将新对象添加到列表中，则已存储的对象将被新对象覆盖

我想请一些帮助！我使用 WebDriver 编写自动化测试，我有下面的代码。此静态方法的目的是从页面的某个部分收集对象。

如您所见，我使用 for 循环来修改定位器值，并测试定位器是否显示。如果显示它，那么我启动 MenuGroupObject 对象并将其放入一个列表对象中，该对象是最后的返回值。

请查看代码片段下方的输出结果。

public static List<MenuGroupPageObject> GetListOfMenuGroups(IWebDriver webDriver)
    {
        var listOfMenuGroupPageObjects = new List<MenuGroupPageObject>();
        var menuGroupLocatorPattern = MenuBarLocatorHelper.GetMenuBarRootLocator() +
                                      MenuBarLocatorHelper.GetLocatorPatternForMenuGroups();
        for (var i = 1; i < 20; i++)
        {
            var realMenuGroupNameLocator = menuGroupLocatorPattern.Replace(
                MenuBarLocatorHelper.GetThePureMenuGroupLocatorPatternForMenuGroups(), i.ToString(CultureInfo.InvariantCulture));
            if(SafeElementHandler.IsElementPresent(webDriver,By.XPath(realMenuGroupNameLocator)))
            {
                var menuGroupObject = new MenuGroupPageObject(webDriver, realMenuGroupNameLocator);
                listOfMenuGroupPageObjects.Add(menuGroupObject);
                foreach (MenuGroupPageObject listOfMenuGroupPageObject in listOfMenuGroupPageObjects)
                {
                    Console.WriteLine("mainlocators in the bag round: " + i + "... " + listOfMenuGroupPageObject.GetMainLocator());
                }
            }
        }
        return listOfMenuGroupPageObjects;
    }

所以，结果是这样的：

    mainlocators in the bag round: 1... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[1]
mainlocators in the bag round: 2... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[2]
mainlocators in the bag round: 2... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[2]
mainlocators in the bag round: 3... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[3]
mainlocators in the bag round: 3... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[3]
mainlocators in the bag round: 3... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[3]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[4]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[4]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[4]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[4]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[5]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[5]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[5]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[5]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[5]

您应该注意的是，在每个回合中，已经存储的对象将被最新的对象覆盖。但是，它应该是这样的：

    mainlocators in the bag round: 1... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[1]
mainlocators in the bag round: 2... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[1]
mainlocators in the bag round: 2... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[2]
mainlocators in the bag round: 3... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[1]
mainlocators in the bag round: 3... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[2]
mainlocators in the bag round: 3... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[3]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[1]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[2]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[3]
mainlocators in the bag round: 4... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[4]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[1]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[2]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[3]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[4]
mainlocators in the bag round: 5... //div[@id='contentContainer']/div[@id='container']/div[@id='leftHandMenubar']/ul[5]

我的问题是，出了什么问题？我在 c# 中检查了列表<>我没有发现任何如果缺少（缺少构造函数参数等）会导致这样的事情