要复制/测试鼠标滚轮，您必须使用脚本注入将mouseover、mousemove和wheel事件发送到顶部元素。
以下是谷歌Map的一个实用示例：

from selenium import webdriver
from selenium.common.exceptions import WebDriverException

def wheel_element(element, deltaY = 120, offsetX = 0, offsetY = 0):
  error = element._parent.execute_script("""
    var element = arguments[0];
    var deltaY = arguments[1];
    var box = element.getBoundingClientRect();
    var clientX = box.left + (arguments[2] || box.width / 2);
    var clientY = box.top + (arguments[3] || box.height / 2);
    var target = element.ownerDocument.elementFromPoint(clientX, clientY);

    for (var e = target; e; e = e.parentElement) {
      if (e === element) {
        target.dispatchEvent(new MouseEvent('mouseover', {view: window, bubbles: true, cancelable: true, clientX: clientX, clientY: clientY}));
        target.dispatchEvent(new MouseEvent('mousemove', {view: window, bubbles: true, cancelable: true, clientX: clientX, clientY: clientY}));
        target.dispatchEvent(new WheelEvent('wheel',     {view: window, bubbles: true, cancelable: true, clientX: clientX, clientY: clientY, deltaY: deltaY}));
        return;
      }
    }    
    return "Element is not interactable";
    """, element, deltaY, offsetX, offsetY)
  if error:
    raise WebDriverException(error)

options = webdriver.ChromeOptions()
options.add_argument("--disable-infobars --disable-extensions --window-size=1366,768")
driver = webdriver.Chrome(chrome_options=options)
driver.get("https://www.google.co.uk/maps")

# get element

elm = driver.find_element_by_css_selector("#scene > div.widget-scene > canvas")

# zoom in with mouse wheel

wheel_element(elm, -120)

# zoom out with mouse wheel

wheel_element(elm, 120)

作为替代，你可以发送谷歌Map+/-的缩放快捷键：

# get element

elm = driver.find_element_by_css_selector("#scene > div.widget-scene > canvas")

# zoom in with shortcut

elm.send_keys("+")

# zoom out with shortcut

elm.send_keys("-")

在谷歌Map上，有一个放大/缩小按钮。你可以用它来代替鼠标滚动。
//点击放大

driver.find_element_by_id('widget-zoom-in').click()

//点击缩小

driver.find_element_by_id('widget-zoom-out').click()

如果将JS代码片断外包到一个单独的文件中，并将其 Package 成带有可读参数名称的旧式JS模块格式，则可能会有一点改进。
名为simulate_wheel.js的文件，其中包含：

/* global arguments */
(function (element, deltaY, offsetX, offsetY) {
    var box = element.getBoundingClientRect();
    var clientX = box.left + (offsetX || box.width / 2);
    var clientY = box.top + (offsetY || box.height / 2);
    var target = element.ownerDocument.elementFromPoint(clientX, clientY);

    for (var e = target; e; e = e.parentElement) {
        if (e === element) {
            target.dispatchEvent(new MouseEvent("mouseover", {
                view: window,
                bubbles: true,
                cancelable: true,
                clientX: clientX,
                clientY: clientY
            }));
            target.dispatchEvent(new MouseEvent("mousemove", {
                view: window,
                bubbles: true,
                cancelable: true,
                clientX: clientX,
                clientY: clientY
            }));
            target.dispatchEvent(new WheelEvent("wheel", {
                view: window,
                bubbles: true,
                cancelable: true,
                clientX: clientX,
                clientY: clientY,
                deltaY: deltaY
            }));
            return "";
        }
    }
    return "Element is not interactable";
}).apply(null, arguments);

然后可以将其读取并用于以下内容

# Load it using the module loader, the module in this example is called "helper_js"

# Alternatively, simple read functions could be used

import pkgutil
wheel_js = pkgutil.get_data("helper_js", "simulate_wheel.js").decode("utf8")

def simulate_wheel(element, deltaY=120, offsetX=0, offsetY=0):
    error = element._parent.execute_script(wheel_js, element, deltaY, offsetX, offsetY)
    if error:
        raise WebDriverException(error)

这类似于它是如何深入到Python的Selify绑定中的。

您可以尝试使用PyRobot类，首先将焦点放在要执行放大/缩小操作的点上，然后使用PyRobot类通过键盘键执行放大/缩小操作。

编辑：附注。这是为了使用Chrome版本107.0.5304.88和Selify版本4.6.0(截至本文的最新版本)。
我试了那么多方法，但都不管用。太多了。我不确定这是否是Selify或Python的版本问题，但这确实是一件痛苦的事情，文档也没有帮助。
然后，我偶然发现有人在C#中为Selence编写代码，他们的解决方案略有不同。针对Python进行了调整，这对我很管用：

driver.get(url)
driver.execute_script("document.body.style.zoom = '25%'")

祝好运!希望这能帮助其他人。