python使用win32gui上传文件

import win32con
import win32gui

class WinUpLoadFile:

def winUpLoadFile(self,file_path,title):
#一级顶层窗口，此处title为上传窗口名称，浏览器不一样上传窗口名称不一样
dialog = win32gui.FindWindow("#32770",title)
#二级窗口
ComboBoxEx32 = win32gui.FindWindowEx(dialog,0,"ComboBoxEx32",None)
#三级窗口
comboBox = win32gui.FindWindowEx(ComboBoxEx32,0,"ComboBox",None)
#四级窗口
edit = win32gui.FindWindowEx(comboBox,0,'Edit',None)
button = win32gui.FindWindowEx(dialog,0,'Button',None)
#执行操作 输入文件路径
win32gui.SendMessage(edit,win32con.WM_SETTEXT,None,file_path)
#点击打开上传文件
win32gui.SendMessage(dialog,win32con.WM_COMMAND,1,button)