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The host is the most important. People input data to the host computer through keyboard, mouse and other input devices. After data processing by the host computer, the results are output to us through output devices such as displays and printers. The main components of the host include: memory, hard disk, motherboard, graphics card, sound card, optical drive, floppy drive, etc. Now many graphics card-like components can be integrated into the motherboard. CPU is also called central processing unit. CPU is the abbreviation of Central Processing Unit in English. As important as people's brains. It directs and dispatches all the work of the computer. Usually we refer to the CPU model when we say Ben 2, Ben 3 and Ben 4.秦淼扑到板栗跟前，惊慌地喊道：你……你受伤了？板栗忙对她摇头，快速低声道：不要紧。In order to make OPPO users who like fresh fashion have more and better original themes; It also gives many UI designers a platform to give full play to their talents. OPPO and ZCOOL launched the first "OPPO Mobile Phone Theme Design Contest". It is hoped that through people's participation and professional exchanges, the satisfaction of OPPO mobile phone users and the standard of original UI design will be further improved.Originated in Europe. It was listed as the first Olympic Games in 1896.江海市，夏天的“桃花运”接踵而来，三年前私定终身的，天才少女乔小乔，江海女首富叶梦莹，江海医院医花柳云曼，江海警花冷冰冰都钟情于他，涉世未深的呆萌少年该如何选择。与此同时，高名扬却痴情于柳云曼，一心想要得到柳云曼；苏小灿深爱着叶梦莹，为了叶梦莹，多次与叶少杰对抗。高名扬、叶少杰、乔东海不断“找茬”于夏天，夏天一个人又该如何与三人对抗，阴医门与鬼医门的恩怨逐渐浮出水面Code as above; You can see, There are obvious shortcomings, For example, when I click on an element, I need to create a div. I click on the second element to create a div again, We frequently click on such and such elements, and they will frequently create div elements. Although we can remove pop-up codes when we click Close, it is not good for us to frequently create and delete them, especially for performance, and frequent operations on DOM will cause redrawing, etc., thus affecting performance. Therefore, this is a very bad habit. We can now use the monomer mode to realize the pop-up effect. We can instantiate it only once. The following code: