The collection class provides protected methods that can be used to customize its behavior when adding and removing items, clearing the collection, or setting the value of an existing item. collection类提供了受保护的方法,这些方法可用于在添加和移除项、清除集合或设置现有项的值时自定义该类的行为。
You can hide the Address bar or Links bar by right-clicking the toolbar, and then clearing the check mark for each item you want to hide. 右键单击工具栏,然后清除要隐藏的项目旁的复选标记,即可隐藏地址栏或链接栏。