**电脑键盘上的隐藏功能 - 你知道多少？** 在我们日常使用电脑的过程中，键盘无疑是与我们接触最频繁的输入设备之一。然而，除了常见的打字和输入功能外，键盘还隐藏着许多其他功能。今天，让我们一起来探索这些隐藏功能，看看你知道多少。

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一、导航和操控 1. Tab键和Shift+Tab键：Tab键通常用于跳到下一个选项或焦点，而Shift+Tab键则用于返回到上一个选项，这在浏览网页或填写表单时非常有用。 2. Page Up和Page Down键：这两个键用于快速滚动页面或文档。在许多软件中，按住这些键的同时滚动鼠标滚轮，可以实现更快的滚动速度。 二、编辑和修改 1. 删除键（Delete）和Backspace键：这两个键常用于删除字符或文本。不过，大多数现代键盘的Delete键有更多功能，如可以在一些程序中直接删除选中的内容。 2. 重复输入：按住某个字符键可以快速连续输入该字符。这对于快速填充内容或制作表格非常有用。 三、快捷键 快捷键是键盘上的一个重要功能，通过组合不同的按键可以快速执行特定的命令或操作。例如：Ctrl+C复制、Ctrl+V粘贴、Ctrl+Z撤销等。这些快捷键大大提高了我们的工作效率。 四、特殊符号和表情输入 在许多键盘上，可以通过按住特定的按键或组合键来输入特殊符号或表情符号。例如，通过按下Shift+特殊符号键可以输入美元符号或欧元符号等。同时，一些输入法还支持通过组合键快速输入表情符号。 **Hidden Functions of the Computer Keyboard - How Much Do You Know?** In our daily use of computers, the keyboard is undoubtedly one of the most frequently used input devices. However, besides the common typing and input functions, there are many hidden features in the keyboard. Today, let's explore these hidden functions and see how much you know. I. Navigation and Control 1. Tab key and Shift+Tab key: The Tab key is often used to jump to the next option or focus, while the Shift+Tab key is used to return to the previous option, which is very useful when browsing the web or filling out forms. 2. Page Up and Page Down keys: These keys are used to quickly scroll through pages or documents. In many software programs, holding down these keys while scrolling with the mouse wheel allows for faster scrolling speeds. II. Editing and Modifying 1. Delete key and Backspace key: These keys are often used to delete characters or text. However, modern keyboards often have more functions for the Delete key, such as deleting selected content in some programs directly. 2. Repeat Input: Holding down a character key allows for rapid consecutive input of that character, which is useful for quickly filling in content or creating tables. III. Shortcuts Shortcuts are an important function of the keyboard, allowing for quick execution of specific commands or operations by combining different keys. For example, Ctrl+C for copy, Ctrl+V for paste, Ctrl+Z for undo, etc. These shortcuts greatly improve our work efficiency.

IV. Special Symbols and Emoji Input

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On many keyboards, special symbols or emojis can be input by holding down specific keys or combination keys. For example, by pressing Shift+special symbol key, you can input dollar signs or euro symbols, etc. At the same time, some input methods also support quick input of emojis through combination keys.