参考github-zheye编写好的程序

程序环境：python3.6+tensorflow1.5

python3.7+tensorflow2.2如果用于老式机器，会一直失败，请注意，降级到3.6+1.5

知乎会识别chromedriver里面的关键字，从而禁止我们访问，我们可以加入以下代码规避检测

        chrome_option = Options()
        chrome_option.add_argument("--disable-extensions")
        chrome_option.add_experimental_option("excludeSwitches",['enable-automation'])
        chrome_option.add_experimental_option("debuggerAddress", "127.0.0.1:9222")

知乎识别汉字倒立文字

    def deal_with_chinese_captcha(self, Captcha_chineseImg):
        """
            deal with chinese captcha
        :param chinese_captcha_element:
        :return:
        """
        ele_position = Captcha_chineseImg.location
        x_relative = ele_position["x"]
        y_relative = ele_position["y"]
        browser_navigation_panel_height = self.browser.execute_script(
            'return window.outerHeight - window.innerHeight;')
        base64_text = Captcha_chineseImg.get_attribute("src")
        # 这里需要注意这个OA
        code = base64_text.replace('data:image/jpg;base64,', '').replace("%0A", "")
        # print code
        fh = open("yzm_cn.jpeg", "wb")
        fh.write(base64.b64decode(code))
        fh.close()

        # 识别汉字坐标，关键代码
        z = zheye()
        positions = z.Recognize('yzm_cn.jpeg')
        last_position = []
        if len(positions) == 2:
            if positions[0][1] > positions[1][1]:
                last_position.append([positions[1][1], positions[1][0]])
                last_position.append([positions[0][1], positions[0][0]])
            else:
                last_position.append([positions[0][1], positions[0][0]])
                last_position.append([positions[1][1], positions[1][0]])
            # 获取坐标，这里因为实际显示的文字比生成的文字小，是1:2的关系，所以还原
            first_position = [int(last_position[0][0] / 2), int(last_position[0][1] / 2)]
            second_position = [int(last_position[1][0] / 2), int(last_position[1][1] / 2)]

            # 点击第一个汉字，这里x_relative是图片位置，后面是汉字坐标
            # y_relative是图片但是要加上浏览器地址栏坐标+汉字纵坐标
            move(x_relative + first_position[0],
                 y_relative + browser_navigation_panel_height + first_position[1])
            click()
            # 点击第二个汉字
            time.sleep(1)
            move(x_relative + second_position[0],
                 y_relative + browser_navigation_panel_height + second_position[1])
            click()
        else:
            last_position.append([positions[0][1], positions[0][0]])
            first_position = [int(last_position[0][0] / 2), int(last_position[0][1] / 2)]
            move(x_relative + first_position[0],
                 y_relative + browser_navigation_panel_height + first_position[1])
            click()
        # 输入验证码后继续登录
        self.browser.find_element_by_name("username").send_keys(Keys.CONTROL + "a")
        self.browser.find_element_by_name("username").send_keys(ZHIHU_USER)
        time.sleep(2)
        self.browser.find_element_by_name("password").send_keys(Keys.CONTROL + "a")
        self.browser.find_element_by_name("password").send_keys(ZHIHU_PWD)
        time.sleep(2)
        self.browser.find_element_by_xpath('//*[@id="root"]/div/main/div/div/div/div[1]/div/form/button').click()
        if self.check_login():
            login_success = True