element_by_xpath("//td[@class='DynarchCalendar-yearnav']/a[@title='Previous year']").click()
    else:
        # 点击下一年箭头
        driver.find_element_by_xpath("//td[@class='DynarchCalendar-yearnav']/a[@title='Next year']").click()
    time.sleep(0.5)
    current_year = driver.find_element_by_class_name("DynarchCalendar-year").text

# 切换月份
month_order = ["January", "February", "March", "April", "May", "June", 
               "July", "August", "September", "October", "November", "December"]
current_month = driver.find_element_by_class_name("DynarchCalendar-month").text
while current_month != target_month:
    if month_order.index(target_month) < month_order.index(current_month):
        # 点击上月箭头
        driver.find_element_by_xpath("//td[@class='DynarchCalendar-monthnav']/a[@title='Previous month']").click()
    else:
        # 点击下月箭头
        driver.find_element_by_xpath("//td[@class='DynarchCalendar-monthnav']/a[@title='Next month']").click()
    time.sleep(0.5)
    current_month = driver.find_element_by_class_name("DynarchCalendar-month").text

# 选择日期
from_day = driver.find_element_by_xpath("//td[not(contains(@class,'DynarchCalendar-firstcol'))]/a[text()='" + expected_to_date + "']")
from_day.click()
time.sleep(2)

注意事项 #

1. 确认文本格式：一定要用浏览器开发者工具（F12）查看日历里的月份/年份文本是全称（比如"October"）还是缩写（比如"Oct"），不然会找不到元素。
2. 优先用显式等待：我在方法一里加入了WebDriverWait，比time.sleep更可靠，能避免页面加载慢导致的元素找不到问题。
3. 元素定位验证：如果运行时找不到元素，检查XPath或Class Name是否和页面实际结构匹配，因为网站可能会更新控件样式。

内容的提问来源于stack exchange，提问作者Prashanth G