已经给官方提建议了，目前还没在最新版看到相关功能。
解决办法：python 脚本(通过pywinauto 控制点击下一张和下载按钮，然后通过判断文件夹里的文件md5值重复阈值来间接达到判断没有下一张的目的)
操作步骤，登录电脑版微信，打开相关聊天记录，打开图片查看功能，界面是这个样子的才能用这个脚本（忽略第二个按钮置灰，刚跑完一次）。
此时是可以点击左上角向右箭头（从左数第二个按钮：鼠标放上去提示文字为下一张）和另存为按钮（顶部最右侧的按钮）的，先点即下载按钮，选择保存路径
比如我选择的是 C:\Users\e3724\Desktop\a
那么将这个路径在下面python脚本中有用到
from pywinauto import Application
import time
import os
import hashlib
import threading
from pywinauto.keyboard import send_keys
from collections import defaultdict# 配置参数
SAVE_FOLDER = r"C:\Users\e3724\Desktop\a" # 目标保存路径
MAX_REPEAT = 2 # MD5重复阈值（达到此次数则停止）
WAIT_DELAY = 0.01 # 操作延迟（秒），如果在电脑上图片没被看过，则此数字要调大至1.0~3.0左右，因为第一次用网络加载需要时间
MONITOR_INTERVAL = 1 # 监控线程扫描间隔（秒）# 全局变量：文件名→MD5映射（线程安全）
file_md5_map = {}
# 全局变量：MD5出现次数统计
md5_count = defaultdict(int)
# 线程锁
map_lock = threading.Lock()def calculate_md5(file_path):"""计算文件MD5值"""if not os.path.exists(file_path):return Nonetry:hash_md5 = hashlib.md5()with open(file_path, "rb") as f:for chunk in iter(lambda: f.read(4096), b""):hash_md5.update(chunk)return hash_md5.hexdigest()except Exception as e:print(f"计算MD5失败：{str(e)}")return Nonedef folder_monitor():"""后台线程：监控文件夹并更新MD5映射"""global file_md5_map, md5_countwhile True:if os.path.exists(SAVE_FOLDER):for filename in os.listdir(SAVE_FOLDER):if filename.endswith(".jpg") and filename.split(".")[0].isdigit():file_path = os.path.join(SAVE_FOLDER, filename)with map_lock:current_md5 = calculate_md5(file_path)if current_md5:# 处理文件更新（如覆盖保存）if filename in file_md5_map:old_md5 = file_md5_map[filename]md5_count[old_md5] -= 1if md5_count[old_md5] <= 0:del md5_count[old_md5]# 更新映射和计数file_md5_map[filename] = current_md5md5_count[current_md5] += 1time.sleep(MONITOR_INTERVAL)def wait_for_file(filename, timeout=10):"""等待文件被监控线程捕获"""start_time = time.time()while time.time() - start_time < timeout:with map_lock:if filename in file_md5_map:return Truetime.sleep(0.5)return Falsedef final_dedup():"""流程结束后统一删除重复文件（只保留第一个出现的）"""with map_lock:# 按文件名排序（确保按顺序保留第一个）sorted_files = sorted(file_md5_map.keys(), key=lambda x: int(x.split(".")[0]))md5_first_occurrence = {} # 记录MD5首次出现的文件名duplicate_files = [] # 记录重复文件for filename in sorted_files:md5 = file_md5_map[filename]if md5 not in md5_first_occurrence:md5_first_occurrence[md5] = filenameelse:duplicate_files.append(filename)# 删除重复文件for filename in duplicate_files:file_path = os.path.join(SAVE_FOLDER, filename)if os.path.exists(file_path):try:os.remove(file_path)print(f"最终去重：删除重复文件 {filename}")except Exception as e:print(f"删除重复文件失败 {filename}：{str(e)}")return len(sorted_files) - len(duplicate_files), len(duplicate_files)def auto_download_wechat_images(window_title, next_btn_text="下一张", save_btn_text="另存为"):# 记录开始时间start_time = time.time()try:# 启动监控线程monitor_thread = threading.Thread(target=folder_monitor, daemon=True)monitor_thread.start()print("已启动文件夹监控线程...")time.sleep(2)# 连接窗口app = Application(backend="uia").connect(title_re=f".*{window_title}.*", timeout=10)main_window = app.window(title_re=f".*{window_title}.*")main_window.set_focus()print(f"已连接到窗口：{main_window.window_text()}")click_count = 1stop_flag = Falsewhile not stop_flag:# 查找下一张按钮next_btn = Nonefor btn in main_window.descendants(control_type="Button"):btn_text = btn.window_text().strip()if next_btn_text in btn_text or "→" in btn_text:next_btn = btnbreakif not next_btn or not next_btn.is_enabled():print("未找到可用的下一张按钮，停止流程")break# 查找另存为按钮save_btn = Nonefor btn in main_window.descendants(control_type="Button"):btn_text = btn.window_text().strip()if save_btn_text in btn_text or "保存" in btn_text:save_btn = btnbreakif not save_btn or not save_btn.is_enabled():print("未找到可用的另存为按钮，跳过")next_btn.click_input()click_count += 1time.sleep(WAIT_DELAY)continue# 保存当前图片current_filename = f"{click_count}.jpg"print(f"\n===== 处理第{click_count}张图片（{current_filename}）=====")save_btn.click_input()time.sleep(WAIT_DELAY ) # 等待对话框# 输入文件名（重试机制）save_success = Falsefor _ in range(3):try:send_keys(current_filename.split(".")[0]) # 输入数字time.sleep(0.5)send_keys("{ENTER}")save_success = Truebreakexcept:time.sleep(1)if not save_success:print("保存失败，跳过")next_btn.click_input()click_count += 1continue# 等待文件被监控线程捕获if not wait_for_file(current_filename):print(f"警告：{current_filename} 未被监控到，可能保存路径错误")next_btn.click_input()click_count += 1continue# 检查MD5重复情况with map_lock:current_md5 = file_md5_map[current_filename]current_md5_count = md5_count[current_md5]print(f"当前MD5：{current_md5}，累计出现次数：{current_md5_count}")# 首次重复时输出日志if current_md5_count == 2:print(f"⚠️ MD5首次重复（当前文件：{current_filename}）")# 达到重复阈值时停止流程elif current_md5_count >= MAX_REPEAT:print(f"⚠️ MD5重复达到阈值（{MAX_REPEAT}次），停止流程")stop_flag = Truebreak# 点击下一张next_btn.click_input()click_count += 1time.sleep(WAIT_DELAY * 2)# 流程结束后统一去重print("\n开始最终去重...")total_valid, total_duplicate = final_dedup()# 计算总耗时end_time = time.time()total_time = end_time - start_timeminutes = int(total_time // 60)seconds = total_time % 60print(f"\n===== 结果统计 =====")print(f"总下载文件数：{len(file_md5_map)}")print(f"去重后保留：{total_valid} 张")print(f"删除重复文件：{total_duplicate} 张")print(f"总耗时：{minutes}分{seconds:.2f}秒")except Exception as e:# 异常时也统计耗时end_time = time.time()total_time = end_time - start_timeprint(f"流程出错：{str(e)}，已运行{total_time:.2f}秒")if __name__ == "__main__":input("请确认路径正确且手动测试过保存功能，按回车开始...")auto_download_wechat_images(window_title="图片查看",next_btn_text="下一张",save_btn_text="另存为")