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A complete computer system consists of hardware and software. As the name implies, hardware is the physical equipment that can be seen and touched in the computer, such as the host computer. Software, on the other hand, is relative to hardware. It refers to various programs and related documents needed to run on the computer, such as a drawing software or a gobang game. Computer hardware and software are indispensable. Hardware is the material basis on which software can work and is the "body". Software is the soul of the computer and the core of controlling and operating the computer. They complement each other and form a complete computer system. From the appearance, the computer includes: monitor, host computer, keyboard, mouse and sound box.这也不费多少事，就像姑父说的，煮一顿饭，洗一回衣裳，还能就失了大丈夫威仪了？郑氏听得目瞪口呆：这小子往后泡妞肯定是高手。"Where I hope the company can improve"你再这么拦着，我们可要喊人了。版本一Decorator mode is also called Wrapper mode, which can dynamically add some additional functions to an object. Decorator mode is more flexible than the way of inheriting and generating subclasses. Although decorator mode can dynamically attach responsibilities to objects, it will also cause some small objects to be generated, increasing the complexity of the system. The specific structure diagram is shown below.尹旭柔声微笑道：绿萝，知道吗，今天寡人特别的高兴，感谢你为寡人剩下一个可爱漂亮的女儿……从今天开始她就是我越国公主。