This is my first time writing an article. This article is the product of boredom, and it is written for myself. The writing style is probably at the level of someone who has not graduated from elementary school. If unfortunately someone sees this article and is offended, I will be very helpless. I really can't stand it any longer, so I'll pat it down a little gentler. My mental capacity is limited, and I won't quarrel, so I'll ask you all to be free when the time comes. . . . . .