Python+selenium自動循環送賀卡

Python源代碼以下:

# coding=utf-8
from selenium import webdriver
from time import sleep
from random import randint


def auto_throw(target_qq, username, password):
    """自動循環送賀卡"""
    driver = webdriver.Chrome()
    driver.get("https://mail.qq.com")
    driver.set_window_size(1100, 580)
    sleep(1)
    # 切換iframe表單
    driver.switch_to.frame("login_frame")
    driver.find_element_by_xpath('//*[@id="u"]').send_keys(username)
    driver.find_element_by_xpath('//*[@id="p"]').send_keys(password)
    driver.find_element_by_xpath('//*[@id="login_button"]').click()
    sleep(1)
    # 將表單切回到最外層
    driver.switch_to.default_content()
    sleep(2)
    m = 0
    while True:
        try:
            m += 1
            driver.switch_to.default_content()
            driver.find_element_by_xpath('//*[@id="folder_card"]').click()  # 賀卡
            sleep(2)
            # 切換iframe表單
            driver.switch_to.frame("mainFrame")
            driver.find_element_by_xpath('//*[@id="preview_1072308"]/img').click()   # 兒童節
            # 將表單切回到最外層
            driver.switch_to.default_content()
            sleep(2)
            driver.find_element_by_xpath('//div[@class="dialog_operate"]/a').click()    # 發送
            sleep(2)
            driver.find_element_by_xpath('//a[@title="%s@qq.com"]'%target_qq).click()
            sleep(1)
            driver.find_element_by_xpath('//*[@id="GreetingCard_QMDialog_content"]').clear()
            driver.find_element_by_xpath('//*[@id="GreetingCard_QMDialog_content"]').send_keys("第%d張賀卡發送成功!隨機代號%d!"%(m,randint(10000,100000)))
            sleep(2)
            driver.find_element_by_xpath('//*[@id="GreetingCard_QMDialog_sendbtn"]').click()   # 發送
            print("第%d張賀卡發送成功!"%m)
            sleep(2)
        except:
            print("送卡失敗!")
            sleep(2)


if __name__ == '__main__':
    print("--------自動循環送賀卡腳本--------")
    target_qq = input("請輸入對方qq號:")
    username = input("輸入你的QQ郵箱用戶名:")
    password = input("輸入你的QQ郵箱登陸密碼:")
    auto_throw(target_qq, username, password)